Lexmark X543 Service Manual page 109
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Also See for X543:
- Service manual (353 pages) ,
- Quick reference (4 pages) ,
- User manual (258 pages)
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Step
Questions / actions
Turn off the printer, and remove the rear
11
shield.
"Rear shield removal" on page
Disconnect the cable at JOPT1 on the
controller board. Turn the printer on, and
measure the voltages below.
Are the voltages correct?
Pin
2
3
5
6
7
9
10
4-7.
JOPT1
Voltage
Ground
Ground
+24V
Ground
+5V
Ground
Ground
Yes
Consult your second level
support.
7525-xxx
No
Replace the controller
board. See
Diagnostic information
2-65
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