Panasonic TC-25FJ20R Service Manual

Panasonic TC-25FJ20R Service Manual

Gp3 chassis

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Specification
Power Source
Power Consumption
Aerial Terminal
Tuning System
Receiving System
Receiving Channels
VHF BAND
UHF BAND
CATV
Intermediate Frequency
AC AUTO 110-240V, 50 / 60Hz
122 W
Standby condition : 2 W
Impedance : 75 Ω , Coaxial type
Frequency Synthesizer
Auto Search Tuning
Pos : 100 Positions
17 Systems
Regular TV
2-12 (PAL / SECAM B, K1)
0-12 (PAL B AUST.)
1-9 (PAL B N.Z.)
1-12 (PAL / SECAM D)
1-12 (NTSC M Japan)
2-13 (NTSC M U.S.A)
21-69 (PAL G, H, I / SECAM G, K,
28-69 (PAL B AUST.)
13-57 (PAL D, K)
13-62 (NTSC M Japan)
14-69 (NTSC M U.S.A.)
S1-S20 (OSCAR)
1-125 (U.S.A. CATV)
C13-C49 (JAPAN)
S21-S41 (HYPER)
Z1-Z37 (CHINA)
5A, 9A (AUST)
38.0 MHz
TC-25FJ20R
GP3 Chassis
Video
Sound
Colour
Receiving Stereo Sound System
Video / Audio / Terminals
AV 1, 2
Y / P
/ P
B
R
Monitor Out
High Voltage
K1)
Picture Tube
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
distribution is a violation of law.
Order No. MTV0401305C3
Colour Television
31.5 MHz (D, K) / 32.5 MHz (B, G)
32.0 MHz (I) / 32.5 MHz (M)
33.57 MHz (PAL) /
33.6 MHz (SECAM)
34.42 MHz (NTSC) /
33.75 MHz (SECAM)
(Phone Type) Y:1.0Vp-p 75 Ω PB,
PR:0.7Vp-p 75 Ω Video 1.0Vp-p
75 Ω Audio Approx. 400mV 47K Ω
Video 1.0Vp-p 75 Ω
Audio Approx. 400mV 47K Ω
30.0 ( + -1.0kV) at zero
A59QDF891X Type 25 (59 cm)
Measured diagonally,
717 mm x 502 mm x 530.5 mm
reserved.
Unauthorized
AV STEREO
beam current
104 ° deflection
16 W speaker
31 kg (Net)
copying
and

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Summary of Contents for Panasonic TC-25FJ20R

  • Page 1 Order No. MTV0401305C3 Colour Television TC-25FJ20R GP3 Chassis Specification Power Source AC AUTO 110-240V, 50 / 60Hz Video 31.5 MHz (D, K) / 32.5 MHz (B, G) Power Consumption 122 W 32.0 MHz (I) / 32.5 MHz (M) Standby condition : 2 W Sound 33.57 MHz (PAL) /...
  • Page 2: Table Of Contents

    TC-25FJ20R CONTENTS Page Page 1 Safety Precautions 5 Conductor Views 1.1. General Guide 5.1. A-Board 1 / 2 1.2. Leakage Current Cold Check 5.2. A-Board 2 / 2 1.3. Leakage Current Hot Check (See Fig. 1) 6 Schematic Diagrams 1.4. X-Radiation 6.1.
  • Page 3: Safety Precautions

    TC-25FJ20R 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-25FJ20R 1.5. GP3 Block Diagram...
  • Page 5: Service Hints

    TC-25FJ20R 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-25FJ20R 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-25FJ20R 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-25FJ20R 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-25FJ20R 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-25FJ20R 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-25FJ20R 5 Conductor Views 5.1. A-Board 1 / 2...
  • Page 12 TC-25FJ20R 5.2. A-Board 2 / 2...
  • Page 13: Schematic Diagrams

    TC-25FJ20R 6 Schematic Diagrams 6.1. SCHEMATIC DIAGRAM FOR GP3 CHASSIS...
  • Page 14 TC-25FJ20R...
  • Page 15: A Board

    TC-25FJ20R 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>...
  • Page 16 TC-25FJ20R 6.2.2. A Board (2 / 5) <1A> <1B> <2B> <2A> <3B> <3A> <4A> <5A> <4B> <6A> <7A> <5B> <8A> <9A> <10A> <6B> <11A> <12A> <13A> <14A> <7B> <15A> <16A> <17A> <8B> <18A> <9B> <10B> <11B> <19A> <20A> <12B> <21A>...
  • Page 17 TC-25FJ20R 6.2.3. A Board (3 / 5) <1B> <1C> <2B> <2C> <3B> <3C> <4C> <5C> <6C> <4B> <5B> <6B> <7C> <8C> <9C> <10C> <7B> <11C> <8B> <12C> <9B> <13C> <10B> <14C> <11B> <15C> <12B> <16C> <13B> <17C>...
  • Page 18 TC-25FJ20R 6.2.4. A Board (4 / 5) <1C> <1D> <2C> <2D> <3C> <3D> <4C> <5C> <4D> <6C> <5D> <6D> <7D> <8D> <9D> <10D> <11D> <12D> <7C> <13D> <8C> <14D> <9C> <15D> <10C> <16D> <17D> <18D> <11C> <19D> <12C> <13C> <14C>...
  • Page 19 TC-25FJ20R 6.2.5. A Board (5 / 5) <1D> <2D> <3D> <4D> <5D> <6D> <7D> <8D> <9D> <10D> <11D> <12D> <13D> <14D> <15D> <16D> <17D> <18D> <19D>...
  • Page 20: L Board

    TC-25FJ20R 6.3. L Board 6.3.1. L Board (1 / 3) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A> <9A> <10A>...
  • Page 21 TC-25FJ20R 6.3.2. L Board (2 / 3) <1A> <1B> <2A> <3A> <4A> <5A> <2B> <6A> <7A> <3B> <8A> <4B> <9A> <10A> <5B>...
  • Page 22 TC-25FJ20R 6.3.3. L Board (3 / 3) <1B> <2B> <3B> <4B> <5B>...
  • Page 23: K Board

    TC-25FJ20R 6.4. K Board 6.4.1. K Board (1 / 2) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A>...
  • Page 24 TC-25FJ20R 6.4.2. K Board (2 / 2) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A>...
  • Page 25: Yuv Board

    TC-25FJ20R 6.5. YUV Board 6.5.1. YUV Board (1 / 2) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A>...
  • Page 26 TC-25FJ20R 6.5.2. YUV Board (2 / 2) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A>...
  • Page 27: Yc Board

    TC-25FJ20R 6.6. YC Board 6.6.1. YC Board (1 / 2) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A> <9A> <10A> <11A> <12A>...
  • Page 28 TC-25FJ20R 6.6.2. YC Board (2 / 2) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A> <9A> <10A> <11A> <12A>...
  • Page 29: Ew Board

    TC-25FJ20R 6.7. EW Board 6.7.1. EW Board (1 / 2) <1A> <2A> <3A> <4A> <5A> <6A>...
  • Page 30 TC-25FJ20R 6.7.2. EW Board (2 / 2) <1A> <2A> <3A> <4A> <5A> <6A>...
  • Page 31: Parts Locations

    TC-25FJ20R 7 Parts Locations...
  • Page 32: Replacement Parts List

    TC-25FJ20R 8 Replacement Parts List 8.1. Replacement Parts List Notes...
  • Page 33: Replacement Parts List

    TC-25FJ20R 8.2. Replacement Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks A59QDF891X PICTURE TUBE C2106 ECJ2ZF1C105Z C 1UF, Z, 16V EASG15S02H2 SPEAKER C2109 ECA1CM100B E 10UF, 16V EUR7717010...
  • Page 34 TC-25FJ20R Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C4805 ECA1CM101B E 100UF, 16V C570 ECJ2VC1H560J C 56PF, J, 50V C4806 ECA1CM471B E 470UF, 16V C580 ECA1HM220B E 22UF, 50V...
  • Page 35 TC-25FJ20R Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C841 ECKCNA471MB7 C 470PF, M, D555 MA152KTX DIODE C842 ECKCNA102MB7 C 1000PF, M, D556 B0HAMV000027 DIODE C850 ECJ2VF1H224Z C 0.22UF, Z, 50V...
  • Page 36 TC-25FJ20R Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks L170 G0C100K00008 COIL Q103 2SD2114KT TRANSISTOR L181 G0C100K00008 COIL Q105 B1ABCE000005 TRANSISTOR L182 TALV35VB6R8K PEAKING COIL Q1110 2SB709ATX TRANSISTOR L183 TALV35VB5R6K...
  • Page 37 TC-25FJ20R Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks RESISTORS R2120 ERJ6GEYJ184 M 180KOHM,J,1/10W R003 ERJ6GEYJ100 M 10OHM,J,1/10W R2140 ERJ6GEYJ101 M 100OHM,J,1/10W R004 ERG3FJ183H M 18KOHM,J, 3W R2302 ERJ6GEYJ153 M 15KOHM,J,1/10W...
  • Page 38 TC-25FJ20R Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R392 ERJ6GEYJ101 M 100OHM,J,1/10W R5521 ERJ6GEYJ331 M 330OHM,J,1/10W R393 ERJ6GEYJ102 M 1KOHM,J,1/10W R5522 ERJ6GEYJ332 M 3.3KOHM,J,1/10W R394 ERJ6GEYJ102 M 1KOHM,J,1/10W R5523 ERJ6GEYJ222 M 2.2KOHM,J,1/10W...
  • Page 39 TC-25FJ20R Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R620 ERJ6GEYJ101 M 100OHM,J,1/10W R953 ERJ6GEYJ332 M 3.3KOHM,J,1/10W R623 ERJ6GEYJ331 M 330OHM,J,1/10W R954 ERJ6GEYJ561 M 560OHM,J,1/10W R636 ERJ6GEYJ561 M 560OHM,J,1/10W R956...
  • Page 40 TC-25FJ20R Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks JA16 ERJ6GEY0R00 M 0OHM,J,1/10W JS900 ERJ6GEY0R00 M 0OHM,J,1/10W JA17 ERJ6GEY0R00 M 0OHM,J,1/10W TJS3A9660 CONNECTOR JA19 ERJ6GEY0R00 M 0OHM,J,1/10W TJS3A9890 9P CONNECTOR...

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