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Service Manual
TOP NEXT
ORDER NO. ITD0110012C3
Projection Television
TX-43P250/TX-51P250/TC-43P250/TC-51P250
l
EURO-7VPChassis

Specifications

Power Source:
TX-43/51P250, TC-51P250H: AC 220V-240V, 50/60Hz
TX-43/51P250X: AC 110V-240V, 50/60Hz
Power Consumption:
TX-43/51P250, TC-51P250H: 228W
TX-43/51P250X: 238W
3.0W (Stand-by condition)
Aerial Impedance:
75Ω unbalanced, Coaxial type
Tuning System:
21 Systems
Frequency Synthesizer
Auto Search
100(Position)/125(Direct)
Receiving Channels:
VHF Band
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.)
UHF Band
21-69
(PAL-G, H, I)
21-69
(SECAM-G, K, K1)
28-69
(PAL-B AUST.)
13-57
(PAL-D, K)
13-62
(NTSC-M Japan)
14-69
(NTSC-M U.S.A.)
CATV
S1-S20
(OSCAR)
S21-S41
(HYPER)
1-125
(U.S.A. CATV)
5A, 9A
(AUST.)
Z1-Z37
(CHINA)
C13-C49
(JAPAN)
Intermediate Frequency:
Video
38.0 MHz
Sound
31.5 MHz (D, K)/32.0 MHz (I)
32.5 MHz (B, G)/33.5 MHz (M)
Colour
33.57 MHz (PAL)/33.6 MHz (SECAM)
33.75 MHz (SECAM)/34.42 MHz (NTSC)
Receiving Stereo sound system:
NICAM B/G, NICAM I,
NICAM D, A2 (German)
Screen Size:
Type 51
Type 43
Diagonal:
296 mm
1092 mm
Height:
780 mm
655 mm
Width:
1037 mm
874 mm
Projection Tube:
Type 51
Type 43
TVVAB10GAV (B-ASSY)
TVVAB10GLV (B-ASSY)
TVVAG10GAV (G-ASSY) TVVAG10GLV (G-ASSY)
TVVAR10GAV (R-ASSY)
TVVAR10GLV (R-ASSY)
90° deflection
High Voltage:

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Summary of Contents for Panasonic TX-43P250

  • Page 1: Specifications

    Service Manual TOP NEXT ORDER NO. ITD0110012C3 Projection Television TX-43P250/TX-51P250/TC-43P250/TC-51P250 EURO-7VPChassis Specifications Power Source: TX-43/51P250, TC-51P250H: AC 220V-240V, 50/60Hz TX-43/51P250X: AC 110V-240V, 50/60Hz Power Consumption: TX-43/51P250, TC-51P250H: 228W TX-43/51P250X: 238W 3.0W (Stand-by condition) Aerial Impedance: 75Ω unbalanced, Coaxial type Tuning System:...
  • Page 2: Self Check

    5 Self Check TOP PREVIOUS NEXT 1. Self-Check is used to automatically check the bus lines and hexadecimal code of the TV set. 2. To get into the Self -Check mode press the down ( ) button on the customer controls at the front of the set, at the same time pressing the HELP button on the remote control, and thescreen will show : If the CCU ports have been checked and found to be incorrect or not located then “--”...
  • Page 3: Dynamic Focus Adjustment

    7.1 Dynamic Focus Adjustment TOP PREVIOUS NEXT 1. Focus adjustments should be performed after 1 hour of aging. 2. Use oscilloscope with 100 : 1 probe. 3. Apply monoscope pattern. 4. Adjust the Red, Blue and Green focus VR on the focus block for best focus of overall picture of each CRT.
  • Page 4: Electrical Focus Adjustment

    7.2 Electrical Focus Adjustment TOP PREVIOUS NEXT 1. Receive a monoscope pattern. 2. Cover the Red and Blue CRT, projecting Green only. The electrical focus controls are located on the front. Adjust the Green Focus VR for best focus of overall picture. (Fig. 2) 3.
  • Page 5: Optical Lens Focus Adjustment

    7.3 Optical Lens Focus Adjustment TOP PREVIOUS NEXT Note: This adjustment normally should not require resetting unless the lens has been replaced or adjustment has changed. 1. Optical focus adjustment is located on the top of each CRT lens system. Loosen the adjustment knurls locking knob.
  • Page 6: Centering Magnet Adjustment

    7.4 Centering Magnet Adjustment TOP PREVIOUS NEXT 1. Receive a monoscope pattern. 2. Confirm that Coarse convergence data (Service mode1) for R,G and B is 0. 3. Set that Fine convergence data (Service mode1) is clear (no correction). 4. Set that V-Pos data (Service mode1) is [100]. 5.
  • Page 7 TOP PREVIOUS NEXT...
  • Page 8: Alignment Magnet Adjustment

    7.5 Alignment magnet Adjustment TOP PREVIOUS NEXT Preparation: 1. Receive an cross hatch pattern with dots (pincushion). 2. Loosen the centering magnets screws. 3. Position the longer tab of the four-pole magnet to 90 degrees (uncorrected position). VM Coil with focus correction magnet 4-pole magnet 4.
  • Page 9 6. Adjust for best green electrical focus with green electrical focus adjustment VR. 7. Cover the Green, Red CRT lens, projecting Blue only. 8. Repeat step 4. ~ step 6. for blue electrical focus. 9. Cover the Green, Blue CRT lens, projecting Red only. 10.
  • Page 10 14 Schematic Diagram 14.1. Schematic Diagram Notes...
  • Page 11 14 Schematic Diagram 14.1. Schematic Diagram Notes...
  • Page 12 14.2. A-Board (1 of 4) Schematic Diagram...
  • Page 13 14.2. A-Board (1 of 4) Schematic Diagram...
  • Page 14 14.3. A-Board (2 of 4) Schematic Diagram...
  • Page 15 14.3. A-Board (2 of 4) Schematic Diagram...
  • Page 16 14.4. A-Board (3 of 4) Schematic Diagram...
  • Page 17 14.4. A-Board (3 of 4) Schematic Diagram...
  • Page 18 14.5. A-Board (4 of 4) Schematic Diagram...
  • Page 19 14.5. A-Board (4 of 4) Schematic Diagram...
  • Page 20 14.6. D-Board (1 of 2) Schematic Diagram...
  • Page 21 14.6. D-Board (1 of 2) Schematic Diagram...
  • Page 22 14.7. D-Board (2 of 2) Schematic Diagram...
  • Page 23 14.7. D-Board (2 of 2) Schematic Diagram...
  • Page 24 14.8. DG-Board (1 of 2) Schematic Diagram...
  • Page 25 14.8. DG-Board (1 of 2) Schematic Diagram...
  • Page 26 14.9. DG-Board (2 of 2) Schematic Diagram...
  • Page 27 14.9. DG-Board (2 of 2) Schematic Diagram...
  • Page 28 14.10. H-Board Schematic Diagram...
  • Page 29 14.10. H-Board Schematic Diagram...
  • Page 30 14.11. LG-Board Schematic Diagram...
  • Page 31 14.11. LG-Board Schematic Diagram...
  • Page 32 14.12. LB and LR-Board Schematic Diagram...
  • Page 33 14.12. LB and LR-Board Schematic Diagram...
  • Page 34 14.13. M-Board Schematic Diagram...
  • Page 35 14.13. M-Board Schematic Diagram...
  • Page 36 14.14. P-Board Schematic Diagram...
  • Page 37 14.14. P-Board Schematic Diagram...
  • Page 38 14.15. U-Board Schematic Diagram...
  • Page 39 14.15. U-Board Schematic Diagram...

This manual is also suitable for:

Tx-51p250Tc-43p250Tc-51p250