Xerox DocuColor 2240 Service Manual page 541

OF 1-4 AC Power
AC Power Failure
Initial Actions
Check Circuit Breaker.
Procedure
Refer to Figure 1. AC Line Voltage is measured between the Noise Filter PWB FS75 and
FS74 (PL 9.2).
Y N
AC Line Voltage is measured between the Circuit Breaker P/J72-2 and P/J72-1.
Y N
Disconnect power cord from power outlet. The voltage of the power outlet is AC
Line Voltage.
Y N
Inform customer power is not available.
Check the Power Cord for an open circuit. If no problems are found, replace the Cir-
cuit Breaker (PL 9.2).
Go to Flag 1. Check wires between Circuit Breaker
open circuit and poor contact.
AC Line Voltage is measured between the Noise Filter PWB FS77 and FS76.
Y N
If the Circuit Protector on the Noise Filter PWB is tripped, reset it. If it is not tripped,
replace the Noise Filter PWB (PL 9.2).
AC Line Voltage is measured between the Main Power Switch FS57 and Noise Filter
PWB FS76.
Y N
Go to Flag 2. Check the wire between the Main Power Switch and the Noise Filter PWB
for an open circuit and poor contact.
AC Line Voltage is measured between the Main Power Switch FS69 and Noise Filter
PWB FS76.
Y N
Replace the Main Power Switch (PL
AC Line Voltage is measured between the AC Drive PWB FS40 and the FS39.
Y N
Go to Flag 3. Check the following:
• wire between the AC Drive PWB
an open circuit and poor contact.
• wire between FS76 on the Noise Filter and the AC Drive PWB for an open circuit or
poor contact.
AC Line Voltage is measured between the AC drive PWB P/J43-9 and the P/J43-1.
Y N
Replace the AC Drive PWB (PL 9.2).
A
Initial issue
DC 3535/2240/1632
P/J72 and Noise Filter PWB for an
10.2).
(PL 9.2) and the Main Power Switch (PL
A
Check the AC voltage distribution by referring to Chapter 7 Wiring Data.
Figure 1 OF1-4 RAP Circuit Diagram - AC Power CD
10.2) for
02/03
2-511
Status Indicator RAPs
OF 1-4