Lexmark X748dte - Page 187

Diagnostic information 2-147
7526
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3
Place a voltmeter between fuser DC
autoconnect pin 3, and ground (pin 6).
Does the meter read +5 V dc?
Go to step 5. Go to step 4.
4
Place a voltmeter between the JFUSER1, pin
3 and ground (pin 6).
Does the voltage drop to +5 V dc?
Replace the system board.
See “System board
removal” on page 4-165.
Go to step 5.
Step Questions / actions Yes No