Power Service Check - Lexmark X125 Service Manual

4412-00X

Power Service Check

FRU
1 Power Supply
2 Printhead Cables
Paper Feed Motor
Carrier Transport
Motor
Operator Panel
3 System Board
Action
Plug the machine into an outlet. Check for
approximately 30 V dc at P1 pin 3. Check
connector (CON1) at the power supply. If voltage is
incorrect, replace the power supply.
Unplug the printer. Disconnect the printhead
cables and plug in the printer. Look for a symptom
change. Check the failing part for shorts and
replace as necessary.
Repeat this procedure for the carrier transport
motor, paper feed motor, and operator panel.
If the symptom has not changed, replace the
system board. Go to the
Removal" on page
"System Board
4-19.
Diagnostic Information
2-15