Xerox 3050 Service Manual page 215

1 .I AC Power RAP
This RAP is used for problems i n the AC
circuitry for primary distribution and control.
The Control Panel may illuminate, but the
copier will not begin initialization.
The problem may occur i f there is a
malfunction i n the Main Power Relay (Kl),
the Main Power Switch (CBl), the Noise Filter
(FL-2), Fuse F2 o n the LVPSI Driver PWB (A2),
Main Transformer (TI) or a ground fault
exists.
NOTE:
The component locator drawings and
the circuit diagram are o n the following
pages. The 60 Hz configurations are shown
in one circuit diagram. The 50
Hz
configuration is shown in another circuit
diagram.
Initial Actions
Check that the correct voltage is being
applied t o the copier a t the wall
outlet.
Ensure that Connectors A2P215 and
A2P214 are correctly installed and
fully seated.
W/ Tag/ MOD12: The Ground Fault
Protection Device is activated (red
flag not up), go t o 1.6 Ground Fault
RAP.
Procedure
Switch on the copier.
The Main Power Switch (CB1) remains on.
Y
N
I
.
Go t o the 1.2 Main Power Switch Opens
I
RAP.
The Control Panel illuminates.
Y N
A B C D E F
Go t o FLAG 1 and check that line voltage
is present.
Line voltage is present.
Y
N
Go t o FLAG 3 and check that ACH
voltage is present.
ACH voltage is present.
N
Go t o the Line side o f the
Ground Fault Protector.. ACH
voltage is present.
Y N
Replce the power cord.
Go t o the 1.6 Ground Fault
Protector RAP.
Go t o Flag 2 and check that line
voltage is present.
ACH voltage is present.
(
ACH voltage is present.
Y N
Repair the wires between
A2P215 and the Main Power
Relay (K 1).
Replace the LVPS/ Driver PWB
(A2)
Return the copier t o normal
operation.
Go t o FLAG 7 and check that ACH voltage i s
Go t o FLAG 6 and check for 22 VAC and
1 1 VAC.
22 VAC and 11 VAC is present.
N
Replace the Main Power Transformer
(TI).
Go t o the 1.5 DC Power RAP.
Y N present.
I
Replace the Line Filter. ACH voltage is present.
Replace the Main Power Switch
(CB 1).
Go t o Flag 4 and check that ACH voltage
is present.
ACH voltage is present.
Y N
I
Replace the bottom Fuse (A2F2).
ACH voltage is present.
I Y N
I I
Go t o FLAG 5 and check that ACH
voltage is present.
C D E F
N
Go t o FLAG 8 and check that 24 VDC is
present.
24 VDC is present.
I
GO t o 1.5 Cover Interlock RAP.
Replace the Main Power Relay (K1).
Go t o the LL.43 Fuser Overtemperature RAP.
4/96
3050 2-1 23
1 .I AC Power RAP