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Panasonic TC-21Z80PQ Service Manual
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Panasonic TC-21Z80PQ Service Manual

Gp3 chassis
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Specification
Power Source
Power Consumption
Aerial Impedance
Receiving System
Receiving Channels
VHF
UHF BAND
CATV
Video / Audio / Terminals
RAV In
Monitor Out
High Voltage
Picture Tube
AC AUTO 110-240V, 50 / 60Hz
89 W
75 Ω unbalanced
Coaxial type
NTSC
Regular TV
2-13 (USA STANDARD)
14-69 (USA STANDARD)
1-125 (USA STANDARD)
Video In 1 Vp-p 75 Ω
Audio In Approx. 400mVrms
Video Out 1 Vp-p 75 Ω
Audio Out Approx. 400mVrms
28.0 ± 1.0kV
at zero beam current
A51JXS064X
51cm (21 inches)
Measured diagonally,
TC-21Z80PQ
GP3 Chassis
Audio Output
Dimensions (W x D x H)
Weight (Mass)
Note:
Specifications are subject to change without notice. Mass and
dimensions shown are approximate.
© 2004 Matsushita Electric Industrial Co., Ltd. All
rights
reserved.
distribution is a violation of law.
Order No. MTV0401332C3

Colour Television

90 ° deflection
Height : 464.0 mm
Width : 682.0 mm
Depth : 496 mm
22 kg (Net Wt)
Unauthorized
copying
7 W
and

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Summary of Contents for Panasonic TC-21Z80PQ

  • Page 1: Colour Television

    Order No. MTV0401332C3 Colour Television TC-21Z80PQ GP3 Chassis Specification Power Source AC AUTO 110-240V, 50 / 60Hz 90 ° deflection Power Consumption 89 W Audio Output 75 Ω unbalanced Aerial Impedance Dimensions (W x D x H) Height : 464.0 mm Coaxial type Width : 682.0 mm...

  • Page 2: Table Of Contents

    TC-21Z80PQ CONTENTS Page Page 1 SAFETY PRECAUTIONS 4.4. White Balance (Market Mode CHK 4) 1.1. General Guide 4.5. Adjustment of CRT VRS 1.2. Leakage Current Cold Check 5 CONDUCTOR VIEWS 1.3. Leakage Current Hot Check (See Fig. 1) 5.1. TNP4G269-A BOARD 1.4.

  • Page 3: Safety Precautions

    TC-21Z80PQ 1 SAFETY PRECAUTIONS 1.3. Leakage Current Hot Check (See Fig. 1) 1.1. General Guide 1. Plug the AC cord directly into the AC outlet. Do not use an 1. It is advisable to insert an isolation transformer in the AC isolation transformer for this check.

  • Page 4: Gp3 Block Diagram

    TC-21Z80PQ 1.5. GP3 Block Diagram...

  • Page 5: Service Hints

    TC-21Z80PQ 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.

  • Page 6: Market Mode Function

    TC-21Z80PQ 3 MARKET MODE FUNCTION Outline: MPU controls the functions switching for each ICs through IIC bus in this chassis. The following setting and adjustment can be adjusted by remote control in Market Mode. 1. Selection of Market Mode Adjust the VOLUME “zero” and set OFF TIMER Button to 30 min. Then, simultaneously press the RECALL Button on the remote control and the VOLUME DOWN button - the TV set.

  • Page 7: Adjustment Procedure

    TC-21Z80PQ 4 ADJUSTMENT PROCEDURE 4.1. Adjustment Procedure Item / Preparation Adjustment Procedure +B Voltage Confirm the DC voltage at the indicated test points, as follows : 1. Operate the TV set. TPA 10 : 141.0 ± 1.5V 2. Set control as follows : TPA 8 : 8 ±...

  • Page 8: Convergence

    TC-21Z80PQ 9. Adjust roughly the Low Light controls and make sure that a uniform white field is obtained. 10. Tighten the clamp screw. 7. Fix the Deflection Yoke by re-inserting the DY wedges. 8. If purity error is found, repeat “Colour Purity” adjustment.

  • Page 9: White Balance (Market Mode Chk 4)

    TC-21Z80PQ 4.4. White Balance (Market Mode CHK 4) Preparation 1. Receive a colour bar signal with colour “OFF”, and operate Note: the TV set for more than 30 minutes. Write down the original value for each address adjustment before adjusting anything.

  • Page 10: Adjustment Of Crt Vrs

    TC-21Z80PQ 4.5. Adjustment of CRT VRS NOTE: FOR FLAT CRT ONLY PREPARATION 1. Set DY to CRT not to tilt up and down left and right deflection. 2. Set CY to CRT and set CY magnet primarily. Pur Mg : Set Pur Mg that 2 magnets are (top position) VRS Mag : Set VRS Mg that 2 magnets are (horizontal position) only 21”, 25”...

  • Page 11: Conductor Views

    TC-21Z80PQ 5 CONDUCTOR VIEWS 5.1. TNP4G269-A BOARD...

  • Page 12: Schematic Diagram For Gp3 Chassis

    TC-21Z80PQ 6 SCHEMATIC DIAGRAM FOR GP3 CHASSIS 6.1. SCHEMATIC DIAGRAM FOR GP3 CHASSIS...
  • Page 13 TC-21Z80PQ...

  • Page 14: A Board

    TC-21Z80PQ 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>...
  • Page 15 TC-21Z80PQ 6.2.2. A Board (2 / 5) <1B> <1A> <2B> <2A> <3B> <4B> <3A> <4A> <5A> <5B> <6A> <6B> <7A> <8A> <7B> <9A> <8B> <10A> <9B> <11A> <10B> <12A> <11B> <12B> <13B> <13A> <14B> <14A> <15B> <16B> <15A> <17B> <16A>...
  • Page 16 TC-21Z80PQ 6.2.3. A Board (3 / 5) <1B> <1C> <2C> <2B> <3B> <4B> <3C> <4C> <5C> <6C> <5B> <6B> <7C> <7B> <8B> <9B> <10B> <8C> 11B> <12B> <13B> <9C> <14B> <10C> <15B> <16B> <11C> <12C> <17B> <18B> <13C> <19B> <14C>...
  • Page 17 TC-21Z80PQ 6.2.4. A Board (4 / 5) <1C> <1D> <2C> <2D> <3C> <3D> <4C> <5C> <6C> <7C> <8C> <4D> <9C> <5D> <10C> <6D> <11C> <12C> <7D> <8D> <13C> <14C> <15C> <16C> <17C> <18C>...
  • Page 18 TC-21Z80PQ 6.2.5. A Board (5 / 5) <1D> <2D> <3D> <4D> <5D> <6D> <7D> <8D>...

  • Page 19: L Board

    TC-21Z80PQ 6.3. L Board 6.3.1. L Board (1 / 2) <1A> <2A> <3A> <4A> <5A> <6A> <7A>...
  • Page 20 TC-21Z80PQ 6.3.2. L Board (2 / 2) <1A> <2A> <3A> <4A> <5A> <6A> <7A>...

  • Page 21: Parts Location

    TC-21Z80PQ 7 PARTS LOCATION...

  • Page 22: Replacement Parts List

    TC-21Z80PQ 8 REPLACEMENT PARTS LIST 8.1. Replacement Parts List Notes...

  • Page 23: Replacement Parts List

    TC-21Z80PQ 8.2. Replacement Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks A51JXS064X PICTURE TUBE C3173 ECJ2VF1C105Z C 1UF, Z, 16V EUR7717030 REMOTE CONTROL C3175 ECJ2VF1C105Z C 1UF, Z, 16V...
  • Page 24 TC-21Z80PQ Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C670 ECA1CM100B E 10UF, 16V D551 MA3047HTX DIODE C680 ECJ2YB1H473K C 0.047UF, K, 50V D552 B0HAJP000015 DIODE C685 ECJ2VC1H101K C 100PF , 50V...
  • Page 25 TC-21Z80PQ Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks L852 EXCELSA35B BEAD CORE R1142 ERJ6GEYJ100 M 10OHM,J,1/10W L853 EXCELSA39E BEAD CHOKE R121 ERJ6GEY0R00 M 0OHM,J,1/10W L862 TLTACT1R5K PEAKING COIL R122...
  • Page 26 TC-21Z80PQ Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R553 ERJ6GEYJ223 M 22KOHM,J,1/10W OTHERS R555 ERQ14AJ2R0P F 2.0OHM, J,1/4W TJSF29204 CONNECTOR R556 ER050CKF5603 M 560KOHM,F, 1/2W TJS3A9650 4P CONNECTOR R557...

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