The Panel Switch Does Not Work - Brother PR655 Service Manual

Failure Investigation for Electronic Parts

• The panel switch does not work,

• The panel's LED does not light.
Is the SS PCB's lead properly
connected to connector CN2 on the
panel PCB?
Does the machine function normally when
the SS PCB is replaced with a reliable one?
The panel switch does not work.
or
Y
Y
Change the SS PCB.
5 - 7
N
Connect it properly.
N
Change the panel PCB.