Toshiba 32HF72 Service Manual Download

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FILE NO. 023-200213

SERVICE MANUAL

– SUMMARY –

N2PS Chassis

COLOR TELEVISION

PUBLISHED IN JAPAN,

Jul., 2002

32HF72

32HFX72

(TAC0232)

32HF72, 32HFX72 are the same as 36HFX72 except for the parts tabled on back of this sheet.
Use this service manual together with the service manual of 36HFX72, 36HF72 (File No. 020-
200206).

(TAC0233)

Summary of Contents for 32HF72

Page 1: ...LOR TELEVISION PUBLISHED IN JAPAN Jul 2002 So 32HF72 32HFX72 TAC0232 32HF72 32HFX72 are the same as 36HFX72 except for the parts tabled on back of this sheet Use this service manual together with the service manual of 36HFX72 36HF72 File No 020 200206 TAC0233 ...

Page 2: ... 32HF72 CD65 24797100 EL 10 F 20 50V 32HF72 CD66 24797100 EL 10 F 20 50V 32HF72 CS125 24590393 PF 0 039 F 32HF72 K912 23306414 Remote Hand Unit CT 90087 32HF72 L461 23248167 Coil Choke TLN3327AD L901 23200455 Coil Degaussing TSB 2412AT QD41 23000189 IC TA2136N 32HF72 R218 24367333 CF 33k ohm 2 R601 24011822 Chip 8200 ohm 1 20W 32HF72 R602 24011822 Chip 8200 ohm 1 20W 32HF72 R663 24011822 Chip 8200...

Page 3: ...FILE NO 020 200206 SERVICE MANUAL COLOR TELEVISION N2PS Chassis 36HFX72 36HF72 PUBLISHED IN JAPAN Jun 2002 So TAC0231 TAC0230 ...

Page 4: ...VICE MODE 8 ELECTRICAL ADJUSTMENTS 11 CIRCUIT CHECKS 13 CHAPTER 2 SPECIFIC INFORMATIONS SETTING ADJUSTING DATA 14 LOCATION OF CONTROLS 15 PROGRAMMING CHANNEL MEMORY 17 CHASSIS AND CABINET REPLACEMENT PARTS LIST 18 PC BOARDS BOTTOM VIEW 33 TERMINAL VIEW OF TRANSISTORS 42 CIRCUIT BLOCK DIAGRAM 44 SPECIFICATIONS END APPENDIX CIRCUIT DIAGRAM ...

Page 5: ...mp AC Any value exceeding this limit consti tutes a potential shock hazard and must be corrected im mediately WARNING Service should not be attempted by anyone unfa miliar with the necessary precautions on this receiver The fol lowing are the necessary precautions to be observed before servicing this chassis 1 An isolation Transformer should be connected in the power line between the receiver and ...

Page 6: ...e CONTRAST and BRIGHTNESS Controls to the maximum 3 Display built in green raster using the TEST SIGNAL SELECTION function 4 Loosen the clamp screw holding the deflection yoke and remove the rubber Wedges 5 Slide the yoke forward or backward to provide vertical green belt zone in the picture screen 6 Rotate and spread the tabs of the purity magnet See figure 4 around the neck of the picture tube u...

Page 7: ...ing the CENTER CONVERGENCE AD JUSTMENT tighten the tightening ring to fix the mag nets Figure 3 Xv COIL ADJUSTMENT Adjust the Xv coil on the deflection yoke to correct misconvergence at both sides on screen Use a hexagonal tip stick plastic to adjust the core of coil BLU BLU RED RED 6 POLE MAGNETS MOVEMENT 4 POLE MAGNETS MOVEMENT RED BLUE RED BLUE GRN GRN Center Convergence by Convergence Magnets ...

Page 8: ...nter evenly 6 Receive the green raster shift the deflection yoke from a foremost position hitting against the picture tube to a backward position horizontally stop the deflection yoke at a position where it begins to become a green raster and perform accurate marking on the picture tube 7 Shift the deflection yoke further backward and perform accurate marking at a position where the green raster b...

Page 9: ...Blue color or blue mark Insert the correction piece between the picture tube and the deflection yoke Insertion position of correction piece Bonded surface blue green red Parts code 23 948 464 Transparent Bonded surface Adjust VR 1 and minimize the deviation of YH Only 27 30 and 32 Red green blue Red green blue Red green blue Red green blue Adjust VR 2 YHC and minimize the deviation of YH Red green...

Page 10: ...nt menu provides special functions A single horizontal line ON OFF TV ANT VIDEO button on TV Test signal selection TV ANT VIDEO button on Remote Selection of the adjustment items Channel s t on TV or Remote Change of the data value Volume s t on TV or Remote Adjustment menu mode ON OFF MENU button on TV Initialization of the memory QA02 QA04 RECALL Channel s button on TV Initialization of the self...

Page 11: ...he service mode then select any register item 2 Press and hold the RECALL button on the Remote then press the CHANNEL s button on the TV The initialization of QA02 and QA04 has been complated 3 Check the picture carefully If necessary adjust any adjustment item above Perform Programming Channel Memory on the owner s manual CAUTION Never attempt to initialize the data unless QA02 QA04 has been repl...

Page 12: ...rmal BUS line check OK Normal SCL GND or NG SCL GND short circuit SDA GND or NG SDA GND short circuit SCL SDA or NG SCL SDA short circuit BUS line ACK acknowledge check OK Normal Display of Location Number NG Display example QA02 NG H001 NG Q501 NG etc Note The indication of failure place is only one place though failure places are plural When repair of a failure place finishes the next failure pl...

Page 13: ...EIGHT adjustment ITEM ADJUSTMENT PROCEDURE SUB COLOR SCOL SUB TINT TNTC 1 Receive color bar signal from color bar generator 2 Press the RESET button 3 Connect oscilloscope to TP501 on SIG NAL board 4 Adjust the CONTRAST control to the minimum 5 Call up the adjustment mode display then select the item TNTC 6 Adjust the SUB TINT by pressing the VOLUME s or t button to obtain a blue bar to magenta ba...

Page 14: ...advance the data by 9 steps Note Check the vertical picture position is correct WHITE BALANCE RCUT GCUT BCUT GDRV BDRV 1 Adjust the CONTRAST control to the center and BRIGHTNESS control to the maximum 2 Call up the adjustment mode display and press the TV VIDEO button on Remote until the white and black pattern appears on the screen 3 Adjust the following items with the CHANNEL s t and VOLUME s t ...

Page 15: ...is indispensable for the final check in servicing Checking should be done following the steps below 1 Turn the receiver on and press the RESET button 2 Temporarily short TP R and TP X with a jumper wire Raster and sound will disappear 3 The receiver must remain in this state even after removing the jumper wire This is the evidence that the FS circuit is functioning properly 4 To obtain a picture a...

Page 16: ...ICE MODE CHAPTER 2 SPECIFIC INFORMATIONS SAFETY INSTRUCTIONS Item Name of adjustment Item Name of adjustment Preset Table 2 OPTION PROGRESSIVE 4 3 DV 40H 40H 40H 40H 40H 80H 46H 06H 12H 40H 14H 36H 02H 02H 1EH Preset 16H 13H 33H 02H 0CH 3FH 2FH 04H 40H 0FH 19H 17H 24H 1EH PARA CNR TRAP HCP VFC HPS GMPS CPAR PHUE PCNT PCOL PYOF PIOF PQOF E W PARABOLA E W CORNER TRAPEZIUM H CONMPENSATION V F CORRECT...

Page 17: ... Sts VOLUME T S DEMO TV VIDEO Remote sensor POWER ANT 1 OUT ANT 2 ANT 75 S VIDEO VIDEO L MONO AUDIO R VIDEO 2 VIDEO 1 Y PB PR L Y PB PR AUDIO COLOR STREAM HD 2 COLOR STREAM HD 1 R L AUDIO R OUT AUDIO CENTER CHANNEL IN L MONO AUDIO ON OFF VIDEO VAR AUDIO L R R I N I N TV Rear CHANNEL ts Power indicator Audio center Channel IN Variable Audio OUT Video Audio OUT ColorStream HD2 ColorStream HD1 Video ...

Page 18: ... ENTER sets programming menu information stT S selects or adjusts programming menus FAV T S selects your favourite channels Volume st adjusts the volume level EXIT exits programming menus Channel st cycles through programmed channels CH RTN returns to the last viewed channels RECALL displays on screen information MUTE mutes the sound INPUT selects video input source PIP allows access to PIP functi...

Page 19: ...ing TheTVwillautomaticallycyclethroughalltheTVorCABLE channels selected by the TV CABLE function and store active channels in the channel memory 3 When channel programming is complete you will see the message to the right 4 Press CHANNEL s or t to make sure the channel pro gramming has been done properly ADD ERASE function After performing the CH PROGRAM function you can add or erase specific chan...

Page 20: ... 3300PF J C435 24212101 CERAMIC DISC 50V B 100PF K C436 24503041 PLASTIC FILM 63V 0 1UF J C437 24082399 PLASTIC FILM CF92 T 1250VH 1600PF H C439 24503125 PLASTIC FILM 400V 0 075UF J C440 24082592 PLASTIC FILM CF92 T 1800VH 1000PF H C442 24082648 PLASTIC FILM 400V 0 3UF J C443 24082608 PLASTIC FILM 1800VH 4700PF H C444 24082609 PLASTIC FILM 1800VH 5100PF H C445 24095740 PLASTIC FILM CF92 T 400V R04...

Page 21: ...PFK 36HFX72 C681 24668471 ELECTROLYTIC 35V 470UF M 3A C682 24668102 ELECTROLYTIC 35V 1000UF M 3A C683 24668471 ELECTROLYTIC 35V 470UF M 3A C684 24668102 ELECTROLYTIC 35V 1000UF M 3A 36HFX72 C686 24503041 PLASTIC FILM 63V 0 1UF J 36HFX72 C704 24591822 PLASTIC FILM 50V 8200PF J C705 24232103 CERAMIC DISC 50V F 10000PF Z C707 24794470 ELECTORLYTIC 16V 47UF M C712 24666470 ELECTORLYTIC 16V 47UF M 3A C...

Page 22: ...4105101 CERAMIC CHIP 50V CH 100PF J C8601 24214103 CERAMIC DISC 500V B 10000PF K CA04 24109103 CERAMIC CHIP 50V B 0 01UF K CA05 24109103 CERAMIC CHIP 50V B 0 01UF K CA06 24109392 CERAMIC CHIP 50V B 3900PF K CA07 24109392 CERAMIC CHIP 50V B 3900PF K CA23 24105101 CERAMIC CHIP 50V CH 100PF J CA25 24109103 CERAMIC CHIP 50V B 0 01UF K CA27 24092538 CERAMIC CHIP 10V F 1UF Z CA28 24085970 ELECTROLYTIC N...

Page 23: ...F 0 1UF Z CR90 24100104 CERAMIC CHIP 25V F 0 1UF Z CS03 24105221 CERAMIC CHIP 50V CH 220PF J CS04 24797010 ELECTROLYTIC 50V 1UF M CS07 24105221 CERAMIC CHIP 50V CH 220PF J CS08 24797010 ELECTROLYTIC 50V 1UF M CS09 24105331 CERAMIC CHIP 50V CH 330PF J CS10 24797229 ELECTROLYTIC 50V 2 2UF M CS11 24797010 ELECTROLYTIC 50V 1UF M CS12 24105221 CERAMIC CHIP 50V CH 220PF J CS13 24797010 ELECTROLYTIC 50V ...

Page 24: ...2 CARBON FILM 1 6W 1 8K OHM J R374 24366473 CARBON FILM 1 6W 47K OHM J R379 24382103 OXIDE METAL FILM 1W 10K OHM J R380 24946226 CARBON CONPOSITI0N 1 2W 22M OHM K R381 24366822 CARBON FILM 1 6W 8 2K OHM J R392 24552102 OXIDE METAL FILM 1 2W 1K OHM J R394 24366102 CARBON FILM 1 6W 1K OHM J R395 24366103 CARBON FILM 1 6W 10K OHM J R396 24366103 CARBON FILM 1 6W 10K OHM J R397 24366103 CARBON FILM 1 ...

Page 25: ...273 CARBON FILM 1 6W 27K OHM J R717 24366333 CARBON FILM 1 6W 33K OHM J R718 24366222 CARBON FILM 1 6W 2 2K OHM J R719 24366101 CARBON FILM 1 6W 100 OHM J R720 24366102 CARBON FILM 1 6W 1K OHM J R721 24366101 CARBON FILM 1 6W 100 OHM J R722 24552471 OXIDE METAL FILM 1 2W 470 OHM J R723 24366101 CARBON FILM 1 6W 100 OHM J R724 24366151 CARBON FILM 1 6W 150 OHM J R725 24366182 CARBON FILM 1 6W 1 8K ...

Page 26: ...ILM 1 20W 100 OHM J R2106 24011101 CHIP METAL FILM 1 20W 100 OHM J R2107 24011101 CHIP METAL FILM 1 20W 100 OHM J R2108 24011103 CHIP METAL FILM 1 20W 10K OHM J R2109 24011103 CHIP METAL FILM 1 20W 10K OHM J R2110 24011103 CHIP METAL FILM 1 20W 10K OHM J R2146 24871102 CHIP METAL FILM 1 8W 1K OHM J R2147 24871102 CHIP METAL FILM 1 8W 1K OHM J R2148 24871102 CHIP METAL FILM 1 8W 1K OHM J R2149 2487...

Page 27: ...1 CHIP METAL FILM 1 20W 100 OHM J RA031 24011101 CHIP METAL FILM 1 20W 100 OHM J RA116 24011103 CHIP METAL FILM 1 20W 10K OHM J RA161 24011103 CHIP METAL FILM 1 20W 10K OHM J RA191 24011101 CHIP METAL FILM 1 20W 100 OHM J RA192 24011101 CHIP METAL FILM 1 20W 100 OHM J RA195 24011101 CHIP METAL FILM 1 20W 100 OHM J RA196 24011472 CHIP METAL FILM 1 20W 4 7K OHM J RA197 24011472 CHIP METAL FILM 1 20W...

Page 28: ...RD78 24366122 CARBON FILM 1 6W 1 2K OHM J 36HFX72 RD79 24366123 CARBON FILM 1 6W 12K OHM J 36HFX72 RD81 24366123 CARBON FILM 1 6W 12K OHM J 36HFX72 RD83 24366103 CARBON FILM 1 6W 10K OHM J 36HFX72 RD85 24366223 CARBON FILM 1 6W 22K OHM J 36HFX72 RD86 24366223 CARBON FILM 1 6W 22K OHM J 36HFX72 RD87 24366223 CARBON FILM 1 6W 22K OHM J 36HFX72 RD88 24366223 CARBON FILM 1 6W 22K OHM J 36HFX72 RJ01 24...

Page 29: ... FILM 1 20W 100 OHM J RV93 24011103 CHIP METAL FILM 1 20W 10K OHM J RV94 24011392 CHIP METAL FILM 1 20W 3 9K OHM J RV95 24011101 CHIP METAL FILM 1 20W 100 OHM J RV96 24011103 CHIP METAL FILM 1 20W 10K OHM J RV97 24011392 CHIP METAL FILM 1 20W 3 9K OHM J RV98 24011101 CHIP METAL FILM 1 20W 100 OHM J RV111 24011100 CHIP METAL FILM 1 20W 10 OHM J RV117 24011750 CHIP METAL FILM 1 20W 75 OHM J RV118 24...

Page 30: ...TRANSISTOR RN1204 Q301 23905610 IC LA7846N Q301B 70391355 SCREW 3X8MM Q302 23905871 IC TA1241AN Q305 23906077 IC OP AMP TCA0372 DP1 Q306 23314962 TRANSISTOR KTA1266 Y Q307 23114528 TRANSISTOR 2SC1740S Q308 23114528 TRANSISTOR 2SC1740S Q340 23205057 TRANSISTOR KTC3875Y Q360 23205057 TRANSISTOR KTC3875Y Q370 23314962 TRANSISTOR KTA1266 Y Q390 72112051 IC TA75558S Q391 23205079 TRANSISTOR 2SC4686A Q4...

Page 31: ...875Y QB44 23114499 TRANSISTOR RN1404 QB45 23205057 TRANSISTOR KTC3875Y QB55 23314204 TRANSISTOR 2SC2412K Q QB92 23314204 TRANSISTOR 2SC2412K Q QB93 23205045 TRANSISTOR 2SA1037AKQ QB94 23205045 TRANSISTOR 2SA1037AKQ QB95 23205045 TRANSISTOR 2SA1037AKQ QB96 23205045 TRANSISTOR 2SA1037AKQ QD01 23009142 IC 2CH A PRO WITH AGC DIP32 NJW1136D QD41 23000725 IC NJM2700L 36HFX72 QD41 23000189 IC TA2136N 36H...

Page 32: ...L2 D884 23357018 DIODE VRM 350V IF 2A S R DO15L RL2 D885 23316819 DIODE RU4YX D886 23316819 DIODE RU4YX D892 23316184 DIODE FML G12S D892B 70391355 SCREW 3X8MM D893 23316184 DIODE FML G12S D893B 70391355 SCREW 3X8MM D895 23118094 DIODE EU2A D896 23118094 DIODE EU2A D899 24019485 VARISTOR TNR10V431K D901 23118859 DIODE 1SS133 D904 23118859 DIODE 1SS133 D905 23118859 DIODE 1SS133 D906 23118859 DIODE...

Page 33: ...HIP JUMPER 1608TYPE GJ19 24000445 CHIP JUMPER 1608TYPE GJ33 24000445 CHIP JUMPER 1608TYPE GJ40 24000445 CHIP JUMPER 1608TYPE GJ42 24000445 CHIP JUMPER 1608TYPE GJ43 24000445 CHIP JUMPER 1608TYPE GJ663 24000445 CHIP JUMPER 1608TYPE 36HF72 GJ664 24000445 CHIP JUMPER 1608TYPE 36HFX72 GJA33 24000445 CHIP JUMPER 1608TYPE GR07 24000445 CHIP JUMPER 1608TYPE GR24 24000445 CHIP JUMPER 1608TYPE GR90 2400044...

Page 34: ...FX72 K912 23306414 REMOCON HAND UNIT IR PJTVUSA CT 90087 36HF72 Y101 23565643 OWNER S MANUAL ENGLISH FRENCH 36HFX72 Y101 23565661 OWNER S MANUAL ENGLISH FRENCH 36HF72 CABINET PARTS A201 23530330 FRONT COVER ASSY 36HFX72 36HFX72 A201 23530329 FRONT COVER ASSY 36HF72 36HF72 A213 23428096 DOOR DOOR 36HFX72 36HFX72 A213 23428095 DOOR DOOR 36HF72 36HF72 A214 23451976 PUSH CATCH CLICK A223 23445612 POWE...

Page 35: ... 33 34 SIGNAL BOARD PD0650 BOTTOM FOIL SIDE ...

Page 36: ... 35 36 POWER DEF BOARD PD0159 BOTTOM FOIL SIDE ...

Page 37: ... 37 CRT D VM BOARD PD0164 BOTTOM FOIL SIDE ...

Page 38: ... 38 AC IN BOARD PD0161 BOTTOM FOIL SIDE LOW B BOARD PB9567 BOTTOM FOIL SIDE ...

Page 39: ... 39 CONTROL 1 BOARD PD0651 BOTTOM FOIL SIDE ...

Page 40: ... 40 CONTROL 2 BOARD PD0652 BOTTOM FOIL SIDE ...

Page 41: ... 41 WOW BOARD PD0645 BOTTOM FOIL SIDE ...

Page 42: ...SC4544 2SA1788 2SA1306 2SA1186A 2SC752GTM 2SC2482 2SC2655 2SC4721P 2SC752 2SA562TM 2SA1015 2SC1815 2SC2878 2SC1740S 2SC2120 2SA9335 2SA1788 RN2203 RN2201 RN2004 RN1203 RN1204 RN2204 RN1205 RN1202 RN1201 2SD1554 2SD2253 2SD1556 2SC5143 2SC5570 2SD2553 E C B B C E BCE B CE B C E E C B E C B ON4409 B C E ...

Page 43: ... position of replacements is to be identical with originals Before replacing any of these components read carefully the PRODUCT SAFETY NOTICE on the MANUAL for this model Do not degrade the safety of the receiver through improper servicing NOTE 1 RESISTOR Resistance is shown in ohm K 1 000 M 1 000 000 All resistors are 1 6W and 5 tolerance carbon resistor unless otherwise noted as the following ma...

Page 44: ...TECTOR AUDIO OUT Q610 WOW QD01 QD41 R R L R L L WOOFER W Q510 CHROMA VIDEO DEF A B QA02 MEMORY KEY CONTROL QV01 SIGNAL SW VAR AUDIO 12V QA01 MICROPROCESSOR VIDEO INPUT 2 Q830 Q843 SW Q840 D847 RESET STBY 5V Q835 Q390 5A F890 9V 1 5A 24 5V F889 2A F470 T862 D893 D892 12V R883 D885 D886 D883 D884 Q404 H OUTPUT RED OUTPUT GREEN OUTPUT BLUE OUTPUT FBT T461 125V 33V D471 I 2 C BUS LINE SIGNAL UNIT POWE...

Page 45: ...0 286V p p burst signal 75 ohm VIDEO AUDIO INPUT VIDEO 1V p p 75 ohm negative sync AUDIO 150mV rms 30 modulation equivalent 47k ohm ColorStream Component video INPUT Y 1V p p 75 ohm PB 0 7 V p p 75 ohm PR 0 7 V p p 75 ohm AUDIO 150 mV rms 47k ohm VIDEO AUDIO OUT PUT VIDEO 1 V p p 75 ohm negative sync AUDIO 150 mV rms 30 modulation equivalent 4 7k ohm VARIABLE AUDIO OUTPUT 0 300mV rms 30 modulation...

Page 46: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...

Page 47: ... position of replacements is to be identical with originals Before replacing any of these components read carefully the PRODUCT SAFETY NOTICE on the MANUAL for this model Do not degrade the safety of the receiver through improper servicing NOTE 1 RESISTOR Resistance is shown in ohm K 1 000 M 1 000 000 All resistors are 1 6W and 5 tolerance carbon resistor unless otherwise noted as the following ma...

Page 48: ...TECTOR AUDIO OUT Q610 WOW QD01 QD41 R R L R L L WOOFER W Q510 CHROMA VIDEO DEF A B QA02 MEMORY KEY CONTROL QV01 SIGNAL SW VAR AUDIO 12V QA01 MICROPROCESSOR VIDEO INPUT 2 Q830 Q843 SW Q840 D847 RESET STBY 5V Q835 Q390 5A F890 9V 1 5A 24 5V F889 2A F470 T862 D893 D892 12V R883 D885 D886 D883 D884 Q404 H OUTPUT RED OUTPUT GREEN OUTPUT BLUE OUTPUT FBT T461 125V 33V D471 I 2 C BUS LINE SIGNAL UNIT POWE...

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