HP C30 - Page 135

TAG 097: +12 Vdc Power Shorted or Sensing Problem
June 1999 Troubleshooting Analysis Guide (TAGs) 3-81
12 Turn the printer off and unplug the power cord.
• Reconnect J/P41.
• Remove the fuser unit.
• Check P41-49 to P25-4 and P41-50 to P25-1 for continuity to ground.
Is there continuity?
No: Go to #15 in this TAG.
Yes: Repair or replace the appropriate connectors or wiring, then turn to TAG 002: Check &
Problem Resolution.
13 Turn the printer off and unplug the power cord.
• Reconnect J/P91.
• Disconnect J/P8 and J/P32.
• Check J8-6 for continuity to ground.
Is there continuity?
No: Continue.
Yes: Repair or replace the connectors or wiring from P8-6 to P32-10 to P91-3, then turn to
TAG 002: Check & Problem Resolution.
14 Reconnect J/P32 and J/P8.
• Disconnect J/P77.
• Turn on the printer.
• Check J/P8-3 for +12Vdc.
Is the voltage +12 Vdc?
No: Replace the DC power supply, then turn to TAG 002: Check & Problem Resolution.
Yes: Replace the disk drive assembly, then turn to TAG 002: Check & Problem Resolution.
15 Turn the printer off.
• Reconnect J/P41.
• Disconnect J/P58, J/P60, and J/P62.
• Turn the printer on.
• Check J/P8-6 for +12 Vdc.
Is the voltage +12 Vdc?
No: Go to #21 in this TAG.
Yes: Continue.
16 Turn the printer off.
• Reconnect J/P58.
• Turn on the printer.
• Check J/P8-6 for +12 Vdc.
Is the voltage +12 Vdc?
No: Go to #19 in this TAG.
Yes: Continue.