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Toshiba 29VZ6DA, Service Manual

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Toshiba 29VZ6DA Service Manual Download Page 12

– 12 –

GENERAL ADJUSTMENTS

CIRCUIT  CHECK

HIGH  VOLTAGE  CHECK
CAUTION:

 There is no HIGH VOLTAGE ADJUSTMENT on this chassis.  Checking should be done following the steps

below.

1. Connect an accurate high voltage meter to the second anode of the picture tube.
2. Turn on the receiver.  Set the BRIGHTNESS and CONTRAST 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 13)

4. Vary the BRIGHTNESS control to both extremes to be sure the high voltage does not exceed the limit under any conditions.

Summary of Contents for 29VZ6DA

Page 1: ...Sep 2002 FILE NO 060 200210 SERVICE MANUAL COLOUR TELEVISION S2ES Chassis 29VZ6DE 29VZ6DA 29VZ6SH ...

Page 2: ...N MODE 9 ELECTRICAL ADJUSTMENTS 10 CIRCUIT CHECK 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 27 TERMINAL VIEW OF TRANSISTORS 32 CIRCUIT BLOCK DIAGRAM 34 SPECIFICATIONS END APPENDIX CIRCUIT DIAGRAM ...

Page 3: ...by anyone unfamiliar with the necessary precautions on this receiver The following 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 service is performed on the receiver 2 Always discharge the picture tube anode to the CRT conductive coating before handling the ...

Page 4: ...KE TEMPORARY MOUNTING RUBBER WEDGE ADHESIVE DEFLECTION YOKE PURITY CONVERGENCE MAGNET ASS Y 29 1mm 28 29 25mm 25 19mm 19 20 21 14mm 13 14 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 Use a g...

Page 5: ...move 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 gence in cir...

Page 6: ...N OFF MENU button on TV Initialization of the memory QA02 CALL Channel button on TV s Reset the count of operating protect circuit to 00 CALL Channel button on TV t RCUT selection 1 button GCUT selection 2 button BCUT selection 3 button CNTX or SCNT selection 4 button COLC selection 5 button TNTC selection 6 button Test audio signal ON OFF 1kHz 8 button Self diagnostic display ON OFF 9 button 1 Pr...

Page 7: ...ss and hold the CALL button on the Remote then press the CHANNEL s button on the TV The initialization of QA02 has been complated 3 Check the picture carefully If necessary adjust any adjustment item above Perform Auto search 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 a button on the Remote Con...

Page 8: ...f mode now selected Green and Red Indicated color of other modes White Green Normal Red The microcomputer operates to provide judgement of no video signal The red color is still indicated though the signal is input failure may exist in input signal line including QV01 QV01 In case of indication green Normal In case of indication red with input signal Failure may exist in output line including QV01...

Page 9: ...anges 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 13 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 ON SCREEN ...

Page 10: ...nce between the belt of vertical re trace and the border of black portion of inside pattern is visible After that return vertical height and con trast ITEM ADJUSTMENT PROCEDURE Belt of vertical retrace HORIZONTAL POSITION ADJUSTMENT HPOS VERTICAL POSITION ADJUSTMENT VPOS 1 Set the TV in service mode and get black or white cross bar signal with VIDEO button on remote hand unit 2 Select either HPOS ...

Page 11: ...Note Every pressing of button provides Horizontal line picture and Normal picture alternately 5 Press button to release horizontal line picture and select the two other colors which did not light in the above step with CHANNEL s t buttons Then tap VOL UME buttons so that three colors slightly light in the same level X To correct white balance in light area select GDRV and BDRV with CHANNEL s t but...

Page 12: ...high voltage meter to the second anode of the picture tube 2 Turn on the receiver Set the BRIGHTNESS and CONTRAST 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 13 4 Vary the BRIGHTNESS control to both extremes to be sure the high voltage does not exceed the limit under any conditions ...

Page 13: ... VLIN WID PARA TRAP BELL SRY SBY R CUTOFF B W G CUTOFF B W B CUTOFF B W G DRIVE B DRIVE SUB BRIGHT CEN SUB COLOR CEN NTSC SUB TINT CEN SUB COLOR CEN PAL SUB COLOR CEN SECAM SUB CONTRAST 50Hz H POSITION V POSITION HEIGHT V LINEARITY PICTURE WIDTH E W PARABOLA TRAPEZIUM SECAM BELL FILTER SECAM R Y SECAM B Y 20H 20H 20H 80H 80H 80H 80H 40H F6H F6H 07H 12H 03H 20H 07H 2CH 2BH 0BH 01H 08H 08H Table 2 D...

Page 14: ... VIDEO VIDEO AUDIO L MONO AUDIO R 2 DVD COMPONENT VIDEO INPUT terminals VIDEO AUDIO L MONO AUDIO R PB CB PR CR MONITOR MONITOR output terminals VIDEO AUDIO L MONO AUDIO R Front Back L MONO R AUDIO VIDEO 3 MENU Remote sensor r ON timer green q Power red indicator q POWER switch t c s Channel select Volume down up a TV VIDEO MENU Behind the door a 3 Video 3 input terminal Headphone jack ø3 5 mm ...

Page 15: ...FIC INFORMATIONS Remote on screen on off Digit Select CH down up Menu 8 9 Menu open Mute Power ON OFF Direct Select TV VIDEO Select Volume down up Menu Picture control CALL TXT TV CH CH MENU 5 4 6 2 1 3 8 7 0 9 ...

Page 16: ...n channel is not good re tune the channel using the ASM or MANUAL SEARCH or MFT function If the color of a certain channel is abnormal automatic color systemselection AUTO maymalfunction orsoundsystem selection is wrong In such a case select another color and or sound system 1 2 3 5 4 To preset channels Manual search and to skip unnecessary position numbers 1 2 3 4 5 7 6 Manual search Select a des...

Page 17: ...enu on the screen Press the t s buttons to move the cursor S to AFT Press the MENU buttons to select the ON indication Note When position is set to AFT OFF status the R mark appears to the left of the position number When the channel is set to AFT ON status the position number is displayed without the R mark 1 2 3 4 1 2 3 To skip a position number After presetting the channels you may skip unneces...

Page 18: ...22 M 100V 180000PF J C341 24797101 ELECTROLYTIC 50V 100UF M C342 24795100 ELECTROLYTIC CE04G 25V 10UF M C361 24794220 ELECTROLYTIC 16V 22UF M C403 24591562 PLASTIC FILM 50V 5600PF J C403 24795102 ELECTROLYTIC 25V 1000UF M C404 24797010 ELECTROLYTIC 50V 1UF M C413 24214821 CERAMIC DISC 500V B 820PF K C416 24678229 ELECTROLYTIC 200V 2 2UF M 3A C417 24214391 CERAMIC DISC 500V B 390PF K C420 24794101 ...

Page 19: ...KV 330PF K C818 24095931 PLASTIC FILM 1250VH 2200PF J C819 24676220 ELECTROLYTIC 100V 22UF M 3A C821 24214471 CERAMIC DISC 500V B 470PF K C822 24539474 PLASTIC FILM 50V 0 47UF J C823 24214471 CERAMIC DISC 500V B 470PF K C829 24591272 PLASTIC FILM 50V 2700PF J C831 24794470 ELECTORLYTIC 16V 47UF M C833 24797229 ELECTROLYTIC 50V 2 2UF M C841 24797100 ELECTROLYTIC 50V 10UF M C842 24794100 ELECTROLYTI...

Page 20: ...RAMIC DISC 50V F 0 01UF Z CV33 24232103 CERAMIC DISC 50V F 0 01UF Z CV34 24762471 ELECTROLYTIC 10V 470UF M CV36 24794221 ELECTROIYTIC 16V 220UF M CZ02 24794220 ELECTROLYTIC 16V 22UF M CZ03 24353120 CERAMIC DISC 50V CH 12PF J RESISTORS R101 24366104 CARBON FILM 1 6W 100K OHM J R101 24382183 OXIDE METAL FILM 1W 18K OHM J R102 24366683 CARBON FILM 1 6W 68K OHM J R103 24366122 CARBON FILM 1 6W 1 2K OH...

Page 21: ...LM 1 6W 1K OHM J R497 24366154 CARBON FILM 1 6W 150K OHM J R498 24366563 CARBON FILM 1 6W 56K OHM J R501 24366332 CARBON FILM 1 6W 3 3K OHM J R502 24366222 CARBON FILM 1 6W 2 2K OHM J R503 24366102 CARBON FILM 1 6W 1K OHM J R504 24366102 CARBON FILM 1 6W 1K OHM J R505 24366222 CARBON FILM 1 6W 2 2K OHM J R506 24366102 CARBON FILM 1 6W 1K OHM J R507 24366102 CARBON FILM 1 6W 1K OHM J R508 24366222 ...

Page 22: ...2 CARBON FILM 1 6W 1 2K OHM J R992 24366150 CARBON FILM 1 6W 15 OHM J RA20 24366331 CARBON FILM 1 6W 330 OHM J RA21 24366103 CARBON FILM 1 6W 10K OHM J RA22 24366331 CARBON FILM 1 6W 330 OHM J RA23 24366331 CARBON FILM 1 6W 330 OHM J RA24 24366102 CARBON FILM 1 6W 1K OHM J RA30 24366101 CARBON FILM 1 6W 100 OHM J RA31 24366101 CARBON FILM 1 6W 100 OHM J RA35 24366102 CARBON FILM 1 6W 1K OHM J RA36...

Page 23: ... 6W 100 OHM J RV13 24366472 CARBON FILM 1 6W 4 7K OHM J RV14 24366101 CARBON FILM 1 6W 100 OHM J RV15 24366101 CARBON FILM 1 6W 100 OHM J RV16 24366101 CARBON FILM 1 6W 100 OHM J RV17 24366820 CARBON FILM 1 6W 82 OHM J RV18 24366103 CARBON FILM 1 6W 10K OHM J RV19 24366103 CARBON FILM 1 6W 10K OHM J RV19 24366622 CARBON FILM 1 6W 6 2K OHM J 29VZ6DE 29VZ6DA RV20 24366102 CARBON FILM 1 6W 1K OHM J 2...

Page 24: ...1 TRANSISTOR 2SC3852 Q420B 70391355 SCREW BIND HEAD TAP TITE B BITTB 3X8 SZN Q421 23314965 TRANSISTOR KTC3198 Y Q430 23314141 TRANSISTOR 2SC3852 Q430B 70391355 SCREW BIND HEAD TAP TITE B BITTB 3X8 SZN Q431 23314965 TRANSISTOR KTC3198 Y Q432 23314965 TRANSISTOR KTC3198 Y Q460 23314938 TRANSISTOR 2SD2493 P Q460B 23037312 SCREW BTBW3X12SZN Q461 23314962 TRANSISTOR KTA1266 Y Q462 23314962 TRANSISTOR K...

Page 25: ... SCREW 3X10MM D804 23118505 DIODE ZENER RD15ESA B2 D805 23357012 DIODE 1SS244 D806 23118094 DIODE EU2A D807 23118616 DIODE ZENER RD27ESA B2 D810 23118496 DIODE ZENER RD22ESA B2 D811 23357341 DIODE 1SS133 D815 23118616 DIODE ZENER RD27ESA B2 D817 23357341 DIODE 1SS133 D818 23118496 DIODE ZENER RD22ESA B2 D819 23118526 DIODE ZENER RD6 8ES B2 D821 23357341 DIODE 1SS133 D828 23357341 DIODE 1SS133 D831...

Page 26: ... Z424 23144539 PROTECTOR 491SERIES 125V 2A Z889 23144542 PROTECTOR 491SERIES 125V 4A PC BOARD ASSEMBLIES U901 23787974 CRT D BOARD PD0885 U902A 23787950 SIGNAL BOARD PD0863 1 29VZ6DE U902A 23788054 SIGNAL BOARD PD0912 1 29VZ6DA U902A 23788059 SIGNAL BOARD PD0914 1 29VZ6SH U902B 23787975 RMT BOARD PD0863 2 29VZ6DE U902B 23788055 RMT BOARD PD0912 2 29VZ6DA U902B 23788060 RMT BOARD PD0914 2 29VZ6SH U...

Page 27: ... 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 noted as ...

Page 28: ...10 Q840 L R VIDEO L R AV IN 1 AV IN 2 MEMORY REGULATOR RESET µ COM I 2 C BUS R G B HYBRID CONVERTER TRANS B VOLTAGE C Y CHROMA VIDEO DEF VIDEO OUT V OUT H OUT ERROR AMP F B T H V D Y V H CRT AUDIO OUT L R AV SW TEXT BUS CONTROL BLOCK SV V L R R MONITOR OUTPUT V L R V L CHASSIS BLOCK DIAGRAM CIRCUIT BLOCK DIAGRAM ...

Page 29: ... 5 2 5 2 5 2 5 2 5 2 0 0 0 0 5 2 5 2 0 0 2 0Vp p 2 0Vp p 4 0 4 0 3 3 3 3 3 3 3 3 3 3 3 3 3 5 3 5 5 2 5 2 5 2 5 2 9 0 9 0 3 8 3 8 9 0 9 0 3 8 3 8 4 0 4 0 4 0 4 0 4 5 4 5 3 8 3 8 3 8 3 8 5 0 5 0 0 0 0 0 4 5 4 5 4 5 4 5 5 0 5 0 0 0 0 0 9 0 9 0 5 0 5 0 4 5 4 5 0 0 4 5 4 5 0 0 0 0 9 0 9 0 4 5 4 5 4 5 4 5 5 0 5 0 32 0 32 0 9 0 9 0 0 0 0 0 0 0 8 9 8 9 2 9 2 9 3 6 3 6 2Vp p 2Vp p 1Vp p 1Vp p 0 0 1 6 1 6 2...

Page 30: ...0 0 9 7 9 7 27 0 27 0 9 9 9 9 6 8 6 8 0 0 2 2 2 2 2 2 2 2 ...

Page 31: ...5 0 5 0 5 0 5 0 0 0 0 0 0 0 0 0 0 0 5 0 5 0 9 0 9 0 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 0 7 9 7 5 0 5 0 0 0 0 0 ...

Page 32: ...4 0 4 0 4 0 4 0 2 0Vp p 2 0Vp p 3 8 3 8 4 5 4 5 0 0 9 0 9 0 ...

Page 33: ...4 5 4 5 4 5 4 5 5 0 5 0 0 0 0 0 9 0 9 0 5 0 5 0 4 5 4 5 0 0 4 5 4 5 0 0 0 4 5 4 5 4 5 4 5 5 0 5 0 32 0 32 0 0 0 0 0 ...

Page 34: ...8 9 8 9 2 9 2 9 3 6 3 6 2Vp p 2Vp p 1Vp p 1Vp p 0 0 1 6 1 6 2 3 2 3 5 0 5 0 0 0 5Vp p 5Vp p 0 0 0 0 4 7 4 7 4 7 4 7 0 0 0 0 0 0 0 0 ...

Page 35: ...9 0 9 0 0 0 0 0 0 0 5 0 5 0 0 0 0 0 4 5 4 5 9 0 9 0 7 4 7 4 0 0 ...

Page 36: ... 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 5 2 0 0 0 0 5 2 5 2 0 0 4 0 4 0 3 3 3 3 3 3 3 3 3 3 3 3 3 5 3 5 5 2 5 2 5 2 5 2 9 0 9 0 3 8 3 8 9 0 9 0 3 8 3 8 4 0 4 0 4 0 4 0 4 5 4 5 3 8 3 8 3 8 3 8 9 0 9 0 0 0 0 0 0 0 9 0 9 0 9 6 9 6 12 0 12 0 12 12 5 5 5 6 5 6 ...

Page 37: ...29VZ6SH 29VZ6DA 29VZ6DE SIGNAL 0 0 0 0 0 0 0 0 0 0 0 0 3 4 3 4 3 4 3 4 9 9 3 9 3 9 4 5 4 5 9 0 9 0 4 0 4 0 9 0 9 0 4 0 4 0 ...

Page 38: ... 450Vp p 450Vp p AC 220V AC 220V 0V 0V 14V 14V 40mV 40mV 1 5V 1 5V 9 5 9 5 14 14 8 9 8 9 5 0 5 0 5 0 5 0 19 19 3 9 3 9 0 0 51 51 6 7 6 7 1 1 1 1 14 0 14 0 122 7 122 7 6 0 6 0 122 3 122 3 64 3 64 3 0 8 0 8 0 3 0 3 5 5 5 5 5 2 5 2 0 0 11 5 11 5 5 5 5 5 11 5 11 5 6 5 6 5 0 1 0 1 0 8 0 8 6 0 6 0 0 8 0 8 1 5 1 5 9 8 9 8 11 5 11 5 7 9 7 9 8 5 8 5 9 0 9 0 160 160 8 7 8 7 2 2 2 2 9 0 9 0 160 160 8 7 8 7 3...

Page 39: ...35 0 35 0 0 0 450Vp p 450Vp p ...

Page 40: ...29 280Vp p H 280Vp p H 13 0 13 0 11 0 11 0 ...

Page 41: ...17 17 150Vp p H 150Vp p H 3 3 27Vp p H 27Vp p H 13 13 29 29 10 10 115 115 120Vp p H 120Vp p H 80Vp p H 280Vp p H 82Vp p H 82Vp p H 1000Vp p H 1000Vp p H 66Vp p 66Vp p 68Vp p 68Vp p 68Vp p 68Vp p ...

Page 42: ... 5 2 0 0 11 5 11 5 5 5 5 5 11 5 11 5 6 5 6 5 0 1 0 1 0 8 0 8 6 0 6 0 0 8 0 8 1 5 1 5 9 8 9 8 11 5 11 5 7 9 7 9 8 5 8 5 9 0 9 0 160 160 8 7 8 7 2 2 2 2 9 0 9 0 160 160 8 7 8 7 3 2 3 2 160 160 2 2 2 2 3 2 3 2 8 7 8 7 9 0 9 0 3 2 3 2 2 2 2 2 p p p p p p 2 2 2 2 0 0 2 0 2 0 ...

Page 43: ...450Vp p 450Vp p AC 220V AC 220V 0V 0V 14V 14V 40mV 40mV 1 5V 1 5V 51 51 6 7 6 7 ...

Page 44: ... 2 0 0 0 0 4 0 4 27 0 27 0 1H 1H 0 0 5 0 5 0 5 0 5 0 19 19 3 9 3 9 0 0 1 1 1 1 14 0 14 0 ...

Page 45: ...23 0 23 0 2 0 2 0 5V 5V 10V 10V 2 0 2 0 150V 150V 0 0 1H 1H 9 5 9 5 14 14 8 9 8 9 ...

Page 46: ...CRT D VM 29VZ6DE 29VZ6DA 29VZ6SH POWER DEF ...

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