Xerox Phaser 3635MFP Service Manual page 21

9. Reconnect all connectors onto the Connection
Main PWB except CN26 and CN31.
10. Switch on the power to the machine. If the machine switches on, perform step 11. If the
machine fails to switch on, go to step 12.
11. Sequentially reconnect each connector onto the
fied, repair the wiring or install components as necessary. If the machine still fails to
switch on perform OF7 Main PWB Check
12. Reconnect all connectors onto the Main
REP 1.2.
13. Re-install the HVPS. Switch on the machine. If the machine switches on, check the wiring
between the HVPS and the tray 1 paper empty sensor. Install new components as neces-
sary, PL 1.10 and PL 10.22. If the machine fails to switch on, install a new HVPS,
Item 3.
14. If the fault is still present:
a. Install new components as necessary:
• SMPS, PL 1.12 Item 3.
• Connection PWB, PL 3.10 Item
• HVPS, PL 1.10 Item 3.
b. Perform OF7 Main PWB Check
3550 Checkout
Refer to Wiring Diagram 1, Wiring Diagram
Diagram 11,Wiring Diagram 12 (3550), Wiring Diagram 13
Wiring Diagram 15 (3550), Wiring Diagram 16 (3550)
the following:
1. Ensure the supply voltage is correct. If possible, connect the machine to a known good
power supply. If the original power supply is faulty, inform the customer.
2. Disconnect the power cord from the power outlet and the machine. Check the continuity
of the power cord. If necessary, install a new power cord.
3. Disconnect CON1 on the SMPS. Check for AC supply voltage between pins 1 and 2 on
the connector. If necessary, install a new SMPS,
4. Check the fuse F01 on the SMPS. If necessary, install a new SMPS,
NOTE: Fuse F01 is not spared.
5. Remove the fuser, PL 10.10 Item
Install new components as necessary,
NOTE: A cold fuser heat roll has a resistance of approximately 9 ohms (220V/240V) or
1.6 ohms (110V).
6. Switch off the power to the machine. Disconnect all connectors on the
except CN2 and CN1.
7. Switch on the power to the machine. If the machine switches on, perform step 8. If the
machine fails to switch on, go to step 9.
8. Sequentially reconnect each connector onto the
identified, repair the wiring or install components as necessary. If the machine still fails to
switch on, install a new connection PWB,
9. Reconnect all connectors onto the Connection
Main PWB except CN12 and CN15.
Phaser 3635MFP/WorkCentre 3550
PWB. Disconnect all connectors from the
Main PWB. If the faulty circuit is identi-
RAP.
PWB. Disconnect CN4 from the HVPS, refer to
17.
RAP.
2, Wiring Diagram 8, Wiring Diagram
(3550), Wiring Diagram 14
and Wiring Diagram 17 (3550). Perform
PL 1.12 Item 3.
PL 1.12 Item
1. Check for continuity across the fuser heat lamp.
PL 10.12 and PL 10.15.
Connection PWB
Connection PWB. If the faulty circuit is
PL 3.10 Item 17.
PWB. Disconnect all connectors from the
10. Switch on the power to the machine. If the machine switches on, perform step 11. If the
machine fails to switch on, go to step 12.
11. Sequentially reconnect each connector onto the
fied, repair the wiring or install components as necessary. If the machine still fails to
switch on perform OF7 Main PWB Check
12. Reconnect all connectors onto the
REP 1.2.
13. Re-install the HVPS. Switch on the machine. If the machine switches on, check the wiring
between the HVPS and the tray 1 paper empty sensor. Install new components as neces-
sary, PL 1.10 and PL
Item 3.
PL 1.10 14. If the fault is still present:
a. Install new components as necessary:
• SMPS, PL 1.12 Item
• Connection PWB,
• HVPS, PL 1.10 Item
b. Perform OF7 Main PWB Check
10, Wiring
(3550),
3.
April 2010
2-5
Main PWB. If the faulty circuit is identi-
RAP.
Main PWB. Disconnect CN4 from the HVPS, refer to
10.22. If the machine fails to switch on, install a new HVPS,
3.
PL 3.10 Item 17.
3.
RAP.
PL 1.10
Status Indicator RAPs
01A