Toshiba 32A32 User Manual Download

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TOSHIBA CORPORATION

1-1, SHIBAURA 1- CHOME, MINATO-KU, TOKYO 105-8001, JAPAN

FILE NO. 020-200201

SERVICE MANUAL

COLOR TELEVISION

N2ES Chassis

32A32

PUBLISHED IN JAPAN,

Apr. 2002

(TAC0245)

Summary of Contents for 32A32

Page 1: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN FILE NO 020 200201 SERVICE MANUAL COLOR TELEVISION N2ES Chassis 32A32 PUBLISHED IN JAPAN Apr 2002 So TAC0245 ...

Page 2: ...DE 8 DESIGN MODE 11 ELECTRICAL ADJUSTMENT 12 CIRCUIT CHECKS 15 CHAPTER 2 SPECIFIC INFORMATIONS SETTING ADJUSTING DATA 16 LOCATION OF CONTROLS 17 PROGRAMMING CHANNEL MEMORY 18 CHASSIS AND CABINET REPLACEMENT PARTS LIST 19 PC BOARDS BOTTOM VIEW 27 TERMINAL VIEW OF TRANSISTORS 30 CIRCUIT BLOCK DIAGRAM 32 SPECIFICATIONS END APPENDIX CIRCUIT DIAGRAM ...

Page 3: ...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 the AC line before any serv ice...

Page 4: ...ASS CLOTH TAPES DEFLECTION YOKE TEMPORARY MOUNTING RUBBER WEDGE ADHESIVE DEFLECTION YOKE PURITY CONVERGENCE MAGNET ASS Y 14mm 13 14 19mm 19 20 Figure 1 COLOR PURITY ADJUSTMENT NOTE Before attempting any purity adjustments the receiver should be operated for at least fifteen minutes 1 Demagnetize the picture tube and cabinet using a degauss ing coil 2 Set the brightness and contrast to maximum 3 Us...

Page 5: ...1 Do not remove cover paper on adhesive part of the wedge 3 Tilt front of the deflection yoke up or down to obtain better convergence in circumference See figure 3 Push the mounted wedge into the space between picture tube and the yoke to fix the yoke temporarily 4 Put other wedge into bottom space and remove the cover paper to stick 5 Tilt front of the yoke right or left to obtain better conver g...

Page 6: ...RAST 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 until t...

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: ...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 RECALL Channel s button on TV Initialization of the self diagnos...

Page 9: ... Programming Channel Memory on the owner s manual CAUTION Never attempt to initialize the data unless QA02 has been replaced 7 TEST SIGNAL SELECTION 1 Every pressing of TV VIDEO button on the Remote Control in the Service mode changes the built in test patterns on screen in the following order Normal picture Black cross bar on green raster Red raster H signal black H signal white Green raster Blue...

Page 10: ...0 is normal 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 fai...

Page 11: ...gn mode changes the adjustment items in the order of table 3 s button for reverse order Refer to table 3 for data of design mode See SETTING ADJUSTING DATA on page 16 3 ADJUSTING THE DATA Pressing of VOLUME s or t button will change the value of data When QA02 is initialized items OPT0 and OPT1 of DESIGN MODE are set to the data of the representative model of this chassis family Therefore because ...

Page 12: ...contrast 6 Adjust the HEIGHT control SUB COLOR COLC SUB TINT TNTC 1 Receive color bar signal from color bar generator 2 Press the RESET button 3 Connect oscilloscope to base of Q906 on CRT D board 4 Enter the service mode then select COLC 5 Adjust the SUB COLOR by pressing the VOLUME s or t button to achieve about 1V0 p of blue bar 6 Select TNTC register 7 Adjust the data value to obtain the blue ...

Page 13: ...nd press the TV VIDEO button on Remote until the white and black pattern appears on the screen 3 Adjust the following item with the CHANNEL s t and VOLUME s t buttons 4 Press the TV VIDEO button on TV to display a single horizontal line on the screen 5 Turn the SCREEN control FBT fully counterclockwise and gradually rotate clockwise until the first horizontal line appears slightly on the screen 6 ...

Page 14: ... pin 34 of QG01 4 Change data by VOLUME s t button to minimize AC output level on scope 5 Resolder SL02 STEREO 300Hz 30 mod R channel only ANT 1 Display item WBAN on screen 2 Connect oscilloscope to pin 35 of QG01 3 Change data by VOLUME s t buttons so that 300Hz element on scope becomes minimum STEREO 3kHz 30 mod R channel only ANT 1 Display item SPEC on screen 2 Connect oscilloscope to pin 35 of...

Page 15: ...IGHTNESS and CON TRAST controls to minimum zero beam current 3 High voltage must be measured below B kV Refer to table 1 for high voltage B See SETTING ADJUSTING DATA on page 16 4 Vary the BRIGHTNESS control to both extremes to be sure the high voltage does not exceed the limit under any con ditions FS CIRCUIT CHECK The Fail Safe FS circuit check is indispensable for the final check in servicing C...

Page 16: ... Item Name of adjustment Preset WBAN HPOS VPOS HIT LIN VSC WID DPC CNR TRAP VPS VCP HCP VFC STEREO SEPARATION HORIZ POSITION VERT POSITION HEIGHT V LINEARITY V S CORRECTION PICTURE WIDTH E W PARABOLA DPC E W CORNER TRAPEZIUM V SHIFT V COMPENSATION H COMPENSATION V F CORRECTION 20H 16H 03H 26H 07H 02H 35H 17H 09H 08H 01H 03H 00H 0FH 16H 19H 1CH 03H 25H 13H 03H 07H 09H 43H 3DH 48H 25H 0FH 21H 21H 1D...

Page 17: ...ER POWER IND RED Remote Control TV CABLE VCR MENU ENTER CH RTN RECALL MUTE CH CH VOL VOL 1 4 7 2 5 8 3 6 9 0 ENT 100 POWER TV VIDEO FAV CH EXIT REW PAUSE FF SOURCE STILL PIP SLOW PIP CH LOCATE SWAP STOP PLAY REC TV VCR MUTE RECALL CHANNEL s t Menu s t TV CABLE VCR Set to TV to control the TV TV VIDEO VOLUME T S Menu T S MENU CH RTN Channel Number POWER EXIT FAV CH t sbutton PIP function MENU POWER...

Page 18: ...se using the CHAN NEL s or t button or select the channel you want to add using the Channel Number buttons 2 Press MENU repeatedly until the Setup menu is displayed on the screen 3 Press t or s repeatedly until ADD ERASE is displayed purple 4 Press S or T To erase the channel Press the button until ERASE is displayed in purple indicating that the channel has been erased from the memory To add the ...

Page 19: ...78010 ELECTROLYTIC 200V 1UF M 3A C417 24214331 CERAMIC DISC 500V B 330PF K C421 24539334 PLASTIC FILM 50V 0 33UF J C430 24109103 CERAMIC CHIP 50V B 0 01UF K C431 24794101 ELECTROLYTIC 16V 100UF M C438 24092344 CERAMIC DISC 2KV 820PF K C439 24503125 PLASTIC CAP T 400V 753J C442 24082924 PLASTIC FILM CF92 T 315V 0 56UF J C443 24082963 PLASTIC FILM 1500VH 9100PF H C444 24082964 PLASTIC FILM 1500VH 10...

Page 20: ...AMIC CHIP 50V CH 100PF J CA42 24794100 ELECTROLYTIC 16V 10UF M CA43 24109103 CERAMIC CHIP 50V B 0 01UF K CA44 24109103 CERAMIC CHIP 50V B 0 01UF K CA68 24794100 ELECTROLYTIC 16V 10UF M CA69 24109103 CERAMIC CHIP 50V B 0 01UF K CB01 24794470 ELECTORLYTIC 16V 47UF M CB48 24105101 CERAMIC CHIP 50V CH 100PF J CB60 24085944 ELECTROLYTIC NONPOLAR 50V 2 2UF M 11L CB61 24591102 PLASTIC FILM 50V 1000PF J C...

Page 21: ...ILM 1 20W 1K OHM J R263 24011472 CHIP METAL FILM 1 20W 4 7K OHM J R264 24011102 CHIP METAL FILM 1 20W 1K OHM J R265 24011472 CHIP METAL FILM 1 20W 4 7K OHM J R266 24011102 CHIP METAL FILM 1 20W 1K OHM J R271 24366471 CARBON FILM 1 6W 470 OHM J R272 24011222 CHIP METAL FILM 1 20W 2 2K OHM J R301 24011102 CHIP METAL FILM 1 20W 1K OHM J R303 24321109 OXIDE METAL FILM 1 2W 1 OHM J R304 24011393 CHIP M...

Page 22: ...53 OXIDE METAL FILM 2W 15K OHM J R962 24383153 OXIDE METAL FILM 2W 15K OHM J R968 24366150 CARBON FILM 1 6W 15 OHM J R977 24366122 CARBON FILM 1 6W 1 2K OHM J RA03 24366102 CARBON FILM 1 6W 1K OHM J RA04 24011102 CHIP METAL FILM 1 20W 1K OHM J RA06 24011102 CHIP METAL FILM 1 20W 1K OHM J RA07 24011102 CHIP METAL FILM 1 20W 1K OHM J RA08 24366102 CARBON FILM 1 6W 1K OHM J RA09 24366102 CARBON FILM ...

Page 23: ...AL FILM 1 20W 150 OHM J RZ16 24366101 CARBON FILM 1 6W 100 OHM J RZ17 24366181 CARBON FILM 1 6W 180 OHM J RZ18 24011121 CHIP METAL FILM 1 20W 120 OHM J RZ21 24011471 CHIP METAL FILM 1 20W 470 OHM J RZ22 24011101 CHIP METAL FILM 1 20W 100 OHM J RZ28 24011102 CHIP METAL FILM 1 20W 1K OHM J RZ34 24011474 CHIP METAL FILM 1 20W 470K OHM J RZ35 24011821 CHIP METAL FILM 1 20W 820 OHM J RZ36 24011123 CHIP...

Page 24: ...NSISTOR KTC3198 Y QG01 23906499 IC UPC1851BCU QS60 23314965 TRANSISTOR KTC3198 Y QS61 23314965 TRANSISTOR KTC3198 Y QS62 23114466 TRANSISTOR RN2204 QS63 23114623 TRANSISTOR 2SC2878 A TEM QS64 23114623 TRANSISTOR 2SC2878 A TEM QV01 23000686 IC MM1311BD QV02 23314965 TRANSISTOR KTC3198 Y QV60 23314965 TRANSISTOR KTC3198 Y QZ01 23009176 IC 3LINE DIGITAL Y C SEP TC90A53N QZ04 23314965 TRANSISTOR KTC31...

Page 25: ...VER PIC TB17 M461B 23504358 CABLE FOCUS N726 23969041 TAPE WHITE 3M 1 W 1 INCH TNP COMMON P801 23372115 POWER CORD U C 125V10A HSV 4 CMC 02P 3 P910 23164725 CONNECTOR PLUG 2P PV01 23365575 JACK Y C JLC YKF51 5575 PV02 23365990 JACK PIN 6P INCHAN JACK 6P PV03 23365991 JACK PIN 5P INCHAN JACK 5P SA01 23344443 SWITCH TACTING SWITCH TSV TYP TSVB 1 SA02 23344443 SWITCH TACTING SWITCH TSV TYP TSVB 1 SA0...

Page 26: ... 26 SPECIFIC INFORMATIONS THIS PAGE IS INTENTIONALLY LEFT BLANK ...

Page 27: ... 27 28 MAIN BOARD PD0628 BOTTOM FOIL SIDE ...

Page 28: ... 29 CRT DRIVE BOARD PD0629 BOTTOM FOIL SIDE ...

Page 29: ...763A 2SC1569 2SC4544 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 E C B B C E BCE B CE B C E E C B ON4409 2SD1554 2SD2253 2SD1556 2SC5143 2SD2553 E C B B C E ...

Page 30: ...6W and 5 tolerance carbon resistor unless otherwise noted as the following marks 1 2R Metal or Metal oxide of 1 2 watt 1 2S Carbon compsistion of 1 2 watt 1RF Fuse resistor of 1 watt 10W Cement of 10 watt K 10 G 2 F 1 2 CAPACITOR Unless otherwise noted in schematic all capacitor values less than 1 are expressed in F and the values more than 1 in pF All capacitors are ceramic 50V unless otherwise n...

Page 31: ... 32 GENERAL ADJUSTMENTS SPECIFIC INFORMATIONS QZ01 FILTER QG01 MTS Q830 CIRCUIT BLOCK DIAGRAM ...

Page 32: ...s 60 x 120 mm VIDEO AUDIO TERMINALS S VIDEO INPUT Y INPUT 1V p p 75 ohm negative sync C INPUT 0 286V p p burst signal 75 ohm VIDEO AUDIO INPUT VIDEO1 VIDEO2 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 CR 0 7V p p 75 ohm CB 0 7V p p 75 ohm VIDEO AUDIO OUTPUT VIDEO 1V p p 75 ohm negative sync AUDIO 150mV rms 30 ...

Page 33: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN FILE NO 020 200201 SERVICE MANUAL COLOR TELEVISION N2ES Chassis 32A32 PUBLISHED IN JAPAN Apr 2002 So TAC0245 ...

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