manualshive.com logo in svg

Toshiba 28Z13B, Service Manual

Share
Download
Toshiba 28Z13B Service Manual Download Page 17

– 17 –

GENERAL ADJUSTMENTS

SPECIFIC INFORMATIONS

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 18)

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 28Z13B

Page 1: ...PRINTED IN JAPAN Jun 2001 T FILE NO 030 200107 SERVICE MANUAL COLOUR TELEVISION Z13B Chassis 28Z13B 28Z13G ...

Page 2: ...ENT 4 SERVICE MODE 6 DESIGN MODE 9 ELECTRICAL ADJUSTMENTS 10 CIRCUIT CHECK 17 CHAPTER 2 SPECIFIC INFORMATIONS SETTING ADJUSTING DATA 18 LOCATION OF CONTROLS 19 CIRCUIT BLOCK DIAGRAM 21 CHASSIS AND CABINET REPLACEMENT PARTS LIST 22 PC BOARDS BOTTOM VIEW 33 TERMINAL VIEW OF TRANSISTORS 40 SPECIFICATIONS 43 APPENDIX CIRCUIT DIAGRAM ...

Page 3: ... attempted 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 ha...

Page 4: ...ECTION YOKE 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 ...

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: ...Remote Change of the data value Volume on TV or Remote Adjustment menu mode ON 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 Self d...

Page 7: ...llowing initialization is required 1 Enter the service mode then select any register item 2 Press 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 unles...

Page 8: ...3 Indicated color of 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 ...

Page 9: ...ode 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 18 3 ADJUSTING THE DATA Pressing of VOLUME s or t button will change the value of data When QA02 is initialized items OPT0 OPT1 and OPT2 of DESIGN MODE are set to the data of the representative model of this chassis family Therefore because...

Page 10: ...before the difference between the belt of vertical retrace and the border of black portion of inside pattern is visible After that return vertical height and contrast 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 cross bar signal with VIDEO button on remote hand unit 2 Select eithe...

Page 11: ...utton on the remote control and rotate Screen VR to get one slight horizontal line on screen 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 ...

Page 12: ...n press 0 on HHU This is code 40 BF F6 Connect a volt meter to pin 55 of the Q501 Then adjust the L161 A Open IF and AGC solder pads Apply input signal Put set into S mode Send AGC code 40 BF F7 Wait for OSD display to change to AGC OK B or Feed in the colour Bar Signal with sound RF 90dBuV Adjust AGC Bus data so as to get the good S N picture and no inter modulation ap pearance 1 This item shall ...

Page 13: ... Local video key 6 Using the white balance checker repeat the adjustment steps until both bright and dark parts become correct value 1 Adjust the level of B W part of the colour difference signal to the level of H BLK part 2 Adjust the R Y axis and B Y axis by SRY and SBY data items respectively 1 Adjust the amplitude from the pedestal level to the white peak 1 Adjust the amplitude of B Y Be sure ...

Page 14: ... to the center see the right sketch Note Adjust and orient CPT either toward the south and north If this is impossible offset the difference PAL Philips Pattern User adjustment standard Adjust the vertical amplitude by HIT so that the top and bottom of the circle will touch the CPT mask with Philips Pattern see the right sketch Phillips Pattern User adjustment standard Adjust the vertical amplitud...

Page 15: ... frames of left and right flags 3 Use the PARA and TRAP and TRAP become optimum 4 In case distortion adjustment is insufficient by the PARA TRAP adjustments make adjustments by using the data of CNR CPAR HSC and CSAW Decrease CPAR in case of the distortion shown in Fig a On the contrary increase CPAR in case of this distortion shown in Fig b Decrease CSAW in case of the distortion shown in Fig c O...

Page 16: ...es optimum focus and most anticlockwise using the focus volume F1 of Fly Back Transformer T461 Set it at the position where the screen centre becomes optimum focus and most anticlockwise using the focus volume F2 of Fly Back Transformer T461 FOCUS Focus adjustment 1 Horizontal Focus Using F1 volume of T461 FBT Focus adjustment 2 Vertical Focus Using F2 volume of T461 FBT Circuit adjustment Volume ...

Page 17: ...n 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 18 4 Vary the BRIGHTNESS control to both extremes to be sure the high voltage does not exceed the limit under any condition...

Page 18: ...T BCUT GDRV BDRV BRTC COLP COLS SCNT SRY SBY HPOS R CUTOFF B W G CUTOFF B W B CUTOFF B W R DRIVE B DRIVE SUB BRIGHT CEN SUB COLOR CEN PAL SUB COLOR CEN SECAM SUB CONTRAST SECAM R Y SECAM B Y H POSITION WIDE Item Adjustment Reference data 40H 40H 40H 40H 40H 40H 3CH 3CH 07H 08H 07H 09H Item Adjustment Reference data VPOS1 HIT VLIN WID PARA CNR TRAP RAGC CSAW CPAR HSC V POSITION WIDE HEIGHT WIDE V L...

Page 19: ...EO L MONO AUDIO R 3 LOCATION OF CONTROLS MENU VOLUME DOWN VOLUME UP POSITION DOWN POSITION UP VIDEO 3 HEAD PHONE ON TIMER INDICATOR POWER INDICATOR MAIN SWITCH EXIT AERIAL TERMINAL VIDEO 1 21PINS FULL VIDEO 2 21PINS S VIDEO AV AUDIO OUT FIXED Front Rear terminals ...

Page 20: ...N SELECT SINGLE DIGIT DOUBLE DIGIT FLOF KEYS PICTURE MENU POSITION UP DOWN SELECT MENU OPTION SELECT MENU NOT USED FOR THIS MODEL 16 9 DISPLAY MUTE ON STAND BY POSITION NUMBER KEYS TEN KEYS VIDEO INPUT TEXT MODE SELECT OPTION VOLUME ADJUST LEVEL EXIT MENU STEREO BILINGUAL TEXT MODE HOLD REVEAL CONCEAL F T B FULL TOP BOTTOM TEXT CLEAR TIME DISPLAY TV MODE VCR CONTROL REWIND PLAY FAST WIND STOP ...

Page 21: ... L R TV L R AV SW 21PIN FULL 21PIN 3 FRONT 3 REAR MEMORY µ CON I 2 C BUS HYBRID CONVERTER TRANS B VOLTAGE RGB Y C Y C CHROMA VIDEO DEF Q501 Q302 VIDEO OUT VM V OUT H OUT EW F B T H V D Y V H CRT Q301 Q711 Q712 Q404 DPC Q901 Q903 Q905 1 2 I 2 C BUS CONTROL V L R S V L R HEAD PHONE Q608 AUDIO OUT L R QR01 SUB µ CON ...

Page 22: ...23 PF 0 022 F C326 24797010 EL 1 F 20 50V C327 24794471 EL 470 F 20 16V C332 24212102 CD 1000pF 10 C345 24591561 PF 560pF C366 24082049 PF 0 047 F 100V C370 24794100 EL 10 F 20 16V C371 24797100 EL 10 F 20 50V C374 24797470 EL 47 F 20 50V C375 24797470 EL 47 F 20 50V C403 24590822 PF 8200pF C404 24797478 EL 0 47 F 20 50V C410 24214471 CD 470pF 10 500V C413 24214821 CD 820pF 10 500V C416 24678010 E...

Page 23: ... C643 24797479 EL 4 7 F 20 50V C644 24668102 EL 1000 F 20 35V C645 24668102 EL 1000 F 20 35V C647 24232103 CD 0 01 F 80 20 C648 24797479 EL 4 7 F 20 50V C649 24797479 EL 4 7 F 20 50V C669 24797330 EL 33 F 20 50V C670 24797330 EL 33 F 20 50V C674 24591561 PF 560pF C677 24591561 PF 560pF C696 24793101 EL 100 F 20 10V C704 24591822 PF 8200pF C705 24797229 EL 2 2 F 20 50V C707 24794470 EL 47 F 20 16V ...

Page 24: ... F 20 50V CV06 24797010 EL 1 F 20 50V CV07 24794100 EL 10 F 20 16V CV08 24797010 EL 1 F 20 50V CV09 24794100 EL 10 F 20 16V CV10 24794100 EL 10 F 20 16V CV11 24232103 CD 0 01 F 80 20 CV12 24794100 EL 10 F 20 16V CV13 24797010 EL 1 F 20 50V CV15 24794100 EL 10 F 20 16V CV16 24232103 CD 0 01 F 80 20 CV17 24794101 EL 100 F 20 16V CV24 24794101 EL 100 F 20 16V CV26 24797470 EL 47 F 20 50V CV31 2479422...

Page 25: ...CF 680 ohm R434 24366271 CF 270 ohm R434 24366472 CF 4700 ohm R435 24366184 CF 180k ohm R436 24366153 CF 15k ohm R437 24366272 CF 2700 ohm R438 24366103 CF 10k ohm R439 24366102 CF 1k ohm R441 24382222 OMF 2200 ohm 1W R442 24366333 CF 33k ohm R442 24533151 FR 150 ohm 2W R443 24366563 CF 56k ohm R444 24366563 CF 56k ohm R445 24321129 MF 1 2 ohm 1 2W R445 24366563 CF 56k ohm R451 24366123 CF 12k ohm...

Page 26: ...366681 CF 680 ohm R808 24019484 PTC Thermistor 4 5 ohm R814 24366682 CF 6800 ohm R815 24366332 CF 3300 ohm R818 24019461 MF 0 15 ohm 2W R819 24310829 MF 8 2 ohm 1 2W R821 24366101 CF 100 ohm R822 24552103 OMF 10k ohm 1 2W R823 24552822 OMF 8200 ohm 1 2W R827 24366681 CF 680 ohm R828 24366821 CF 820 ohm R829 24321159 MF 1 5 ohm 1 2W R841 24531120 FR 12 ohm 1 2W R842 24552392 OMF 3900 ohm 1 2W R843 ...

Page 27: ... RB09 24366470 CF 47 ohm RB30 24366103 CF 10k ohm RB30 24366105 CF 1M ohm RB31 24366102 CF 1k ohm RB32 24366332 CF 3300 ohm RB33 24366332 CF 3300 ohm RB35 24366102 CF 1k ohm RB36 24366102 CF 1k ohm RB37 24366221 CF 220 ohm RB38 24366331 CF 330 ohm RB39 24366331 CF 330 ohm RB50 24366101 CF 100 ohm RB51 24366472 CF 4700 ohm RC01 24366681 CF 680 ohm RC02 24366681 CF 680 ohm RC07 24366681 CF 680 ohm R...

Page 28: ...46 Coil Peaking TRF4101AT LA02 23103859 Coil Ferrite Bead TEM2011 LA03 23289834 Coil Peaking TRF41R0AT LA04 23103859 Coil Ferrite Bead TEM2011 LA39 23103859 Coil Ferrite Bead TEM2011 LB30 23289840 Coil Peaking TRF4100AT LC01 23289834 Coil Peaking TRF41R0AT LC02 23289834 Coil Peaking TRF41R0AT LC03 23238714 Coil Peaking TRF4100AJ LC04 23238714 Coil Peaking TRF4100AJ LC05 23238714 Coil Peaking TRF41...

Page 29: ...00703 IC SAA5563PS 0Z13 QA02 23905666 IC AT24C1610PC QA03 A6333346 Transistor 2SC2655 Y C QA04 23114458 Transistor RN1206 28Z13G QA05 23314794 Transistor 2PC1815Y QB01 23314791 Transistor 2PA1015Y QB02 23314794 Transistor 2PC1815Y QB30 23314791 Transistor 2PA1015Y QF01 23314794 Transistor 2PC1815Y QR02 A6734590 Transistor 2SC752 G TM Y QR03 23314794 Transistor 2PC1815Y QR04 A6002040 Transistor RN1...

Page 30: ... 8P BB20B 23903022 Socket 8P F470 23144503 Fuse 1 25A 250V F470A 23165433 Holder Fuse F801 23144508 Fuse 4 0A 250V F801A 23165433 Holder Fuse F802 23144506 Fuse 2 5A 250V F802A 23165433 Holder Fuse G101 24366123 CF 12k ohm 28Z13G G103 24366820 CF 82 ohm G108 23238562 Coil Peaking TRF4109AJ G111 23238714 Coil Peaking TRF4100AJ G112 23238714 Coil Peaking TRF4100AJ G113 23115636 Diode 1SS110 TE 28Z13...

Page 31: ...TUNER H001 23321413 Tuner TEDB7 205A 28Z13B H001 23321370 Tuner EGA51L 28Z13G ACCESSORIES ACCESSORIES ACCESSORIES ACCESSORIES ACCESSORIES Y101 23565270 Owner s Manual English 28Z13B Y101 23565287 Owner s Manual English 28Z13G Y102 23565288 Owner s Manual French 28Z13G Y103 23565289 Owner s Manual German 28Z13G Y104 23565290 Owner s Manual Italian 28Z13G Y105 23565291 Owner s Manual Spanish 28Z13G ...

Page 32: ... 32 SPECIFIC INFORMATIONS THIS PAGE IS INTENTIONALLY LEFT BLANK ...

Page 33: ... 33 34 SIGNAL BOARD PD0015 BOTTOM FOIL SIDE ...

Page 34: ... 35 36 POWER DEF BOARD PD0016 BOTTOM FOIL SIDE ...

Page 35: ... 37 38 CONT 1 BOARD PD0017 1 BOTTOM FOIL SIDE CONT 2 BOARD PD0017 2 BOTTOM FOIL SIDE ...

Page 36: ...2SD1763A 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 2SD1554 2SD2253 2SD1556 2SC5143 2SD2553 E C B B C E B CE B C E E C B ON4409 B CE E C B B C E ...

Page 37: ... 41 SPECIFIC INFORMATIONS MEMO ...

Page 38: ... 42 SPECIFIC INFORMATIONS MEMO ...

Page 39: ...TSC For VCR playback 3 58 NTSC For VCR playback Intermediate Frequencies Picture I F carrier frequency 38 9 MHz L VL Sound I F carrier frequency 32 9 MHz Picture Tube 28 inches 660 mm measured on diagonal of viewable picture area 106 deflection Sound Output 5 W 5 W at 10 Distortion Main Speakers 60 mm x 120 mm oval 2 pcs Main Aux Terminals 21 pin socket FULL 21 pin socket S VIDEO AV MONITOR OUTPUT...

Page 40: ......

Reviews:

No comments

Brands by name

Popular brands

Load more brands