hit counter script
Panasonic TC-21FX20P Service Manual
  1. Manuals
  2. Brands
  3. Panasonic Manuals
  4. TV
  5. TC-21FX20P
  6. Service manual

Panasonic TC-21FX20P Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Specifications
Power Source :
Power Consumption :
Aerial Impedance :
Receiving System :
Receiving Channels :
VHF
UHF
CATV
Video / Audio Terminals :
DVD
Y
PB
PR
AV 1,2,3
Video In
Audio In
Monitor Out
Video Out
Audio Out
Intermediate Frequency :
Video
AC AUTO 110-240V, 50/60 Hz
67W
75Ω unbalanced
Coaxial type
17 Systems
2-13 (U.S.A. STANDARD)
14-69 (U.S.A. STANDARD)
1-125 (U.S.A. STANDARD)
1.0Vp-p, 75Ω
0.7Vp-p, 75Ω
0.7Vp-p, 75Ω
1Vp-p, 75Ω
Approx. 0.5V, 47kΩ
1Vp-p, 75Ω
Approx. 0.5V, 1kΩ
38.0 MHz
TC-21FX20P
GP41 Chassis
Sound
Colour
High Voltage :
Picture Tube :
Audio Output :
Dimensions :
Mass :
Specifications are subject to change without notice.
Mass and dimensions shown are approximate.
© 2006 Matsushita Electric Industrial Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO. MTV0601423CE
Colour Television
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)
27.5kV ±1.5V
at zero beam current
A51LYZ295X
50.0cm (21 inches)
Measured diagonally,
90° deflection
16.0W
Height : 472 mm
Width : 648 mm
Depth : 488 mm
24 kg (Net Wt.)
Unauthorized
copying
and

Advertisement

Table of Contents
loading

Related Manuals for Panasonic TC-21FX20P

Summary of Contents for Panasonic TC-21FX20P

  • Page 1 ORDER NO. MTV0601423CE Colour Television TC-21FX20P GP41 Chassis Specifications Power Source : AC AUTO 110-240V, 50/60 Hz Sound 31.5 MHz (D, K, K1) Power Consumption : 32 MHz (I) Aerial Impedance : 75Ω unbalanced 32.5 MHz (B, G) Coaxial type 33.5 MHz (M)

  • Page 2: Table Of Contents

    TC-21FX20P CONTENTS Page Page 1 Safety Precautions 2.4. Adjustment for CRT CUT OFF 1.1. General Guide Lines 2.5. Adjustment Procedure 1.2. Leakage Current Cold Check 2.6. Adjustment 1.3. Leakage Current Hot Check (Fig. 1) 3 Conductor Views 1.4. X-Radiation 4 Schematic Diagram 1.5.

  • Page 3: Safety Precautions

    TC-21FX20P 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: Gp41 Chassis Block Diagram

    TC-21FX20P 1.5. GP41 Chassis Block Diagram...

  • Page 5: Service Hints

    TC-21FX20P 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 TC-21FX20P NOTE :- Service mode 2 options bit. 6. Service Mode 3 Controls To enter SERVICE 3; press channel key ‘1’ in SERVICE 2 entry screen. 7. Service Mode 3 Function...

  • Page 7: Adjustment For White Balance

    TC-21FX20P 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-21FX20P 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 15 : 3.35 ±...

  • Page 9: Adjustment

    TC-21FX20P 2.6. Adjustment 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-21FX20P 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-21FX20P 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-21FX20P 3 Conductor Views...

  • Page 13: Schematic Diagram

    TC-21FX20P 4 Schematic Diagram...
  • Page 14 TC-21FX20P...

  • Page 15: A Board

    TC-21FX20P 4.1. A Board 4.1.1. A Board (1/5) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A> <9A>...
  • Page 16 TC-21FX20P 4.1.2. A Board (2/5) <1A> <1B> <2A> <2B> <3A> <3B> <4B> <4A> <5A> <5B> <6A> <7A> <6B> <8A> <7B> <8B> <9A> <9B>...
  • Page 17 TC-21FX20P 4.1.3. A Board (3/5) <1B> <1C> <2B> <2C> <3B> <3C> <4B> <4C> <5C> <5B> <6B> <6C> <7B> <7C> <8B> <8C> <9B> <9C>...
  • Page 18 TC-21FX20P 4.1.4. A Board (4/5) <1C> <1D> <2C> <2D> <3D> <4D> <3C> <4C> <5C> <5D> <6D> <6C> <7D> <7C> <8D> <8C> <9C> <9D>...
  • Page 19 TC-21FX20P 4.1.5. A Board (5/5) <1D> <2D> <3D> <4D> <5D> <6D> <7D> <8D> <9D>...

  • Page 20: L Board

    TC-21FX20P 4.2. L Board 4.2.1. L Board (1/3) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A> <9A>...
  • Page 21 TC-21FX20P 4.2.2. L Board (2/3) <1A> <1B> <2A> <2B> <3A> <3B> <4A> <5A> <4B> <6A> <7A> <8A> <5B> <6B> <9A>...
  • Page 22 TC-21FX20P 4.2.3. L Board (3/3) <1B> <2B> <3B> <4B> <5B> <6B>...

  • Page 23: Parts Locations

    TC-21FX20P 5 Parts Locations...

  • Page 24: Replacement Parts List

    TC-21FX20P 6 Replacement Parts List...

  • Page 25: Replacement Parts List

    TC-21FX20P 6.1. Replacement Parts List Ref. Part No. Part Name & Description Remarks C3176 ECA1CM101B E 100UF, 16V Ref. Part No. Part Name & Description Remarks C3177 ECA1CM101B E 100UF, 16V C3178 ECJ1VC1H561J C 560PF, J, 50V A51LYZ295X PICTURE TUBE...
  • Page 26 TC-21FX20P Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C656 ECJ1VC1H270J C 27PF, J, 50V D557 B0HAMR000095 DIODE C657 ECJ1VC1H560J C 56PF, J, 50V D558 MA185 DIODE C662 F2A0J101A317 E 4.7UF, 50V...
  • Page 27 TC-21FX20P Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L842 J0JKA0000025 BEAD CORE R2302 ERX2FJSR33E M 0.33OHM,J, 2W L843 J0JKA0000038 BEAD CORE R2317 D0GB622JA008 F 6.2KOHM,J,1/16W L845 J0JKA0000023 BEAD CORE R2318 D0AE1R0JA046...
  • Page 28 TC-21FX20P Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R413 ERJ3GEYJ183 M 18KOHM,J,1/16W R834 ERG2FJ823H M 82KOHM,J,2W R416 ERX1SJ1R2E M 1.2OHM,J, 1W R836 ERG1SJ220P M 22OHM,J,1W R451 ERJ3GEYJ223 M 22KOHM,J,1/16W R840 RCR100TAJ825 C 8.2MOHM,J, 1W...
  • Page 29 TC-21FX20P Ref. Part No. Part Name & Description Remarks JS3139 ERJ3GEY0R00 M 0OHM,J,1/16W JS3140 ERJ3GEY0R00 M 0OHM,J,1/16W JS631 ERJ3GEY0R00 M 0OHM,J,1/16W JS632 ERJ3GEY0R00 M 0OHM,J,1/16W JS633 ERJ3GEY0R00 M 0OHM,J,1/16W JS634 ERJ3GEY0R00 M 0OHM,J,1/16W JS670 ERJ3GEY0R00 M 0OHM,J,1/16W K1KA13A00140 CONNECTOR K1KA04AA0190...

Table of Contents