Canon imageRUNNER ADVANCE C5051 Series Service Manual page 477

Item Check■item
(2) Disconnect■
and■then■
Disconnect and then connect the
connect■the■
12V Connector of the Control Panel
12V■Power■
Supply■
Connector■of■
the■Control■
Panel
J1002
(3) Control■
Panel■CPU■
PCB
Control Panel CPU PCB
(Note that an open circuit is likely
to occur when the cable is being
disconnected and then connected)
6
Troubleshooting■>■Startup■System■Failure■Diagnosis■>■Flow■B:■Control■Panel■12V■Check■Flow
Location
12V Connector from the Relay PCB
6 Troubleshooting■>■Startup■System■Failure■Diagnosis■>■Flow■B:■Control■Panel■12V■Check■Flow
Item Check■item
(4) Control■
Panel■
Inverter■PCB
Control Panel Inverter PCB
(5) Relay■PCB
J427
(6) Disconnect■
J427■of■the■
Relay■PCB■
and■check■
the■following■
resistance:
Relay■PCB
FU3
FU3
Normal■
value:■0■Ω
6-23
Location
J427
6-23