Panasonic TC-21Z80PQ Service Manual Download Page 20 | Manualshive

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Panasonic TC-21Z80PQ Service Manual Download Page 20

6.3.2. L Board (2 / 2)

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TC-21Z80PQ

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Summary of Contents for TC-21Z80PQ

Page 1: ...io Out Approx 400mVrms High Voltage 28 0 1 0kV at zero beam current Picture Tube A51JXS064X 51cm 21 inches Measured diagonally 2004 Matsushita Electric Industrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law TC 21Z80PQ GP3 Chassis 90 deflection Audio Output 7 W Dimensions W x D x H Height 464 0 mm Width 682 0 mm Depth 496 mm Weight Mass 22 kg Net Wt Note S...

Page 2: ...ADJUSTMENT PROCEDURE 7 4 1 Adjustment Procedure 7 4 2 Colour Purity 7 4 3 Convergence 8 4 4 White Balance Market Mode CHK 4 9 4 5 Adjustment of CRT VRS 10 5 CONDUCTOR VIEWS 11 5 1 TNP4G269 A BOARD 11 6 SCHEMATIC DIAGRAM FOR GP3 CHASSIS 12 6 1 SCHEMATIC DIAGRAM FOR GP3 CHASSIS 12 6 2 A Board 14 6 3 L Board 19 7 PARTS LOCATION 21 8 REPLACEMENT PARTS LIST 22 8 1 Replacement Parts List Notes 22 8 2 Re...

Page 3: ...tc When the exposed metallic part has a return pathto the chassis the reading should be between 4 MΩ Ω Ω Ω and 20 MΩ Ω Ω Ω When the exposed metal does not have a return path to the chassis the reading must be zero 1 3 Leakage Current Hot Check See Fig 1 1 Plug the AC cord directly into the AC outlet Do not use an isolation transformer for this check 2 Connect a 2 kΩ 10 W resistor in series with an...

Page 4: ...1 5 GP3 Block Diagram 4 TC 21Z80PQ ...

Page 5: ...2 SERVICE HINTS 2 1 How To Move Chassis Into Service Position 1 Remove 9 screws 2 Draw out Main Chassis 3 Stand the Main Chassis 5 TC 21Z80PQ ...

Page 6: ... each CHK Mode by pressing 1 or 2 of 10 key button on the remote control 3 Set to normal mode Press the volume down button on front control together press the off timer button on remote control 1 CHK 1 OPTION 1 F2 OPTION 2 00 OPTION 3 8C OPTION 4 77 OPTION 5 95 OPTION 6 34 OPTION 7 91 OPTION 8 25 OPTION 9 00 2 CHK 2 RF AGC 17 BRT 50 S TINT 31 TINT 50 S COL 33 COL 50 CONT 100 3 CHK 3 V SLOPE 37 H B...

Page 7: ...l of 69 1 2 dBU with 75Ω loaded 1 Select RF AGC indication in CHK2 on Screen by remote control at factory mode 2 Connect digital multimeter to RF AGC at Tuner 2 Set RF AGC by using remote control Volume or Volume button until voltage AGC at Tuner reaches 2 6 0 1V at TPA 15 Tuner point 3 Increase RF signal strength by 2dB confirm AGC at Tuner voltage drop High Voltage 1 Receive the crosshatch patte...

Page 8: ... control to obtain a clear pattern 3 Adjust Red and Blue line at center of the screen 4 Adjust Red and Blue with Green line at center of the screen by rotating RB G static convergence magnet 5 Lock convergence magnets with silicone sealer 6 Remove the DY wedges and slightly tilt the Deflection Yoke vertically 7 Fix the Deflection Yoke by re inserting the DY wedges 8 If purity error is found repeat...

Page 9: ...adjust the G CUTOFF setting in the following procedure 4 Adjust the remaining R and B CUTOFF controls so as to get a white horizontal line on the screen 5 Return to full field SCAN by pushing the position 5 key on the remote control 6 Adjust the R Drive and B Drive controls as to obtain a uniform white on the white bar of the greyscale pattern 7 Confirm correct B W rendition and greyscale tracking...

Page 10: ...magnets are top position VRS Mag Set VRS Mg that 2 magnets are horizontal position only 21 25 29 3 Set geomagnetic corection DAC AS IN TABLE 1 ADJUSTMENT 1 Receive the white balance pattern 2 Adjust V CENTER 3 Set R B CUT OFF to minimum and set G CUT OFF to center 4 Receive the aging pattern 5 Set 2 magnet of vertical position to up and down equally so that center part of CRT Fig 4 10 TC 21Z80PQ ...

Page 11: ...5 CONDUCTOR VIEWS 5 1 TNP4G269 A BOARD 11 TC 21Z80PQ ...

Page 12: ...6 SCHEMATIC DIAGRAM FOR GP3 CHASSIS 6 1 SCHEMATIC DIAGRAM FOR GP3 CHASSIS 12 TC 21Z80PQ ...

Page 13: ...13 TC 21Z80PQ ...

Page 14: ...6 2 A Board 6 2 1 A Board 1 5 1A 2A 3A 4A 5A 6A 7A 8A 9A 10A 11A 12A 13A 14A 15A 16A 17A 18A 19A 20A 21A 22A 23A 14 TC 21Z80PQ ...

Page 15: ...6 2 2 A Board 2 5 1A 2A 3A 4A 5A 6A 7A 8A 9A 10A 11A 12A 13A 14A 15A 16A 17A 18A 19A 20A 21A 22A 23A 1B 2B 3B 4B 5B 6B 7B 8B 9B 10B 11B 12B 13B 14B 15B 16B 17B 18B 19B 20B 21B 22B 15 TC 21Z80PQ ...

Page 16: ...6 2 3 A Board 3 5 1B 2B 3B 4B 5B 6B 7B 8B 9B 10B 11B 12B 13B 14B 15B 16B 17B 18B 19B 20B 21B 22B 1C 2C 3C 4C 5C 6C 7C 8C 9C 10C 11C 12C 13C 14C 15C 16C 17C 18C 16 TC 21Z80PQ ...

Page 17: ...6 2 4 A Board 4 5 1C 2C 3C 4C 5C 6C 7C 8C 9C 10C 11C 12C 13C 14C 15C 16C 17C 18C 1D 2D 3D 4D 6D 7D 8D 5D 17 TC 21Z80PQ ...

Page 18: ...6 2 5 A Board 5 5 1D 2D 3D 4D 6D 7D 8D 5D 18 TC 21Z80PQ ...

Page 19: ...6 3 L Board 6 3 1 L Board 1 2 1A 2A 3A 4A 5A 6A 7A 19 TC 21Z80PQ ...

Page 20: ...6 3 2 L Board 2 2 1A 2A 3A 4A 5A 6A 7A 20 TC 21Z80PQ ...

Page 21: ...7 PARTS LOCATION 21 TC 21Z80PQ ...

Page 22: ...8 1 Replacement Parts List Notes 8 REPLACEMENT PARTS LIST 22 TC 21Z80PQ ...

Page 23: ...C3173 ECJ2VF1C105Z C 1UF Z 16V C3175 ECJ2VF1C105Z C 1UF Z 16V C350 ECA1CM101B E 100UF 16V C354 ECJ2VC1H330J C 33PF J 50V C355 ECJ2VC1H330J C 33PF J 50V C356 ECJ2VC1H330J C 33PF J 50V C359 ECQM4104KZ P 0 1UF K 400V C368 ECJ2VC1H122J C 1200PF J 50V C370 ECKW3D102KBP C 1000PF K 2KV C371 ECEA1CN100U E 10UF 16V C373 ECA2EM100B E 10UF 250V C377 ECA1CM101B E 100UF 16V C402 ECA1HM101B E 100UF 50V C403 ECA...

Page 24: ...52KTX DIODE D365 MTZJ10C ZENER DIODE D375 MA152KTX DIODE D402 B0HAHM000008 DIODE D403 B0ACCK000005 DIODE D404 B0ACCK000005 DIODE D511 MA4108J DIODE D512 MA171 DIODE D513 B0HAJP000015 DIODE D515 B0HAJP000015 DIODE D520 MA152KTX DIODE Ref No Part No Part Name Description Remarks D551 MA3047HTX DIODE D552 B0HAJP000015 DIODE D555 MA152KTX DIODE D556 ERB06 15 DIODE D557 B0HAMQ000001 DIODE D558 MA185 DI...

Page 25: ... 1 8KOHM J 1 10W Ref No Part No Part Name Description Remarks R1142 ERJ6GEYJ100 M 10OHM J 1 10W R121 ERJ6GEY0R00 M 0OHM J 1 10W R122 ERJ6GEY0R00 M 0OHM J 1 10W R182 ERJ6GEYJ221 M 220OHM J 1 10W R190 ERJ6GEYJ391 M 390OHM J 1 10W R2120 ERJ6GEYJ103 M 10KOHM J 1 10W R2121 ERJ6GEYJ683 M 68KOHM J 1 10W R2122 ERJ6GEYJ683 M 68KOHM J 1 10W R2302 ERJ6GEYJ153 M 15KOHM J 1 10W R2303 ERJ6GEYJ472 M 4 7KOHM J 1 ...

Page 26: ... R864 ERJ6GEYJ103 M 10KOHM J 1 10W R866 ERJ6GEYJ472 M 4 7KOHM J 1 10W R867 D0AE362JA046 C 3 6KOHM J 1 4W R868 ERDS1TJ471 C 470OHM J 1 2W R871 ERDS1TJ103 C 10KOHM J 1 2W R872 ERJ6GEYJ272 M 2 7KOHM J 1 10W R873 ERJ6GEYJ472 M 4 7KOHM J 1 10W R875 ERJ6GEYJ103 M 10KOHM J 1 10W TRANSFORMERS T501 ZTFN82001A FLYBACK TRANS T553 ETH19Y210AZ H DRIVE TRANS T801 ETS29AV136AD SWITCHING TRANS Ref No Part No Part...

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