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Panasonic TC-21GX30P Service Manual
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Panasonic TC-21GX30P Service Manual

Panasonic TC-21GX30P Service Manual

Gl1 chassis
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Specifications
Power Source :
Power Consumption :
Aerial Impedance :
Receiving System :
Receiving Channels :
VHF
UHF
CATV
Audio Terminal :
DVD
Y
PB
PR
AV 1, 2
Video In
1 Vp-p, 75Ω
Audio In
Approx. 0.5V, 47kΩ
Monitor Out
AC AUTO 110-240V, 50/60 Hz
58W
75Ω unbalanced
Coaxial type
17 Systems
2-13(U.S.A Standard)
14-69(U.S.A Standard)
1-125(U.S.A Standard)
1.0 Vp-p, 75Ω
0.7 Vp-p, 75Ω
0.7 Vp-p, 75Ω
TC-21GX30P
GL1 Chassis
Video Out
Audio Out
High Voltage :
Picture Tube :
Audio Output :
Dimensions :
Mass :
Specifications are subject to change without notice.
Mass and dimensions shown are approximate.
© 2007 Matsushita Electric Industrial Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO. MTV0701517CE
Colour Television
1 Vp-p, 75Ω
Approx. 0.5V, 1kΩ
27.5kV ±1.5
at zero beam current
A51LYZ395X65
50.5cm (21 inches)
Measured diagonally,
90° deflection
5W + 5w = 10W
Height : 472 mm
Width : 598 mm
Depth : 479 mm
22.5 kg (Net Wt.)
Unauthorized
copying
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Summary of Contents for Panasonic TC-21GX30P

  • Page 1 ORDER NO. MTV0701517CE Colour Television TC-21GX30P GL1 Chassis Specifications Power Source : AC AUTO 110-240V, 50/60 Hz Video Out 1 Vp-p, 75Ω Power Consumption : Audio Out Approx. 0.5V, 1kΩ Aerial Impedance : 75Ω unbalanced High Voltage : 27.5kV ±1.5...
  • Page 2 GL1 BLOCK DIAGRAM EEPROM IC1103 Antenna SDA SCL V OUT TUNER H OUT Rear Inputs CVBS2 AV1: V/L/R defl. coil IC601 Front Inputs CVBS4 AV2 : V/L/R AUDIO MONITOR Audio Out Mon Out SPEAKER IC2302 IC851 5V & 8V PRIMARY IC801 IC880 LIFE CCT...

  • Page 4: Service Hints

    TC-21GX30P 2 Service Hints 2.1. Service Position for E-Board 1. Remove the back cover. 2. Stand the TV set as shown in Fig. 2. 3. Remove the A-Board from the TV set by pulling the main board out as shown in Figure 2.
  • Page 5 TC-21GX30P d. After selecting the required option mode press Vol up / Vol down to adjust correct option. OSD will change to RED colour. Press digit “0” to memorize data. e. CHK2 Press digit key “2” to move forward to CHK2.
  • Page 6 TC-21GX30P j. Press digit key “4” to move forward from V-SLOPE ------> V-SHIFT Press digit key “3” to move backward from V-SHIFT ------> V-SLOPE k. Press volume up / volume down to adjust required setting. l. CHK4 Press digit key “2” to move forward to CHK 4.

  • Page 7: Adjustment For White Balance

    TC-21GX30P 2.3. Adjustment for White Balance Preparation: 1. Receive the white balance pattern and aging should have been performed over 30 minutes. 2. Set the picture menu to DYNAMIC NORMAL. 3. Degausse the CRT face. 4. Fix the CRT colour analyzer receiver unit to CRT face.

  • Page 8: Adjustment Procedure

    TC-21GX30P 2.5. Adjustment Procedure 2.5.1. +B Voltage Item / preparation 1. Operate the TV set. 2. Set control as follows : Brightness ... minimum Contrast ....minimum Adjustment procedure 1. Confirm the DC voltage at the indicated test points, as follows : TPA 10 : 141 ±...
  • Page 9 TC-21GX30P 4.2. L Board 4.2.1. L Board (1/3) <1A> <2A> <3A> <4A> <5A>...
  • Page 10 TC-21GX30P 4.2.2. L Board (2/3) <1A> <1B> <2A> <3A> <4A> <2B> <3B> <4B> <5B> <5A> <6B>...
  • Page 11 TC-21GX30P 4.2.3. L Board (3/3) <1B> <2B> <3B> <4B> <5B> <6B>...

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