Mitsubishi SCM40ZJ-S Service Manual page 232

Sub PCB (PWB4) on the 1st layer
2. Disconnect the cables (Red
& White) connected to the
terminal TB3 & TB4 of N/F
PCB (PWB3), after dismount
the 1st layer as follows.
1) Dismount the 1st layer
according to the dismounting
procedure for control PCB
after loosening 2 screws
and disconnect the power
cables on secondary side
of TB1.
2) Loosen 2 screws and
remove the cables (Red &
White) from TB3 & TB4
on the N/F PCB (PCB3)
located on back side of
the 1st layer.
3. Pinch the head of locking
supports (4 pieces) and
remove the Sub PCB (PWB4).
Screws
Locking supports
Disconneced cables
231
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'11 • SCM-SM-110
Disconnect power cables
TB1
〔PCB3〕
TB4
TB3