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Panasonic TC-21FG20P Service Manual
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Panasonic TC-21FG20P Service Manual

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Specifications
Power Source :
Power Consumption :
Aerial Impedance :
Receiving Channels :
VHF
CATV
UHF
Intermediate Frequency :
Video
Sound
Colour
All manuals and user guides at all-guides.com
AC AUTO 110-240V, 50/60 Hz
83W
75Ω unbalanced
Coaxial type
2-13 (USA STANDARD)
1-125 (USA STANDARD)
14-69 (USA STANDARD)
38.0 MHz
31.5 MHz (D, K, K1)
32 MHz (I)
32.5 MHz (B, G)
33.5 MHz (M)
33.57 MHz (PAL)
33.6 MHz (SECAM)
33.75 MHz (SECAM)
34.42 MHz (NTSC)
Colour Television
TC-21FG20P
GP31 Chassis
Video / Terminals :
RAV In
Monitor Out
High Voltage :
Picture Tube :
Audio Output :
Dimensions :
Mass :
Specifications are subject to change without notice.
Mass and dimensions shown are approximate.
© 2005 Matsushita Electric Industrial Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO. MTV0501396C3
AV1, 2
Video In 1 Vp-p 75Ω
Audio In Approx. 400mVrms
Video Out 1 Vp-p 75Ω
Audio Out Approx. 400mVrms
27.5kV±1.5
at zero beam current
A51LXR195X
51cm (21 inches)
Measured diagonally,
90° deflection
16.0W
Height : 473 mm
Width : 648 mm
Depth : 488 mm
24 kg (Net Wt.)
Unauthorized
copying
and

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Summary of Contents for Panasonic TC-21FG20P

  • Page 1 All manuals and user guides at all-guides.com ORDER NO. MTV0501396C3 Colour Television TC-21FG20P GP31 Chassis Specifications Power Source : AC AUTO 110-240V, 50/60 Hz Video / Terminals : AV1, 2 Power Consumption : RAV In Video In 1 Vp-p 75Ω...

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com CONTENTS Page Page 1 Safety Precautions 2.5. Adjustment Procedure 1.1. General Guide Lines 2.6. PAL Colour 1.2. Leakage Current Cold Check 2.7. Adjustment 1.3. Leakage Current Hot Check (Fig. 1) 3 Conductor Views 1.4.

  • Page 3: Safety Precautions

    All manuals and user guides at all-guides.com 1 Safety Precautions 1.1. General Guide Lines 1. It is advisable to insert an isolation transformer in the AC supply before servicing this hot chassis. 2. When servicing, observe the original lead dress, especially the lead dress in the high voltage circuits. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

  • Page 4: Gp31 Chassis Block Diagram

    All manuals and user guides at all-guides.com 1.5. GP31 Chassis Block Diagram...

  • Page 5: Service Hints

    All manuals and user guides at all-guides.com 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. Fig.

  • Page 6: Adjustment For White Balance

    All manuals and user guides at all-guides.com 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.

  • Page 7: Adjustment Procedure

    All manuals and user guides at all-guides.com 2.5. Adjustment Procedure 2.5.1. +B Voltage 2.5.3. High Voltage Item / preparation Item / preparation 1. Operate the TV set. 1. Receive the crosshatch pattern. 2. Set control as follows : 2. Set to 0 Beam. Brightness ...

  • Page 8: Pal Colour

    All manuals and user guides at all-guides.com 2.6. PAL Colour 1. Receive the PAL B/G studio colour bar pattern and adjust local frequency at the best tuned position. 2. Pic Menu: Dynamic Normal, Confirm Contrast - 100 DAC, Sub Contrast - 21 dac. 3.
  • Page 9 All manuals and user guides at all-guides.com Before Colour Purity, Convergence and White Balance adjustment are attempted, V. Height, H. Centre and Focus adjustments must be completed. Colour Purity Convergence 1. Set the Brightness and Contrast controls to their maximum 1.
  • Page 10 All manuals and user guides at all-guides.com Adjustment of CRT VRS 1. Preparation a. Set DY to CRT not to tilt up and down left and right deflection. b. Set CY to CRT and set CY magnet primarily (Fig. 1) Purity magnet : Set purity magnet that 2 magnets are (TOP POSITION) VRS magnet : Set purity magnet 2 magnets are (HORIZONTAL POSITION) 2.
  • Page 11 All manuals and user guides at all-guides.com Fig. 10 Fig. 11 Notes: 1. Wedge A, B and C should be inserted following the sequence of 1, 2 and 3 shown in Fig. 11. 2. The wedges should be set 120° apart from each other. 3.

  • Page 12: Conductor Views

    All manuals and user guides at all-guides.com 3 Conductor Views...

  • Page 13: Schematic Diagram

    All manuals and user guides at all-guides.com 4 Schematic Diagram...
  • Page 14 All manuals and user guides at all-guides.com...

  • Page 15: A Board

    All manuals and user guides at all-guides.com 4.1. A Board 4.1.1. A Board (1/5) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A>...
  • Page 16 All manuals and user guides at all-guides.com 4.1.2. A Board (2/5) <1A> <1B> <2B> <2A> <3B> <3A> <4B> <4A> <5B> <5A> <6A> <6B> <7B> <7A> <8A> <8B>...
  • Page 17 All manuals and user guides at all-guides.com 4.1.3. A Board (3/5) <1B> <1C> <2B> <2C> <3B> <4B> <3C> <5B> <4C> <5C> <6C> <6B> <7B> <7C> <8B> <8C>...
  • Page 18 All manuals and user guides at all-guides.com 4.1.4. A Board (4/5) <1C> <1D> <2D> <2C> <3D> <4D> <3C> <5D> <4C> <6D> <5C> <6C> <7D> <8D> <7C> <8C>...
  • Page 19 All manuals and user guides at all-guides.com 4.1.5. A Board (5/5) <1D> <2D> <3D> <4D> <5D> <6D> <7D> <8D>...

  • Page 20: L Board

    All manuals and user guides at all-guides.com 4.2. L Board 4.2.1. L Board (1/3) <1A> <2A> <3A> <4A> <5A> <6A>...
  • Page 21 All manuals and user guides at all-guides.com 4.2.2. L Board (2/3) <1A> <1A> <1B> <2A> <2A> <2B> <3A> <3A> <4A> <4A> <5A> <5A> <3B> <4B> <5B> <6A> <6A> <6B>...
  • Page 22 All manuals and user guides at all-guides.com 4.2.3. L Board (3/3) <1B> <2B> <3B> <4B> <5B> <6B>...

  • Page 23: Parts Locations

    All manuals and user guides at all-guides.com 5 Parts Locations...

  • Page 24: Replacement Parts List

    All manuals and user guides at all-guides.com 6 Replacement Parts List...

  • Page 25: Replacement Parts List

    E 0.1UF, 50V K2JZ2B000021 ANTENNA PLUG C2305 ECEA1HKN0R1 E 0.1UF, 50V TBM4G1237 MODEL NAME PLATE C2306 F2A1H100A162 E 10UF, 50V TBM4G3013 PANASONIC BADGE C2380 ECA1CM101B E 100UF, 16V TBX4G90411 POWER BUTTON C2381 ECA1CM100B E 10UF, 16V TES4G206 COIL SPRING C3020...
  • Page 26 All manuals and user guides at all-guides.com Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C612 ECJ2VB1H472K C 4700PF, K, 50V D1151 B3AGA0000089 DIODE C613 ECJ2VB1H472K C 4700PF, K, 50V D2380 B0ACQJ000001 DIODE C614 ECQV1H104JL...
  • Page 27 All manuals and user guides at all-guides.com Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L3136 J0JKA0000038 BEAD CORE R1111 D0GD103JA017 F 10KOHM,J, 1/10W L3137 J0JKA0000038 BEAD CORE R1112 D0GD332JA017 F 3.3KOHM,J, 1/10W L352 J0JKA0000022 BEAD CORE...
  • Page 28 All manuals and user guides at all-guides.com Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R401 ERDS2TJ104 C 100KOHM,J, 1/4W R817 ERDS1TJ100 C 10OHM,J, 1/2W R402 D0GD470JA017 F 47OHM,J, 1/10W R818 ERG2FJ473H M 47KOHM, J , 2W R403 ER0S2CHF2491...
  • Page 29 All manuals and user guides at all-guides.com Ref. Part No. Part Name & Description Remarks K1KA13A00138 CONNECTOR K1KA13A00138 CONNECTOR K1ZZ00001301 CONNECTOR LF801 ELF21V012S LINE FILTER PC860 B3PAA0000261 PHOTO COUPLER RL801 K6B1CDA00029 RELAY RM1104 B3RAC0000014 REMOCON RECEIVER SC351 K3B095A00001 CRT SOCKET SW1001 EVQ11G05R SWITCH...

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