Flow E: Low-Voltage Power Supply (12V) System Flow - Canon imageRUNNER ADVANCE C2030 Service Manual

Flow E: Low-voltage Power Supply (12V) System Flow

■ Status Check
If 12V is not output to the orange and blue Lead Wires of the Low-voltage Power Supply(12V)
Connector, identify the location of the failure according to the flow.
■ Flow for narrowing down troubles
Description
To check the output of the Low-voltage Power Supply(12V), check the following two points.
• Check the output from the Low-voltage Power Supply(12V)
• Check the output from the AC driver PCB
6
Troubleshooting > Startup System Failure Diagnosis > Flow E: Low-voltage Power Supply (12V) System Flow > Flow for narrowing down troubles
6 Troubleshooting > Startup System Failure Diagnosis > Flow E: Low-voltage Power Supply (12V) System Flow > Flow for narrowing down troubles
● Low-voltage Power Supply(12V) Flow
12V is not supplied to the Main Controllers.
- Check the connection of the AC driver PCB connectors.
- Disconnect and then connect all the connectors, and restart.
(1)
Is there output of 12V Yes
to the PCB side of J113 (pin 3) of
the AC driver PCB?
(2)
- Failure of harness (disconnection) between J113 of the
No
- Failure of the Main Controller 2, Main Controller 1
(3)
Yes
Is there input of 12V
to the PCB side of J110 (pin 3) of
the AC driver PCB?
- Failure of the AC driver PCB
No
(4)
Is there output of 12V
Yes
to the PCB side of J11 (pin 3) of the
Low-voltage Power
Supply PCB?
- Failure of harness (disconnection) between J110 of the AC
driver PCB and J11 of the Low-voltage Power Supply PCB
No
- Failure of the Low-voltage Power Supply
(5)
Is there input of AC
Yes
power(e.g.115 V - 230 V) to the PCB side
of J1 (pins 1 and 3) of the Low-voltage
Power Supply PCB?
- Failure of the Low-voltage Power Supply
No
(6)
Yes
Is there output of AC
power(e.g.115 V - 230 V) to the PCB side
of J102 (pins 4 and 5) of the
AC driver PCB?
- Failure of harness (disconnection) between J102 of the AC
driver PCB and J1 of the Low-voltage Power Supply PCB
No
- Failure of the Low-voltage Power Supply
(7)
Is there input of AC
Yes
power(e.g.115 V - 230 V) to the PCB
side of J101 (pin 1) of the
AC driver PCB?
Is there input of
No
power-on signal to the pins 3
and 4 of J1010 on the AC
- Failure of Power Supply
driver PCB?
Cord Base
No
(10)
Yes
Is there output of
power-on signal to the pins 4
and 5 of J16 on the Main
Controller 2? - Failure of harness
(disconnection) between J1010
No
of the AC driver PCB
- Failure of the and J16 of the Main Controller 2
Main Controller 2 - Failure of the AC driver PCB
AC driver PCB and J4 of the Main Controller 2
(8)
Yes
(9)
Is the harness
Yes
between J102 of the AC driver
PCB and J1 of the Low-voltage Power
Supply PCB disconnected
/shorted?
- Replace
host machine
No
- Failure of the
AC driver PCB
6-100
the
F-6-135
6-100