Video Board - Panasonic KX-W1500 Service Manual

2.6 Video Board
Caution:
When servicing or replacing the CRT display tube, it is
important that the high voltage on the anode be com-
pletely discharged, as -high voltage (13KV) may re-
main on the anode for an extended time after power
off.
1. Remove the rear cover (2.1) and the mechanism
unit (2.2).
2. Discharge the remaining static electricity by short-
ing between the anode and the picture tube frame
ground before disassembly. Failure to completely
discharge the anode may result in a shock hazard
and possible component damage.
3. Unplug the anode spring and the CRT neck board
from the CRT display tube.
And Unplug the FDD Cable (grey/flat) from the
FDD.
4. Unplug the CRT power supply connector Co-1A,
the CRT connector Co-2A, and the brightness
control connector Co-3A from the video board, the
connector from the DY terminal and the CRT
ground connector Co-2C from the CRT neck
board. Then unsolder the power switch lead from
the power board.
5. Carefully turn the unit face down, and remove 4
screws () from the FDD frame and the video
frame (2 screws each).
6. Remove 2 screws @ from the bottom of the front
cover.
7. Carefully remove the front cover from the base.
8. Remove 2 screws ™) from the front cover and lift
off the video board with frame.
Note:
When installing the video board with the frame, make
sure that the ground wire is secured with the screw.
9. Remove 1 screw ® which secures the Transistor
to the frame and 1 screw ® which secures the
GND lead.
10. Remove 2 screws © from the video board.
11. Replacement is done in the reverse order.