Operator Panel Display Is Blank - Lexmark X548 Series Service Manual

7525-63x

Operator panel display is blank

Step Questions / actions
Check the cable connections between the RIP
1
board and the UICC, and check the
connections from the UICC to the display.
Are the cables properly connected?
Reconnect the cables. POR the device.
2
Does this fix the problem?
Using a multimeter, check the UICC cable for
3
continuity.
Is there continuity?
Replace the defective cable. See
4
interface controller card cable removal" on
page 4-112.
POR the device.
Does this fix the problem?
5 Are the LEDs on the operator panel lit?
Replace the display. See
6
page 4-100.
Does this fix the problem?
Check connector JUIC1 on the RIP board for
7
the following voltages and grounds:
Pin
2
9
10
15
16
17
18
Do the voltages and ground readings
approximately match the table?
Replace the RIP board. See
8
removal" on page
POR the device into Diagnostics mode.
Does this fix the problem?
Service Manual
2-42
"User
"LCD removal" on
JUIC1
Voltage
Ground
Ground
5.0 V dc
Ground
5.0 V dc
5.0 V dc
5.0 V dc
"RIP board
4-19.
Yes
Go to step 3.
Problem resolved.
Go to step 5.
Problem resolved.
Go to step 6.
Problem resolved.
Go to step 9.
Problem resolved.
No
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Go to step 7.
Go to step 7.
Go to step 8.
Go to step 9.
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