Read Panasonic TX-43P250 / TX-51P250 / TC-43P250 / TC-51P250 Service Manual online
3.10. Disassembly For CRT Removal
To facilitate CRT replacement, the complete CRT mounting
chassis does not need to be removed.
chassis does not need to be removed.
1. Remove the Screen Frame Ass´y, Decorative Panel and
the Bottom Rear Cover Ass´y. ( See Disassemble for
Service ).
Service ).
2. From the Rear side, remove the defective CRT´s anode
lead from the Flyback Transformer block that is mounted
secured to the Main chassis E-Board.
secured to the Main chassis E-Board.
3. Grasp the anode lead protective cap body inside, and rotate
1/4 turn counter clockwise and pull anode lead sleeve out of
the distributor.
the distributor.
4. Discharge anode lead to CRT chassis metal frame.
5. Unplug the defective CRT Dag ( GND ), from the CRT
Board, LBGND for LB, LGGND for LG, LRGND for LR.
6. Remove lead wires ( DY, VM coil ) and anode lead wire
from holders as necessary.
7. Remove the CRT Board from the defective CRT neck.
8. Note position of yoke with centering tabs and remove from
defective CRT.
9. From the Top, remove (2) screws from the defective CRT.
10. Release CRT anode lead from CRT chassis wire clamp and
all other wires from holders.
11. Wire the anode lead wire.
12. Lift out CRT assembly with lens assembly and other CRT
neck assemblies.
13. Lay CRT face down on a soft cloth.
14. Remove CRT lens by removing (4) screws.
15. Install yoke and VM coil with other CRT neck assemblies on
CRT neck in the same order and position as removed from
the defective CRT.
the defective CRT.
16. Push yoke against bell of CRT and tighten the clamp just
snug enough so it will not easily shift.
17. Assemble CRT focus lens assembly to new CRT with (4)
screws. Make sure focus lens adjustment nut is in the same
location as on other CRT focus lens.
location as on other CRT focus lens.
Note:
Please assemble with screws in the order shown in detail
and tighten with same torque.
and tighten with same torque.
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TX-43P250 / TX-51P250 / TC-43P250 / TC-51P250
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