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| service manual ba-4c chassis model commander dest chassis no. KV-24FV10 rm-y168 us scc-s22a-a KV-24FV10 rm-y168 cnd scc-s24a-a kv-25fv10 rm-y168 e scc-s23a-a kv-25fv10c rm-y168 e scc-s23c-a microfilm trinitron ? color tv rm-y168 KV-24FV10 free datasheet http://
2 KV-24FV10/25fv10/25fv10c specifications t ele vision system american tv standard/ntsc channel covera g e vhf:2-13/uhf:14-69/catv:1-125 visib le screen siz e 24" picture measured diagonally actual screen siz e 25" picture measured diagonally antenna 75 ohm external terminal for vhf/uhf supplied accessories remote commander rm-y168 (all models) size aa (r6) batteries (2) optional accessories dipole antenna connecting cables vmc-810s/820s, vmc-720m, yc-15v/30v, rk74a u/v mixer eac-66 design and specifications are subject to change without notice. ( ? ) srs (sound retrieval system) the ( ? ) srs (sound retrieval system) is manufactured by sony corporation under license from srs labs, inc. it is covered by u.s. patent no. 4,748,669. other u.s. and foreign patents pending. the word srs and the srs symbol ( ? ) are registered trademarks of srs labs, inc. bbe and bbe symbol are trademarks of bbe sound, inc. and are licensed by bbe sound, inc. under u.s. patent no. 4,638,258 and 4,482,866. KV-24FV10 kv-25fv10/10c power requirements 120v, 60 hz auto volt (120C220 vac) number of inputs/outputs video input (1) 22 s video input (2) 11 audio input (3) 22 audio output (4) 11 speaker output (w) 10w x 2 10w x 2 power consumption (w) in use (max) 150w 150w in standby 1w 1w dimensions (w/h/d) (mm) 652 x 524.3 x 467.3 mm 652 x 524.3 x 467.3 mm (in) 25 3 / 4 x 20 11 / 16 x 18 7 / 16 in 25 3 / 4 x 20 11 / 16 x 18 7 / 16 in mass (kg) 40 kg 40 kg (lbs) 88 lbs. 3 oz. 88 lbs. 3 oz. 1) 1 vp-p 75 ohms unbalanced, sync negative 2) y: 1 vp-p 75 ohms unbalanced, sync negative c: 0.286 vp-p (burst signal), 75 ohms 3) 500 mvrms (100% modulation), impedance: 47 kilohms 4) more than 408 mvrms at the maximum volume setting (variable) more than 408 mvrms (fix) free datasheet http:// 3 KV-24FV10/25fv10/25fv10c section title page warnings and cautions .......................................................................................................... ..................................................... 4 self-diagnostic function ....................................................................................................... ...................................................... 4 safety check out instructions .................................................................................................. ................................................... 7 1. general ............................................................................................................................... ............................ 8 2. disassembly 2-1. rear cover removal ......................................................................................................... ............................................ 14 2-2. a board removal ............................................................................................................ .............................................. 14 2-3. service position ........................................................................................................... ................................................. 14 2-4. picture tube removal ....................................................................................................... ............................................ 15 3. set-up adjustments 3-1. beam landing ............................................................................................................... ................................................ 16 3-2. convergence ................................................................................................................ ................................................. 17 3-3. focus ...................................................................................................................... ....................................................... 18 3-4. screen (g2) ................................................................................................................ ................................................... 18 3-5. method of setting the service adjustment mode .............................................................................. ........................... 19 3-6. white balance adjustments .................................................................................................. ........................................ 19 4. safety related adjustments 4-1. r582 and r584 confirmation method (hv hold-down confirmation and readjustments) ................................... 20 4-2. b+ voltage confirmation and adjustment ..................................................................................... ................................ 20 5. circuit adjustments 5-1. setting the service adjustment mode ........................................................................................ .................................. 22 5-2. memory write confirmation method ........................................................................................... .................................. 22 5-3. adjustment buttons and indicators .......................................................................................... ..................................... 22 5-4. a board adjustments ........................................................................................................ ............................................ 25 6. diagrams 6-1. block diagram .............................................................................................................. ................................................. 29 6-2. circuit board location ..................................................................................................... .............................................. 32 6-3. printed wiring boards and schematic diagrams ............................................................................... .......................... 32 ? a board ....................................................................................................................... ............................................. 33 ? g board ....................................................................................................................... ............................................. 41 ? v board ....................................................................................................................... ............................................. 45 ? c board ....................................................................................................................... ............................................. 46 6-4. semiconductors ............................................................................................................. ............................................... 51 7. exploded view 7-1. chassis .................................................................................................................... ...................................................... 52 8. electrical parts list ............................................................................................................................... ................. 53 table of contents free datasheet http:// 4 KV-24FV10/25fv10/25fv10c warnings and cautions ca ution short circuit the anode of the picture tube and the anode cap to the metal chassis, crt shield, or carbon painted on the crt, after removing the anode. warning!! an isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis. the chassis of this receiver is directly connected to the ac power line. safety-related component warning!! components identified by shading and mark on the schematic diagrams, exploded views, and in the parts list are critical for safe operation. replace these components with sony parts whose part numbers appear as shown in this manual or in supplements published by sony. circuit adjustments that are critical for safe operation are identified in this manual. follow these procedures whenever critical components are replaced or improper operation is suspected. a ttention apres avoir deconnecte le cap de l'anode, court-circuiter l'anode du tube cathodique et celui de l'anode du cap au chassis metallique de l'appareil, ou au couche de carbone peinte sur le tube cathodique ou au blindage du tube cathodique. attention!! afin d'eviter tout resque d'electrocution provenant d'un chssis sous tension, un transformateur d'isolement doit etre utilis lors de tout dpannage. le chssis de ce rcepteur est directement raccord l'alimentation secteur. a ttention a ux composants rela tifs a la securite!! les composants identifies par une trame et par une marque sur les schemas de principe, les vues explosees et les listes de pieces sont d'uneimportance critique pour la securite du fonctionnement. ne les remplacer que par des composants sony dont le numero de piece est indique dans le present manuel ou dans des supplements publies par sony. les reglages de circuit dont l'importance est critique pour la securite du fonctionnement sont identifies dans le present manuel. suivre ces procedures lors de chaque remplacement de composants critiques, ou lorsqu'un mauvais fontionnement suspecte. self-diagnostic function the units in this manual contain a self-diagnostic function. if an error occurs, the standby/timer led will automatically begin to flash. the number of times the led flashes translates to a probable source of the problem. a definition of the standby/timer le d flash indicators is listed in the instruction manual for the users knowledge and reference. if an error symptom cannot be repr oduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these problems occur. diagnostic test indicators when an error occurs, the standby/timer led will flash a set number of times to indicate the possible cause of the problem. if there is more than one error, the led will identify the first of the problem areas. results for all of the following diagnostic items are displayed on screen. no error has occurred if the screen displays a 0. diagnostic item description no. of times standby/timer led flashes self-diagnostic display/ diagnostic result probable cause location detected symptoms power does not turn on does not light ? power cord is not plugged in. ? fuse is burned out. (f600) (g board) ? power does not come on. ? no power is supplied to the tv. ? ac power supply is faulty. +b overcurrent (ocp)* 2 times 2:0 or 2:1 ? h.out (q502) is shorted. (a board) ? ic1751 is shorted. (c board) ? power does not come on. ? load on power line is shorted. vertical deflection stopped* 4 times 4:0 or 4:1 ? +13v is not supplied. (a board) ? ic541 is faulty. (a board) ? has entered standby state after horizontal raster. ? vertical deflection pulse is stopped. ? power line is shorted or power supply is stopped. white balance failure (not balanced) 5 times 5:0 or 5:1 ? video out (ic541) is faulty. (a board) ? ic301 is faulty. (a board) ? screen (g2) is improperly adjusted.** ? no raster is generated. ? crt cathode current detection reference pulse output is small. * if a +b overcurrent is detected, stoppage of the vertical deflection is detected simultaneously. the symptom that is diagnosed first by the microcontroller is displayed on the screen. ** refer to screen (g2) adjustments in section 3-4 of this manual. free datasheet http:// 5 KV-24FV10/25fv10/25fv10c display of standby/timer led flash count led on 0.3 sec. led off 0.3 sec. led off 3 sec. 2 times 4 times 5 times diagnostic item flash count* +b overcurrent 2 times vertical deflection stopped 4 times white balance failure 5 times *one flash count is not used for self-diagnostic. stopping the standby/timer led flash turn off the power switch on the tv main unit or unplug the power cord from the outlet to stop the standby/timer lamp from flashing. self-diagnostic screen display for errors with symptoms such as power sometimes shuts off or screen sometimes goes out that cannot be confirmed, it is possible to bring up past occurrences of failure on the screen for confirmation. to bring up screen test in standby mode, press buttons on the remote commander sequentially, in rapid succession, as shown below: display channel 5 sound volume note that this differs from entering the service mode (sound volume ). power on + self diagnostic screen display self diagnostic 2: 3: 4: 5: 101: n/a n/a 0 0 0 1 0 numeral 0 means that no fault was detected. numeral 1 means a fault was detected one time only. standby/timer led free datasheet http:// 6 KV-24FV10/25fv10/25fv10c handling of self-diagnostic screen display since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen dur ing repairs. when you have completed the repairs, clear the result display to 0. unless the result display is cleared to 0, the self-diagnostic function will not be able to detect subsequent faults after co mpletion of the repairs. clearing the result display to clear the result display to 0, press buttons on the remote commander sequentially when the diagnostic screen is displayed, as shown below: enter channel 8 quitting the self-diagnostic screen to quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit. self-diagnostic circuit ic301 y/chroma jungle ic541 v. out ic001 system ic003 memory ik in from crt 21 hp/protect sda from ic521 pin 7 18 35 io-sdat o-led 37 ref 3 i-prot io-bdat 17 36 b-dat 5 18 display +b overcurrent (ocp) occurs when an overcurrent on the +b (115v) line is detected by pin 18 of ic301. if the voltage of pin 18 of ic 301 is less than 1v when v.sync is more than seven verticals in a period, the unit will automatically turn off. vertical deflection stopped occurs when an absence of the vertical deflection pulse is detected by pin 17 of ic001. power supply will shut down when waveform interval exceeds 2 seconds. white balance failure if the rgb levels* do not balance within 2 seconds after the power is turned on, this error will be detected by ic301. tv will stay on, but there will be no picture. *(refers to the rgb levels of the akb detection ref pulse that detects 1k.) free datasheet http:// 7 KV-24FV10/25fv10/25fv10c after correcting the original service problem, perform the following safety checks before releasing the set to the customer: 1. check the area of your repair for unsoldered or poorly soldered connections. check the entire board surface for solder splashes and bridges. 2. check the interboard wiring to ensure that no wires are pinched or touching high-wattage resistors. 3. check that all control knobs, shields, covers, ground straps, and mounting hardware have been replaced. be absolutely certain that you have replaced all the insulators. 4. look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. point them out to the customer and recommend their replacement. 5. look for parts which, though functioning, show obvious signs of deterioration. point them out to the customer and recommend their replacement. 6. check the line cords for cracks and abrasion. recommend the replacement of any such line cord to the customer. 7. check the b+ and hv to see if they are specified values. make sure your instruments are accurate; be suspicious of your hv meter if sets always have low hv. 8. check the antenna terminals, metal trim, metallized knobs, screws, and all other exposed metal parts for ac leakage. check leakage as described below. safety check-out leaka g e t est the ac leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 ma (500 microamperes). leakage current can be measured by any one of three methods. 1. a commercial leakage tester, such as the simpson 229 or rca wt-540a. follow the manufacturers' instructions to use these instructions. 2. a battery-operated ac milliammeter. the data precision 245 digital multimeter is suitable for this job. 3. measuring the voltage drop across a resistor by means of a vom or battery-operated ac voltmeter. the limit indication is 0.75 v, so analog meters must have an accurate low voltage scale. the simpsons 250 and sanwa sh-63trd are examples of passive voms that are suitable. nearly all battery-operated digital multimeters that have a 2 vac range are suitable (see figure a). ho w to find a good ear th gr ound a cold-water pipe is a guaranteed earth ground; the cover- plate retaining screw on most ac outlet boxes is also at earth ground. if the retaining screw is to be used as your earth ground, verify that it is at ground by measuring the resistance between it and a cold-water pipe with an ohmmeter. the reading should be zero ohms. if a cold-water pipe is not accessible, connect a 60- to 100-watt trouble- light (not a neon lamp) between the hot side of the receptacle and the retaining screw. try both slots, if necessary, to locate the hot side on the line; the lamp should light at normal brilliance if the screw is at ground potential (see figure b). figure b. checking for earth ground. figure a. using an ac voltmeter to check ac leakage. free datasheet http:// 8 KV-24FV10/25fv10/25fv10c 3 connecting your tv read this chapter before setting up your tv for the first time. this section covers basic connections in addition to any optional equipment you may be connecting. basic connections tv with indoor or outdoor antenna, or catv cable depending on the cable available in your home, choose one of the connections below: - if you are connecting to an indoor or outdoor antenna, it will be necessary to adjust the orientation of the antenna for best reception. the instructions mentioned here are partial abstracts from the operating instruction manual. the page numbers shown reflect those of the operating instruction manual. 4 user guide connecting additional equipment tv and vcr 1 connect the coaxial cable from your tv antenna or cable tv to the in jack on your vcr. 2 connect a coaxial cable (not supplied) from the out jack on your vcr to the vhf/uhf in jack on the tv. (optional connection) 3 if your vcr is equipped with video inputs, for better picture quality you should connect a/v cables from audio and video out on your vcr to audio/video in on your tv. you can use the button to switch between the tv and vcr inputs. - to watch video programs from your vcr, tune your tv to channel 3 or 4 (as set on the rear of your vcr). - for optimum picture quality, use s video instead of the yellow a/v cable. s video does not provide sound, the audio cables must still be connected. (optional connection) vcr tv 2 1 3 from cable/antenna section 1 general free datasheet http:// 9 KV-24FV10/25fv10/25fv10c connecting your tv 5 tv and cable box 1 connect the coaxial cable from the wall to the in jack on your cable box. 2 connect a coaxial cable (not supplied) from the out jack on your cable box to the vhf/uhf in jack on the tv. - to view channels from your cable box, tune your tv to channel 3 or 4 (as set on the rear panel of your cable box). - if you will be controlling all channel selection through your cable box, you should consider using the channel fix feature on page 20. 6 user guide tv, vcr, and cable box 1 connect the coaxial cable from the wall to the in jack on your cable box. 2 connect a coaxial cable (not supplied) from the out jack on your cable box to the in jack on your vcr. 3 connect a coaxial cable (not supplied) from the out jack on your vcr to the vhf/uhf in jack on the tv. (optional connection) 4 if your vcr is equipped with video inputs, for better picture quality you should connect a/v cables from audio and video out on your vcr to audio/video in on your tv. you can use the button to switch between the tv and vcr inputs. - if you will be controlling all channel selection through your cable box, you should consider using the channel fix feature on page 20. - for optimum picture quality, use s video instead of the yellow a/v cable. s video does not provide sound, the audio cables must still be connected. 3 tv cable 4 (optional connection) cable box 1 vcr 2 free datasheet http:// 10 KV-24FV10/25fv10/25fv10c connecting your tv 7 tv and digital satellite receiver 1 connect the cable from your satellite antenna to satellite in on the satellite receiver. 2 attach the coaxial connector from your cable or antenna to vhf/uhf on your tv. 3 using a/v connectors, connect audio and video out on your satellite receiver to audio and video in on your tv. - you can use the button to switch between the satellite receiver and tv. - for optimum picture quality, use s video instead of the yellow a/v cable. s video does not provide sound, your audio connectors must still be connected. tv satellite receiver satellite antenna cable 1 2 3 from cable/ antenna 8 user guide tv, digital satellite receiver and vcr 1 connect the cable from your satellite antenna to satellite in on the satellite receiver. 2 attach the coaxial connector from your cable or antenna to vhf/uhf in on your vcr. 3 using a coaxial cable, connect vhf/uhf out on your vcr to vhf/uhf on your tv. 4 using a/v connectors, connect audio and video out on your satellite receiver to audio and video in on your vcr. 5 using a/v connectors, connect audio and video out on your vcr to audio and video in on your tv. - to view from the satellite or vcr, select the video input to which your satellite receiver or vcr is connected by pressing on the remote control. satellite receiver 4 5 2 3 1 cable tv vcr satellite antenna free datasheet http:// 11 KV-24FV10/25fv10/25fv10c connecting your tv 9 connecting a camcorder using a/v cables, connect audio and video out on your camcorder to audio and video in on your tv. connecting a dvd player using a/v connectors, connect line out on your dvd to video in on your tv. - for optimum picture quality, use s video instead of the yellow a/v cable. s video does not provide sound, your audio connectors must still be connected. (front a/v panel) a/v output a/v outputs (rear of tv) (rear of dvd player) 10 user guide connecting an audio system using audio connectors, connect audio out on your tv to one of the unused line inputs (e.g. tv, aux, tape 2) on your stereo. - set your stereo to the chosen line input. see page 16 for additional audio setup instructions. audio-l audio-r line input 1 2 free datasheet http:// 12 KV-24FV10/25fv10/25fv10c 11 using the remote control and basic functions this section shows you how to use more advanced buttons on the remote control and how to use the on-screen menus. button description power press when you want to turn connected equipment on and off. function press when you want to control connected equipment with your remote control. muting instantly turns off the sound. press again or press to restore sound. system off powers off all sony equipment at once. tv/video cycles through available video inputs. moves the cursor in the on- screen menus. press the arrow buttons to move the cursor, press the center button to select or access an option. picture mode cycles through the available video mode settings. sleep turns the tv off automatically in approximately 30, 60 or 90 minutes. cancel by pressing until sleep off appears. mts/sap cycles through the multi- channel tv sound (mts) options: stereo, sap (second audio programming), mono. display press once to show current time, (if set) and channel number. press again to activate caption vision settings, if available. to cancel, press again until display off appears. 12 user guide cycles through available auto volume settings (see page 16). jump alternates back and forth between the last two channels selected with the buttons. guide brings up the custom guide of your satellite receiver. menu displays the on-screen menu. press again to exit the menu at any time. reset press to return to factory settings while in the on-screen menu. code set use to program your remote control to operate connected video equipment, (see page 29). - _ - free datasheet http:// 13 KV-24FV10/25fv10/25fv10c 32 user guide troubleshooting if you are having a problem with your tv, try the suggestions below. if the problem persists, contact your nearest sony dealer. no picture, no sound o make sure the power cord is plugged in. o if a red light is flashing on the front of your tv for more than a few minutes, call your local service center. o check your parental control settings, (pages 25-26). o check the tv/video settings: when watching tv, set to tv; when watching video equipment, set to video (page 15). o make sure the batteries have been inserted correctly into the remote control. o try another channel, it could be station trouble. poor or no picture, good sound o adjust picture in the video menu (page 15). o adjust brightness in the video menu (page 15). o check the antenna and/or cable connections (page 3). good picture, no sound o press so that muting disappears from the screen (page 11). o check your audio settings. your tv may be set to sap (page 16). no color o adjust color in the video menu (page 15). only snow appears on the screen o check the cable setting in the set up menu (page 20). o check the antenna and/or cable connections (page 3). o make sure the channel selected is currently broadcasting. dotted lines or stripes o adjust the antenna. o move the tv away from other electronic equipment. some electronic equipment can create electrical noise, which can interfere with tv reception. double images or ghosts o check your outdoor antenna or call your cable service. cannot receive higher number channels (uhf) when using an antenna o make sure cable is set to off in the set up menu (page 20). o use auto program to add channels that are not presently in the memory (page 20). 33 other information if, after reading these operating instructions, you have additional questions related to the use of your sony television, please call our direct response center at 1-800-222-sony (7669) (u.s. residents only). (416) 499-sony (7669) (canadian residents only). cable stations dont seem to work o make sure cable is set to on in the set up menu (page 20). o use auto program to add channels that are not presently in the memory (page 20). remote control does not operate o batteries could be weak. replace them (page 2). o move the tv 3-4 feet away from fluorescent lights. the tv needs to be cleaned o clean the tv with a soft dry cloth. never use strong solvents such as thinner or benzine, which might damage the finish of the cabinet. lost password for parental control o in the password screen, enter the following master password: 4357. after using the master password, you must create a new password. free datasheet http:// 14 KV-24FV10/25fv10/25fv10c section 2 disassembly 2-1. rear cover removal 2-2. a board removal 2-3. service position rear cover seven screws (+bvtp 4x16) two screws (+bvtp 3x12) c board a board g board v board c board a board g board v board free datasheet http:// 15 KV-24FV10/25fv10/25fv10c coated earth ground strap 2-4. picture tube removal warning: before removing the anode cap high voltage remains in the crt even after the power is disconnected. to avoid electric shock, discharge crt before attempting to remove the anode cap. short between anode and crt coated earth ground strap. a removal procedures how to handle an anode cap warning: high voltage remains in the crt even after the power is disconnected. to avoid electrical shock, discharge the crt before attempting to remove the anode cap. short between anode and coated earth ground strap of crt. note: after removing the anode, short circuit the anode of the picture tube and the anode cap to either the metal chassis, crt shield, or carbon painted on the crt. 1 do not use sharp objects which may cause damage to the surface of the anode cap. 3 do not force turn the foot of the rubber cover. this may cause the shatter-hook terminal to protrude and damage the rubber. 2 to avoid damaging the anode cap, do not squeeze the rubber covering too hard. a material fitting called a shatter-hook terminal is built into the rubber. 2 use your thumb to pull the rubber cap firmly in the direction indicated by arrow b . 3 when one side of the rubber cap separates from the anode button, the anode cap can be removed by turning the rubber cap and pulling it in the direction of arrow c . 1 turn up one side of the rubber cap in the direction indicated by arrow a . b anode button c anode cap removal g board a board cushion degaussing coil neck assy. deflection yoke anode cap c board picture tube tension spring (b) tuner v board speaker speaker tapping screw free datasheet http:// 16 KV-24FV10/25fv10/25fv10c section 3 set-up adjustments 3-1. beam landing before beginning adjustment procedure: 1. degauss the entire screen. 2. feed in the white pattern signal. adjustment procedure 1. input a raster signal with the pattern generator. 2. loosen the deflection yoke mounting screw and set the purity control to the center as shown below. purity control 3. turn the raster signal of the pattern generator to green. 4. move the deflection yoke backward and adjust the purity control so that green is in the center and red and blue are at the sides evenly. blue red green 5. move the deflection yoke forward and adjust so that the entire screen becomes green. 6. switch over the raster signal to red and blue and confirm the condition. 7. when the position of the deflection yoke is determined, tighten it with the deflection yoke mounting screw. 8. if landing at the corner is not right, adjust by using the disk magnets. b a cd d b c purity control corrects this area disk magnets or rotatable disk magnets correct these areas (a-d) deflection yoke positioning corrects these areas a the following adjustments should be made when a complete realignment is required or when a new picture tube is installed. these adjustments should be performed with rated power supply voltage unless otherwise noted. set the controls as follows unless otherwise noted. video mode: standard picture control: ............... normal brightness control ......... normal perform the adjustments in order as follows: 1. beam landing 2. convergence 3. focus 4. screen (g2) 5. white balance note: test equipment required: ? color bar pattern generator ? degausser ? dc power supply ? digital multimeter free datasheet http:// 17 KV-24FV10/25fv10/25fv10c 3-2. convergence before starting convergence adjustments: 1. perform focus, v.lin and v.size adjustments. 2. set brightness control to minimum. 3. feed in dot pattern. vertical static convergence 1. adjust v.stat magnet to converge red, green and blue dots in the center of the screen. (vertical movement adjust v.stat rv to converge.) b g r center dot r g b v.stat magnet rv1750 v.stat 2. tilt the v.stat magnet and adjust static convergence to open or close the v.stat magnet. when the v.stat magnet is moved in the direction of arrows a and b, red, green, and blue dots move as shown below: a b b b g r a b b g r a b g r r g b b r g b b b a r g b (1) (3) (2) horizontal static convergence if the blue dot does not converge with the red and green dots, perform the following: 1. move bmc magnet (a) to correct insufficient h. static convergence. 2. rotate bmc magnet (b) to correct insufficient v. static convergence. 3. after adjusting the bmc magnet, repeat beam landing adjustment. purity v. s tat bmc magnet b a bmc magnet dynamic convergence adjustment before performing this adjustment, perform horizontal and vertical static convergence adjustment. 1. slightly loosen deflection yoke screw. 2. remove deflection yoke spacers. 3. move the deflection yoke for best convergence, as shown below: rgb bgr rgb r r r g b g b g b rg b bgr r g b r g b bgr rgb 4. tighten the deflection yoke screw. 5. install the deflection yoke spacers. free datasheet http:// 18 KV-24FV10/25fv10/25fv10c tlh plate adjustment ? input crosshatch pattern ? adjust picture quality to standard, picture and brightness to 50%, and other to standard. ? adjust the horizontal convergence of red and blue dots by tilting the tlh plate on the deflection yoke. tlh plate ych rv1750 v.stat xcv c board v board tlv (tlv) b r r b (r)(b) (b)(r) tlh+ tlh- 1. adjust xcv core to balance x axis. 2. adjust ych vr to balance y axis. 3. adjust vertical red and blue convergence with v.tilt (tlv vr.) perform adjustments while tracking items 1 and 2. screen-corner convergence 1. affix a permalloy assembly corresponding to the misconverged areas. b a cd a b d a-d: screen-corner misconvergence c 3-3. focus 1. adjust focus control for best picture. focus (fv) screen (g2) 3-4. screen (g2) 1. input a dots pattern. 2. set the picture and brightness controls at minimum and color control at normal. 3. adjust sbrt, gcut, bcut in service mode with an oscilloscope as shown below so that voltages on the red, green, and blue cathodes are 170 vdc. pedestal 170 vdc ground 4. observe the screen and adjust screen (g2) vr in fbt to obtain the faintly visible background of dot signal. free datasheet http:// 19 KV-24FV10/25fv10/25fv10c 3-5. method of setting the service adjustment mode service mode procedure 1. standby mode (power off). 2. display channel 5 sound volume power + on the remote commander (press each button within a second). service adjustment mode in 1. the crt displays the item being adjusted. service hsiz 0 disp. (item) item data 2. press or on the remote commander to select the item. 3. press or on the remote commander to change the data. 4. press then to save into the memory. service adjustment mode memory turn set off then on to exit service adjustment mode. service write green red muting enter 3-6. white balance adjustments 1. input an entire white signal with burst. 2. set to service adjustment mode. 3. set dcol to 0. 4. set the picture and brightness to minimum. 5. adjust with sbrt if necessary. 6. select gcut and bcut with and . 7. adjust with and for the best white balance. 8. set picture and brightness to maximum. 9. select gdrv and bdrv with and . 10. adjust with and for the best white balance. 11. reset dcol to 1. 12. to write into memory, press then . free datasheet http:// 20 KV-24FV10/25fv10/25fv10c section 4 safety related adjustments 4-1. r582 and r584 confirmation method (hv hold-down confirmation) and readjustments the following adjustments should always be performed when replacing the following components which are marked with on the schematic diagram: a board: dy, crt, c507, c520, c573, c574, c575, d572, d573, d574, ic521, ic301, r578, r579, r582, r583, r584, r585, r586, r587, t504, t505 preparation before confirmation 1. using a variac, apply ac input voltage: 120 2 vac (or 120-220 2 vac for kv-25fv10/10c only.) 2. turn the power switch on. 3. input a white signal and set the picture and brightness controls to maximum. 4. confirm that the voltage between c574 (+) or tp503 and ground is more than 105 vdc. hold-down operation confirmation 1. connect the current meter between pin 11 of the fbt (t505) and the pwb land where pin 11 would normally attach. (see figure 1 on the next page.) 2. input a dot signal and set picture and brightness to minimum: iabl = 100 100 m a. 3. confirm the voltage of a board tp-600 is 135 3 vdc. 4. connect the digital voltmeter and the dc power supply via diode 1ss119 to c574 (+) and ground. (see figure 1 on the next page.) 5. increase the dc power voltage gradually until the picture blanks out. 6. turn dc power source off immediately. 7. read the digital voltmeter indication (standard: 138.0 .3 vdc). 8. input a white signal and set picture and brightness to maximum: iabl = 1650 100 m a. 9. repeat steps 4 to 7. hold-down readjustment if the setting indicated in step 2 of hold-down operation confirmation cannot be met, readjustment should be performed by altering the resistance value of r582 and/or r584 components marked with . + iabl abl t505 fbt range - ammeter 3.0 ma dc a 4-2. b+ voltage confirmation and adjustment note: the following adjustments should always be performed when replacing the following components, which are marked with on the schematic diagram on the g board. g board: ic601, ph600 1. using a variac, apply ac input voltage: 130 2 vac (or 120-220 2 vac for kv-25fv10/10c only.) 2. input a dot signal. 3. set the picture and brightness controls to minimum. 4. confirm that the voltage of a board tp-600 is 135 3 vac. 5. if step 3 is not satisfied, replace the components listed above, then repeat steps 1C3. free datasheet http:// 21 KV-24FV10/25fv10/25fv10c digital multimeter tp600 + C 1ss119 ammeter 3ma dc range t505 fbt abl11 c574 digital multimeter + C power supply + C + C a figure 1 r582 r584 free datasheet http:// 22 KV-24FV10/25fv10/25fv10c 5-1. setting the service adjustment mode 1. standby mode (power off). 2. display channel 5 sound volume power + on the remote commander (press each button within a second). service adjustment mode on 1. the crt displays the item being adjusted. service hsiz 0 disp. (item) item data 2. press or on the remote commander to select an item. 3. press or on the remote commander to change the data. 4. press then to save into the memory. service adjustment mode memory service write green red muting enter 1. press then on the remote commander to initialize. service reset 2. turn set off then on to exit service adjustment mode. section 5 circuit adjustments carry out step 1 when adjusting ids 0C4 and when replacing and adjusting ic003. 5-2. memory write confirmation method 1. after adjustment, remove the power plug from the ac outlet, then plug it in again. 2. turn the power switch on and set to service mode. 3. call the adjusted items again to confirm they were adjusted. 5-3. adjustment buttons and indicators muting power muting power vtr/dvd sat/cable vtr/dvd sat/cable tv function tv/vtr sleep display system off tv display 1 4 8 3 5 6 enter 1 2 3 4 5 6 9 8 7 0 jump enter tv/sat guide menu reset vol ch + + C C volume code set rm-y168 picture mode mts/sap electrical adjustments by remote commander use the remote commander (rm-y168) to perform the circuit adjustments in this section. note: test equipment required: ? pattern generator ? frequency counter ? digital multimeter ? audio oscillator free datasheet http:// 23 KV-24FV10/25fv10/25fv10c adjustment items no. item function data range initial data average data ntsc palm/ pa l n v i de o 1 hsiz horizontal size adj. 0-63 35 35 38 2 hpos horizontal pos. adj. 0-63 33 33 21 3 vbow vrt line bowing adj. 0-15 5 5 9 4 vang vrt line bow slant adj. 0-15 7 7 5 5 trap horiz. trapezoid adj. 0-15 7 7 7 6 pamp horiz. pin distortion adj. 0-63 7 7 32 7 upin upper pin distortion adj. 0-63 36 36 39 8 lpin lower pin distortion adj. 0-63 36 36 39 9 blk0 vertical blanking on/off 0, 1 0 0 10 vmlv velocity modulation level 0-3 palette mode controls this register 2 11 agn2 aging 2 0, 1 0 0 12 refp reference pulse position 0, 1 0 0 13 vblk vertical blanking on/off 0, 1 0 0 14 jpsw 0, 1 0 0 15 vsiz vertical size adj. 0-63 47 47 49 16 vpos vertical position adj. 0-63 32 32 32 17 vlin vertical linearity adj. 0-15 6 6 18 scor vertical s correction adj. 0-15 8 8 19 vzom 16:9 crt z mode on/off 0, 1 0 0 20 eht vrt hi-volt. correction 0-15 6 6 21 asp aspect ratio control 0-63 47 47 22 scrl 16:9 crt z mode trans scroll 0-63 31 31 23 hblk horizontal blanking on/off 0, 1 1 1 24 lblk left blanking adj. 0-15 12 12 25 rblk right blanking adj. 0-15 5 5 26 vusn v saw waveform compress 0, 1 0 0 27 hdw h. drive pulse width 0, 1 1 1 28 ewdc parabola ew/dc adj. 0, 1 0 0 29 lvln lower screen btm vrt lin adj. 0-15 0 0 30 uvln upper screen btm vrt lin adj. 0-15 0 0 31 rdrv r output drive control 0-63 31 36 32 gdrv g output drive control 0-63 25 26 33 bdrv b output drive control 0-63 25 25 34 rcut r output cutoff control 0-15 10 8 35 gcut g output cutoff control 0-15 7 6 36 bcut b output cutoff control 0-15 6 7 37 dcol dynamic color on/off 0, 1 0 1 38 shue sub hue 0-31 14 15 39 scol sub color 0-31 14 14 15 40 sbrt sub brightness 0-31 15 15 41 ron r output on/off 0, 1 1 1 42 gon g output on/off 0, 1 1 1 43 bon b output on/off 0, 1 1 1 44 axpl axis pal 0, 1 0 0 45 axnt axis ntsc 0, 1 0 0 46 cbpf chroma bpf on/off 0, 1 0 1 47 ctrp y trap filter on/off 0, 1 1 1 48 coff color on/off 0, 1 0 0 49 koff set color killer 0, 1 0 0 50 sshp sub sharpness 0-15 6 7 51 shpf sharpness circuit f0 0, 1 1 1 52 prel pre/ovr shoot switching 0, 1 1 1 1 53 y-dc dc trans ratio switching 0, 1 1 1 54 gamm gamma correction amnt 0-3 palette mode controls this register 1 55 ablm abl mode switching 0, 1 1 1 56 vth abl cd vht switching 0, 1 1 1 57 ydel y delay time control 0-15 7 7 58 ncol no color id 0, 1 1 1 59 fsc fsc out on/off 0, 1 1 1 60 k-id killer id control sw 0, 1 0 0 61 hosc h vco oscillation freq 0-15 7 7 62 vss v sync slice level 0, 1 1 0 free datasheet http:// 24 KV-24FV10/25fv10/25fv10c 63 hss h sync slice level 0, 1 0 0 64 hmsk 0, 1 0 0 65 vtms select signal vtim pin 0-3 0 0 66 cdmd v cnt dwn mode switching 0-3 0 3 0 67 afc afc loop gain switching 0-3 0 0 0 68 fifr field frequency 0-3 3 1 3 69 sbal sub balance 0-15 7 7 70 sbas sub bass 0-15 9 9 71 stre sub treble 0-15 9 9 72 bbel bbe low 0-15 12 12 73 bbeh bbe high 0-15 9 9 74 srnd surround 0-63 13 13 75 bbe bbe on/off 0, 1 1 1 76 disp o.s.d display position 0-63 22 15 77 trot tilt correction 0-63 31 31 78 hclw horizontal count lower limit 0-127 16 16 16 79 hchg horizontal count high limit 0-127 64 64 64 80 abl0 0, 1 0 1 81 abl1 0-7 0 7 82 sysc color system 0-7 6 6 83 venh vertical enhancement 0-7 palette mode controls this register 4 84 cbpc 0, 1 0 0 85 bycf 0, 1 0 0 86 kilc 0, 1 0 0 87 ldot 0, 1 0 0 88 core 0, 1 0 0 89 id0 0-255 201 see id map 90 id1 0-255 19 see id map 91 id2 0-255 173 see id map 92 id3 0-255 43 see id map 93 id4 0-255 251 see id map 94 id5 0-255 0 see id map 95 id6 0-255 64 see id map no. item function data range initial data average data ntsc palm/ pa l n v i de o service id0 25 notes: no. 1C95 show the order that each adjustment mode may be selected while in service mode. data range shows the range of possible settings for each adjustment mode. initial data shows the standard settings for each adjustment mode. free datasheet http:// 25 KV-24FV10/25fv10/25fv10c feature id map model dest. id-0 id-1 id-2 id-3 id-4 id-5 id-6 KV-24FV10 us 217 19 173 11 219 0 64 KV-24FV10 cnd 217 19 173 43 219 0 64 kv-25fv10 e 145 19 173 83 251 0 64 kv-25fv10c e 145 19 173 83 251 0 64 5-4. a board adjustments h. frequency (free run) check 1. input a tv mode (rf) with no signal. 2. connect a frequency counter to base of q501 (tp-500 h. drive). 3. check h. frequency for 15735 200 hz. v. frequency (free run) check 1. select video 1 with no signal input. 2. set the conditions for a standard setting. 3. connect the frequency counter on the a board to tp-508 (v out) or cn 501 pin (v dy+) and ground. 4. check that v. frequency shows 60 4 hz. sub contrast adjustment (rdrv) 1. input a color-bar signal and set the level to 75%. 2. in standard mode, set picture to maximum, color to minimum, and brightness to center. 3. activate the service adjustment mode. 4. set both gon and bon items. using and ; set each to the following values. leave ron set to 1. service ron 1 1: on 0: off r on: on (1) g on: off (0) b on: off (0) 5. select the item dcol item and set it to 0. 6. connect an oscilloscope probe to c board, cn1752 pin tp47r (red out). 7. select rdrv with and . 8. adjust the value of rdrv with and for 1.85 0.05 vp-p. black white 1.85 0.05 vp-p 9. reset the item dcol to 1. 10. reset gon and bon values to 1. r on: on (1) g on: on (1) b on: on (1) 11. reset picture, color, and bright to normal values: picture: max color: center bright: center 12. press then to save into the memory. display position adjustment (disp) 1. input a color-bar signal. 2. set to service adjustment mode. 3. select disp with and . 4. adjust values of disp with and to adjust characters to the center. 5. write to memory by pressing then . 6. check to see if the text is displayed on the screen. service disp 15 sub bright adjustment (sbrt) 1. input a monoscope signal. 2. activate the service adjustment mode. 3. set the picture and brightness to minimum. 4. select the sbrt item with and . 5. adjust the values of sbrt with and to obtain a faintly visible crosshatch. 6. press then to save into the memory. free datasheet http:// 26 KV-24FV10/25fv10/25fv10c sub hue, sub color adjustment (shue, scol) 1. input a color-bar signal. 2. activate the service adjustment mode. 3. select the dcol item and set the value to 0. 4. connect an oscilloscope probe to c board, cn1752 pin or tp47b (blue out). 5. select the shue and scol item with and . 6. while showing the shue item, adjust the waveform with and until the second and third bars show the same level (v2 = v3 0.15 vp-p). 7. while showing the scol item, adjust the waveform with and until the first and fourth bars show the same level (v1 = v4 0.15 vp-p). v1 v2 v3 v4 8. select the dcol item and reset to 1. 9. press then to save into the memory. v. size adjustment (vsiz) 1. input a crosshatch signal. 2. activate the service adjustment mode. 3. select the vsiz item with and . 4. adjust value of vpos with and for the best vertical center. 5. press then to save into the memory. v. center adjustment (vpos) perform this adjustment after performing h. frequency (free run) check. 1. input a crosshatch signal. 2. activate the service adjustment mode. 3. select the vpos item with and . 4. adjust value of vpos with and for the best vertical center. 5. press then to save into the memory. h. center adjustment (hpos) perform this adjustment after performing h. frequency (free run) check. 1. input a crosshatch signal. 2. activate the service adjustment mode. 3. select the hpos item with and . 4. adjust the value of hpos with and for the best horizontal center. 5. press then to save into the memory. h.size adjustment (hsiz) 1. input a monoscope signal. 2. activate the service adjustment mode. 3. select hsiz with and . 4. adjust with and for the best horizontal size. 5. press then to save into the memory. v. linearity (vlin), v correction (vsco), pin amp (pamp) and horizontal trapezoid (trap) adjustments 1. input a crosshatch signal. 2. activate the service adjustment mode. 3. select vlin, vsco, pamp, and ppha with with and . 4. adjust with and for the best horizontal size. 5. press then to save into the memory. v linearity (vlin) v correction (vsco) pin amp (pamp) horizontal trapezoid (trap) free datasheet http:// 27 KV-24FV10/25fv10/25fv10c v angle (vang), v bow (vbow), upper pin (upin) and low pin (lpin) adjustments 1. input a crosshatch signal. 2. activate the service adjustment mode. 3. select vang, vbow, upin, and lpin with and . 4. adjust with and for the best picture. 5. press then to save into the memory. v angle (vang) v bow (vbow) upper pin (upin) low pin (lpin) service adjustment mode memory 1. change the value of the dcol item to 1. 2. after completing all adjustments, press then . read from memory service read green red enter 0 free datasheet http:// 28 KV-24FV10/25fv10/25fv10c notes: free datasheet http:// KV-24FV10/25fv10/25fv10c notes: free datasheet http:// KV-24FV10/25fv10/25fv10c notes: free datasheet http:// 30 31 32 29 section 6 diagrams KV-24FV10/25fv10/25fv10c 6.1 block diagram 6-3. printed wiring boards and schematic diagrams ? all capacitors are in m f unless otherwise noted. pf: mm f 50 wv or less are not indicated except for electrolytic and tantalums. ? all electrolytics are 50v unless otherwise specified. ? indication of resistance, which does not have one for rating electrical power, is as follows: pitch: 5mm rating electrical power 1/4w (chip: 1/10w) ? all resistors are in ohms. k w = 1000 w m w = 1000k w ? : nonflammable resistor ? : fusible resistor ? : internal component ? : panel designation and adjustment for repair ? : earth-ground ? : earth-chassis ? all variable and adjustable resistors have characteristic curve b, unless otherwise noted. ? the components identified by in this manual have been carefully factory-selected for each set in order to satisfy regulations regarding x-ray radiation. should replacement be required, replace only with the value originally used. ? when replacing components identified by , make the necessary adjustments indicated. if results do not meet the specified value, change the component identified by and repeat the adjustment until the specified value is achieved (refer to safety related adjustments on page 20). ? when replacing parts shown in the table below, be sure to perform the related adjustments. part replaced ( ) adjustment ( ) hv hold-down (r582, r584) b+ voltage confirmation dy, crt, c507, c520, c573, c574, c575, d572, d573, d574, ic521, ic301, r578, r579, r582, r583, r584, r585, r586, r587, t504, t505..................................a board ic601, ph600...................g board ? all voltages are in volts ? voltage is dc with respect to ground unless otherwise noted. ? readings are taken with a 10m w digital multimeter. ? readings are taken with a color-bar signal input. ? voltage variations may be noted due to normal production tolerance. ? circled numbers are waveform references. ? * : cannot be measured ? : b + line ? ----- :b - line ? : signal path reference information resistor : rn metal film : rc solid : fprd non flammable carbon : fuse non flammable fusible : rw non flammable wirewound : rs non flammable metal oxide : rb non flammable cement : adjustment resistor coil : lf-8l micro inductor capacitor : ta tantalum : ps styrol : pp polypropylene : pt mylar : mps metalized polyester : mpp metalized polypropylene : alb bipolar : alt high temperature : alr high ripple the components identified by shading and mark are critical for safety. replace only with the part number specified. the symbol (displayed on component side of the circuit board) indicates fast operating fuse. replace only with fuse of the same rating as marked. les composants identifis per un tram et une marque sont critiques pour la scurit. ne les remplacer que par une pice portant le numro spcifi. le symbole indique une fusible a action rapide. doit etre remplacee par une fusible de meme yaleur, comme marque. note: v board c board a board g board 6.2 circuit board locations 853 1 a block diagram.p65 3/3/99, 9:55 am 1 free datasheet http:// a b c d e f g h 33 34 35 36 ic001 ic002 8 4.2 18 1.1 22 3.6 12 4.0 pin volt pin volt 9 4.9 19 3.1 23 4.1 13 .1 1 1.0 1 7.4 10 4.2 20 2.6 24 1.7 14 7.1 2 4.8 2 0 11 4.9 21 1.8 25 4.0 15 14.2 3 0 3 5.4 12 0 22 1.4 26 3.1 16 0 4 .3 4 0 13 4.9 23 1.5 27 5.2 17 7.1 5 4.9 5 0 14 4.2 24 1.7 28 0 ic405 6 0 65.0 15 0 25.1 ic402 pin volt 7 0 7 0 16 4.2 26 4.3 pin volt 1 9.0 8 0 8 5.0 17 0 27 4.6 1 0 2 4.5 90 ic003 18 0 28 4.6 2 0 3 4.5 10 0 pin volt 19 5.0 29 0 3 0 4 4.5 11 0 1 0 20 5.0 30 4.6 4 4.7 5 4.3 12 4.9 2 0 21 0 31 4.6 5 4.5 6 0 13 0 3 0 22 4.2 32 4.6 6 4.5 7 0 14 5.0 4 0 23 5.3 33 8.9 7 4.5 8 4.3 15 4.9 5 4.9 24 4.2 34 5.0 8 4.5 9 4.5 16 0 6 4.9 25 4.2 35 5.0 9 4.5 10 4.5 17 - 0.4 7 0 26 4.2 36 0 10 4.5 ic521 18 4.9 8 5.0 27 4.9 37 4.6 11 4.5 pin volt 19 5.0 ic004 28 0 38 5.3 12 4.5 1 .1 20 1.8 pin volt 29 4.9 39 5.3 13 0 2 3.5 21 0.2 1 4.9 30 0 40 0 14 2.0 3 2.4 22 2.2 2 5.0 31 4.9 41 5.2 15 9.0 4 0 23 0 3 0 32 4.2 42 7.5 16 9.0 5 9.3 24 2.4 ic010 33 4.2 43 5.2 17 0 6 10.2 25 2.4 pin volt 34 5.3 44 9.0 18 4.9 7 0 26 0 1 3.0 35 0 45 5.4 19 2.0 8 13.1 27 4.9 2 4.9 36 4.3 46 4.7 20 0 ic541 28 0 3 2.9 37 3.6 47 1.8 21 4.5 pin volt 29 0 4 0 38 9.0 48 .1 22 4.5 1 1.8 30 5.0 5 0 39 3.5 ic302 23 4.5 2 13.1 31 5.0 6 5.0 40 4.2 pin volt 24 4.5 3 - 13.6 32 .1 7 2.2 41 5.4 1 3.6 25 4.5 4 0 33 5.0 8 0 42 4.2 2 0 26 4.5 5 .3 34 2.4 ic202 ic301 3 2.4 27 4.5 6 13.2 35 5.0 pin volt pin volt 4 5.1 28 4.5 7 1.8 36 5.0 1 7.1 1 3.4 5 1.5 29 4.5 ic603 37 5.0 2 7.1 2 5.2 6 1.4 30 4.5 pin volt 38 5.0 3 7.1 3 1.6 7 0 31 3.7 i 12.8 39 5.0 4 0 4 5.2 8 5.0 32 4.5 o 9.0 40 0 5 7.1 5 4.9 9 5.0 ic404 g0 41 0 6 7.1 6 4.4 10 0 pin volt 4 12.8 42 .1 7 7.1 7 3.3 11 0 1 7.1 all voltages are in v 43 5.0 8 14.3 8 5.0 12 0 2 0 44 .1 ic203 9 5.2 13 0 3 14.2 45 0 pin volt 10 0 14 0 4 7.1 46 0 1 4.9 11 4.0 15 5.1 5 3.7 47 0 2 4.2 12 2.4 16 0 6 0 48 0 3 4.9 13 3.6 17 0 7 4.0 49 0 4 4.2 14 3.5 18 5.2 8 4.0 50 0 5 4.9 15 5.5 19 2.5 9 6.9 51 0 6 6.1 16 7.6 20 1.9 10 4.0 52 0 7 4.9 17 .7 21 2.5 11 4.0 a board waveforms a board ic voltage list 12345678910111213141516171819 KV-24FV10/25fv10/25fv10c 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 1.1v p-p (v) 2.1v p-p (v) 4.7v p-p (v) 3.5v p-p (h) 1.1v p-p (v) 712mv p-p (v) 869mv p-p (v) 2.1v p-p (v) 838mv p-p 2v p-p (v) 1.5v p-p (v) 1.4v p-p (v) 5.9v p-p (v) 5.4v p-p (v) 2.9v p-p (v) 3.0v p-p (v) 3.1v p-p (v) 1.6v p-p (v) 1.4v p-p (v) 738mv p-p 2.8v p-p (v) 201.6v p-p (v) 55.9v p-p 1231v p-p (v) 29.5v p-p (v) 53.8v p-p (v) 30.5v p-p (v) 54.1v p-p (v) 214.1v p-p a board schematic diagram (top) a board (top) 853 2 a schematic top.p65 3/5/99, 11:54 am 1 free datasheet http:// 12345678910111213141516171819 37 38 39 40 a board schematic diagram (bottom) h i j k l m n [tuning control, y/c/j, deflection, tuner/if, audio, mts] note: portions of the circuit marked as shown are high voltage areas. use care to prevent electric shocks during inspection or repair. KV-24FV10/25fv10/25fv10c a board mark (*) list ref no. loc. KV-24FV10/25fv10 kv-25fv10c r540 j-17 2.2k jw (10mm) a board location list bce q001 5.2 .7 4.9 q002 4.52 8.97 3.89 q081 .4 0 .9 q101 0 7.2 0 q200 .7 0 0 q201 .7 0 0 q203 5.6 0 .1 q204 0 .1 0 q286 4.5 0 5.2 q287 5.3 0 5.9 q288 7.4 9.0 6.8 q300 .6 .7 0 q302 4.4 9.0 3.8 q305 3.2 0 3.8 q306 1.6 0 2.3 q307 1.5 0 2.1 q308 1.4 0 2.0 q309 3.6 1.8 3.7 q310 3.6 0 3.7 q350 3.9 0 4.6 q351 2.4 8.1 1.8 q352 8.1 2.6 8.7 q353 2.7 0 3.3 q354 4.1 0 4.7 q355 2.4 8.1 1.8 q356 8.1 2.7 8.7 q357 2.7 0 3.3 q358 3.5 8.9 2.9 q359 3.2 0 3.8 q360 4.7 0 5.3 q390 5.0 9.0 4.3 q401 .6 0 0 q501 -.8 97.7 0 q502 -.2 135.6 0 q521 .1 3.4 0 q522 .1 21.1 0 q555 2.0 9.0 2.2 q571 134.7 10.7 134.5 q604 .1 4.1 0 q650 5.8 9.0 5.2 q870 .3 3.9 0 all voltages are in v a board transistor voltage list diode d250 g-2 d523 e-4 ic ic541 d-3 q288 g-4 q555 f-7 d001 e-4 d251 g-2 d541 e-3 ic001 g-9 ic603 d-9 q300 f-8 q571 c-2 d002 h-10 d252 g-3 d552 c-4 ic002 h-10 transistor q301 e-8 q604 f-6 d003 h-8 d253 g-2 d561 d-3 ic003 h-9 q001 g-9 q302 f-4 q650 g-6 d004 h-8 d254 g-2 d562 d-3 ic004 d-11 q002 h-4 q305 f-4 q870 g-8 d005 h-11 d255 h-1 d571 b-1 ic010 f-9 q081 f-8 q306 f-8 d006 b-11 d302 g-8 d504 b-5 ic202 e-2 q082 f-8 q307 f-8 d007 d-10 d501 a-5 d572 e-2 ic203 f-3 q101 h-3 q308 f-8 d008 b-10 d502 c-5 d573 e-2 ic301 g-7 q200 e-1 q309 f-7 d009 g-10 d503 c-5 d574 e-2 ic302 g-5 q201 e-1 q310 f-8 d010 g-9 d504 b-5 d581 e-3 ic402 e-9 q203 d-9 q350 f-5 d205 h-2 d520 c-6 d650 g-6 ic404 b-9 q204 e-7 q351 f-6 d207 f-2 d521 d-5 d800 b-7 ic405 e-10 q286 g-4 q352 f-6 d208 c-9 d522 e-4 d871 f-8 ic521 e-3 q287 g-3 q354 f-7 1234567891011 a b c d e f g h 853 3 a schematic bottom.p65 3/5/99, 11:59 am 1 free datasheet http:// 41 42 43 44 1234567891011121314 15 123456789 a b c d e note: portions of the circuit marked as shown are high voltage areas. use care to prevent electric shocks during inspection or repair. g board schematic diagram [power supply] diode d614 a-7 ic d601 e-2 d615 c-8 ic601 b-6 d602 c-2 d617 b-9 ic602 d-7 d603 a-4 d618 d-5 transistor d604 a-5 d619 d-5 q601 a-4 d605 c-4 d620 e-1 q602 a-5 d606 b-4 d630 a-9 q603 a-7 d607 a-5 d631 d-3 q605 d-5 d608 a-4 d632 d-4 q606 d-4 d609 c-7 d633 d-6 q607 d-1 d610 b-6 d634 d-5 q610 d-1 d611 b-7 d635 d-5 q644 d-1 d612 d-1 d637 d-4 d613 a-7 d638 d-5 bce q601 - 58.1 - 58.2 - 58.5 q602 - 57.6 - 40.8 - 58.0 q603 - 40.8 - 54.9 - 40.8 q606 .5 .8 .1 q607 .7 .1 0 q610 0 .7 0 q644 0 13.6 0 gds q605 1.8 154.3 .1 all voltages are in v ic601 pin volt 1 - 56.3 2 - 58.0 3 101.4 4 - 41.0 5 - 58.1 ic602 pin volt 1 134.9 2 123.1 30 all voltages are in v KV-24FV10/25fv10/25fv10c ref no. loc. KV-24FV10 kv-25fv10/10c c600 f-2 0.47 125v 0.47 300v c607 e-4 0.47 125v 0.47 300v c613 e-7 680 250v 560 400v c616 c-8 # 0.022 400v c617 d-8 # 220p 1kv c636 e-11 .0047 250v # c637 e-11 .0047 250v # c663 d-2 .22 125v .22 300v d609 d-8 # ru-1p f600 g-2 6.3a 125v 6.3a 250v ic601 d-9 str-f6626 str-f6656 jw632 e-4 # 10mm jw633 f-4 # 10mm jw634 e-4 # 10mm jw635 d-4 # 10mm jw636 d-3 7.5mm # jw637 d-3 7.5mm # jw638 d-2 # 5mm jw639 d-2 # 5mm r600 f-5 # 8.2m r601 f-4 4.7m # r633 e-7 390k 270k r634 e-7 jw 5mm 270k r637 d-8 # 100k r646 e-7 15mm 5.6k r672 e-8 15mm 5.6k r674 e-7 15k 5.6k t601 e-4 1-426-717-11 # t602 f-3 1-431-838-11 1-426-717-11 t603 d-11 1-433-806-11 1-433-807-11 thp601 d-3 1-809-539-11 1-803-540-11 vdr600 g-2 1-803-585-11 1-803-587-11 #: not mounted g board mark (*) list g board location list g board ic voltage list g board transistor voltage list a board (bottom) g board a b c d e f g h i 853 4 g board schematic.p65 3/5/99, 12:06 pm 1 free datasheet http:// 45 46 47 1234 bce q961 2.4 9.0 1.8 q962 2.4 5.5 1.8 q963 134.4 83.7 134.8 q965 .7 83.7 .1 q967 6.2 9.0 5.9 q968 5.5 0 5.9 all voltages are in v 1 23456 a b c d e f g 1 23456 7 8 9 10 1234 5 [velocity modulation] [crt drive, rgb drive] c board waveforms c board schematic diagram note: portions of the circuit marked as shown are high voltage areas. use care to prevent electric shocks during inspection or repair. a b c d e a b c v board schematic diagram KV-24FV10/25fv10/25fv10c 1 2 3 132.8v p-p (h) 135.9v p-p (h) 140.6v p-p (h) ic1707 pin volt 13.8 24.5 34.5 40 56.1 66.1 76.1 89.0 ic1751 pin volt 12.3 22.2 32.1 40 53.7 6 205.0 7 145.0 8 141.0 9 132.0 all voltages are in v c board ic voltage list v board transistor voltage list v c boards a b c d e 853 5 cv boards.p65 3/5/99, 12:10 pm 1 free datasheet http:// chroma sw y sw monitor sw video sw |
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