1/05
2-6
DocuColor 12/DCCS50
+3.5 VDC Power (IIT/IPS LVPS) RAP, +5 VDC Power
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Status Indicator RAPs
+3.5 VDC Power (IIT/IPS LVPS) RAP
This RAP is used to repair failures in the +3.5 VDC Power (IIT/IPS LVPS) circuit when directed
by another RAP.
Initial Actions
• Use BSD 1.3 in the following procedure:
Procedure
Disconnect J5. Go to Flag 1 on BSD 1.3, and check for ACH between J5-3 and J5-2 on the
harness side. ACH is measures between J5-3 a
nd J5-2 on the harness side.
YN
Go to the A
C P
ower RAP.
Go to Flag 2 on BSD
1.3. Less than +1 VDC is measured at P/J11A-1.
YN
Go to Fl
ag 3 on BSD
1.3. Less than +1 VDC is measured at P/J11A-13.
YN
Perform the following:
• Replace the IOT Drive PWB (PL 9.
2).
•
Replace the IOT CPU PWB (PL 9.
2).
Replace the AC Driver PWB (PL 9.3).
Go to Flag 5 on BSD
1.3, and perform the following:
1. Check the wiring at P/J31 f
or an open/short circuit to the POST IPS.
2. Replace the IIT LVPS (PL 3.
5).
3. Replace the PRE IPS PWB (PL 3.5).
4. Replace the POST IPS PWB (PL 3.
5).
+5 VDC Power (IOT LVPS) RAP
This RAP is used to repair failures in the +5 VDC Power circuit when directed by another RAP.
Initial Actions
• Use BSD 1.2 in the following procedure:
• P/O P/O the machine, and look for symptoms of a blank UI and a machine locked into the
Power Sa
ve Mode.
Procedure
The machine exits Energy Saver Mode when the Main Switch is switched ON.
YN
Refer to BSD 1.2. Check for +5 VDC between P/
J25-1 and P/
J25-2 on the IOT LVPS.
+5 VDC is measured between P/J25-1 an
d P/J25-2.
YN
Perform the following:
•Go to F
lag 4 and F
lag 5 on BSD 1.2, and check for an open circuit.
• Replace the IOT LVPS (PL 9.3).
• Replace the Half Tone PWB (PL 9.2).
•
Replace the Tray PWB (PL 9.3).
• Replace the AC Driver PWB (PL 9.3).
Go to the Power
Save
and LED RAP.
Go to the Power Save
and LED RAP.
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