Sony FPF55C17196UA Service Manual page 57

5.8 ABUS-D1 Circuit Board Removal/Installation Procedure
When removing the circuit board after the main power is turned on/off, wait for at
least four minutes before starting to remove the circuit board.
Note
If the circuit board removal is started immediately after turning off the main power, it
can result in electric shock or damage to the circuit due to residual electric charge.
Remove the circuit board following the steps below. To install the circuit board, reverse the removal
procedure.
(1) Release the lock of CND1-3 and then reconnect the signal cable (FPC).
(2) Release the lock of CND1-1, CND1-2
(3) Release the power supply connector CND2-4 on the ABUS-U3 board.
(4) Remove the fixing screws (M3x8) fixing ADM at 4 locations.
(5) Remove the fixing screws (M3x8) fixing ABUS-D1 at 1 location.
(6) Release the space holder (rod) at the 1 location.
(7) Remove the ABUS-D1 board.
(2)CND1-1
Note
*
On handling the FPC connector
To release the lock, release it by gently flipping it with the nail of the
thumb or forefinger. Never pinch the lock lever with fingers or hook
on it (especially with a fingernail). Doing so might damage the lock
lever.
by lifting the lock
(6)
(4)
(4)
and then reconnect flexible cable of ADM.
(5)
(4)
-53-
(1)CND1-3
(3)CND2-4
(4)
(2)CND1-2