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Panasonic TC-21FG20M-MALAYSIA Service Manual
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Panasonic TC-21FG20M-MALAYSIA Service Manual

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Specifications
Power Source :
Power Consumption :
Aerial Impedance :
Receiving System :
Receiving Channels :
VHF
UHF
CATV
Intermediate Frequency :
Video
Sound
AC AUTO 110-240V, 50/60 Hz
75Ω unbalanced
Coaxial type
17 Systems
1-11 PAL B (Australia & N.Zealand)
1-12 PAL/SECAM D
1-12 NTSC M JAPAN
2-12 PAL/SECAM B, G
2-13 NTSC M U.S.A.
21-69 PAL G I/SECAM B, G, K1
28-69 PAL G (Australia)
13-56 PAL D
13-52 NTSC M JAPAN
14-69 NTSC NTSC M U.S.A.
S1-S41 (Hyper)
38.0 MHz
31.5 MHz (D, K, K1)
32 MHz (I)
32.5 MHz (B, G)
33.5 MHz (M)
TC-21FG20M-
MALAYSIA
GP31 Chassis
Colour
83W
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.
ORDER NO. MTV0501366C3
Colour Television
33.75 MHz (SECAM)
Audio In Approx. 400mVrms
Video Out 1 Vp-p 75Ω
Audio Out Approx. 400mVrms
at zero beam current
Measured diagonally,
© 2005 Matsushita Electric Industrial Co., Ltd. All
rights
reserved.
Unauthorized
distribution is a violation of law.
33.57 MHz (PAL)
33.6 MHz (SECAM)
34.42 MHz (NTSC)
AV1, 2
Video In 1 Vp-p 75Ω
27.5kV±1.5
A51LXR195X
51cm (21 inches)
90° deflection
16.0W
Height : 473 mm
Width : 648 mm
Depth : 488 mm
24 kg (Net Wt.)
copying
and

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Summary of Contents for Panasonic TC-21FG20M-MALAYSIA

  • Page 1 ORDER NO. MTV0501366C3 Colour Television TC-21FG20M- MALAYSIA GP31 Chassis Specifications Power Source : AC AUTO 110-240V, 50/60 Hz Colour 33.57 MHz (PAL) Power Consumption : 33.6 MHz (SECAM) Aerial Impedance : 75Ω unbalanced 33.75 MHz (SECAM) Coaxial type 34.42 MHz (NTSC) Receiving System : 17 Systems Video / Terminals :...

  • Page 2: Table Of Contents

    TC-21FG20M-MALAYSIA 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. X-Radiation 4 Schematic Diagram 1.5. GP31 Chassis Block Diagram 4.1.

  • Page 3: Safety Precautions

    TC-21FG20M-MALAYSIA 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

    TC-21FG20M-MALAYSIA 1.5. GP31 Chassis Block Diagram...

  • Page 5: Service Hints

    TC-21FG20M-MALAYSIA 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 6: Adjustment For White Balance

    TC-21FG20M-MALAYSIA 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 7: Adjustment Procedure

    TC-21FG20M-MALAYSIA 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 ... minimum Screen VR ..

  • Page 8: Pal Colour

    TC-21FG20M-MALAYSIA 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. Channel colour set --------- STD 4.
  • Page 9 TC-21FG20M-MALAYSIA 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. Apply a crosshatch pattern signal and Normalize Contrast positions.
  • Page 10 TC-21FG20M-MALAYSIA 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 TC-21FG20M-MALAYSIA 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. Be certain that three wedges are firmly fixed and the Deflection Yoke is tightly clamped in place.

  • Page 12: Conductor Views

    TC-21FG20M-MALAYSIA 3 Conductor Views...

  • Page 13: Schematic Diagram

    TC-21FG20M-MALAYSIA 4 Schematic Diagram...
  • Page 14 TC-21FG20M-MALAYSIA...

  • Page 15: A Board

    TC-21FG20M-MALAYSIA 4.1. A Board 4.1.1. A Board (1/6) <A1> <A2> <A3> <A4> <A5> <A6> <A7>...
  • Page 16 TC-21FG20M-MALAYSIA 4.1.2. A Board (2/6) <A1> <B1> <B2> <A2> <B3> <A3> <B4> <A4> <A5> <B5> <A6> <B6> <A7> <B7>...
  • Page 17 TC-21FG20M-MALAYSIA 4.1.3. A Board (3/6) <B1> <C1> <B2> <C2> <B3> <B4> <C3> <B5> <C4> <C5> <B6> <C6> <B7> <C7>...
  • Page 18 TC-21FG20M-MALAYSIA 4.1.4. A Board (4/6) <D1> <C1> <C2> <D2> <C3> <D3> <C4> <C5> <D4> <C6> <D5> <C7>...
  • Page 19 TC-21FG20M-MALAYSIA 4.1.5. A Board (5/6) <D1> <E1> <E2> <D2> <E3> <E4> <D3> <E5> <D4> <D5>...
  • Page 20 TC-21FG20M-MALAYSIA 4.1.6. A Board (6/6) <E1> <E2> <E3> <E4> <E5>...

  • Page 21: L Board

    TC-21FG20M-MALAYSIA 4.2. L Board 4.2.1. L Board (13) <A1> <A2> <A3> <A4> <A5>...
  • Page 22 TC-21FG20M-MALAYSIA 4.2.2. L Board (2/3) <A1> <B1> <A2> <B2> <A3> <B3> <B4> <B5> <A4> <A5> <B6>...
  • Page 23 TC-21FG20M-MALAYSIA 4.2.3. L Board (3/3) <B1> <B2> <B3> <B4> <B5> <B6>...

  • Page 24: Parts Locations

    TC-21FG20M-MALAYSIA 5 Parts Locations...

  • Page 25: Replacement Parts List

    TC-21FG20M-MALAYSIA 6 Replacement Parts List...

  • Page 26: Replacement Parts List

    TC-21FG20M-MALAYSIA 6.1. Replacement Parts List Ref. No. Part No. Part Name & Description Remarks C2138 ECJ2VC1H470J C 47PF, J, 50V C2139 ECJ2VC1H010C C 1PF, C, 50V Ref. No. Part No. Part Name & Description Remarks C2140 ECJ2VC1H010C C 1PF, C, 50V...
  • Page 27 TC-21FG20M-MALAYSIA Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C610 ECJ2VB1H103J C 0.01UF, 50V D1151 B3AGA0000089 DIODE C612 ECJ2VB1H472K C 4700PF, K, 50V D120 MA858 DIODE C613 ECJ2VB1H472K C 4700PF, K, 50V...
  • Page 28 TC-21FG20M-MALAYSIA Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks L183 TALV35VB5R6K PEAKING COIL R1060 D0GD683JA017 F 68KOHM,J, 1/10W L184 TALV35VB6R8K PEAKING COIL R1103 D0GD680JA017 F 68OHM,J, 1/10W L2104 TLTACT330J PEAKING COIL...
  • Page 29 TC-21FG20M-MALAYSIA Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R3038 D0GD101JA017 F 100OHM,J, 1/10W R603 D0GD393JA017 F 39KOHM,J, 1/10W R3039 D0GD101JA017 F 100OHM,J, 1/10W R604 ERJ6GEYJ821 M 820OHM,J,1/10W R3048 D0GD184JA017...
  • Page 30 TC-21FG20M-MALAYSIA Ref. No. Part No. Part Name & Description Remarks JS111 ERJ6GEY0R00 M 0OHM,J,1/10W JS112 ERJ6GEY0R00 M 0OHM,J,1/10W JS2132 ERJ6GEY0R00 M 0OHM,J,1/10W JS2140 ERJ6GEY0R00 M 0OHM,J,1/10W JS2141 ERJ6GEY0R00 M 0OHM,J,1/10W JS3001 ERJ6GEY0R00 M 0OHM,J,1/10W JS3129 ERJ6GEY0R00 M 0OHM,J,1/10W JS3132 ERJ6GEY0R00...

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