Xerox 7142, Service Manual

Page: 285 / 341

RJ-901C/RJ-900C Maintenance Manual 9 Troubleshooting
9-41
13 Operation panel
accepts no inputs. 1. Is operation panel
cover broken or
contaminated?
Replace operation panel
cover. -
2. Check panel cable
connectors at
operation panel unit
assembly side and
main board assembly
side.
• Is panel cable
inserted obliquely?
• Is it locked securely?
Reconnect following
connectors.
• Main board
assembly: J125
• Operation panel unit
assembly
"4.3.3
Replacing
Main Board
Assembly"
p.4-21
3. Operation panel unit
assembly may be
damaged.
Replace panel unit
assembly. "4.2.2
Removing
Operation
Panel Unit"
p.4-8
4. Main board assembly
may be
malfunctioning.
Replace main board
assembly. "4.3.3
Replacing
Main Board
Assembly"
p.4-21
14 Machine prints
nothing though it
receives data. 1. Refer to "9.3.6
Online Function
Problem".
- "9.3.6
Online
Function
Problems"
p.9-72
Table 9-9 Symptoms, Check Items and Actions for Initial Operation Problems (Continued)
No. Symptom Check item Action Reference