Panasonic TC-22LR30 Service Manual page 15

SERVICE POSITION (2)
Note:
Use the Extension Cable (RFKZ0214) between the M8-Board and the RD-Board
Extension Cable (RFKZ0214) has A/V Output Signal switches.
Output signals can be switched from the M8-Board side or the RD-Board side.
When check the M8-Board, turn switches to the M8-Board side.
When check the RD-Board, turn switches to the RD-Board side.
A/V Output signal Switches of RFKZ0214
VIDEO SW
15
Extension Cable (RFKZ0214)
RD-Board
AUDIO (L) SW
AUDIO (R) SW
RD-Board side
M8-Board side
TC-22LR30
M8-Board