HP C30 - Page 168

TAG 500: +5 Vdc Power Malfunction
3-114 Troubleshooting Analysis Guide (TAGs) June 1999
10 Turn the printer off.
• Reconnect J/P77.
• Disconnect J/P27.
• Turn the printer on.
• Check J/P8-10 for +5 Vdc.
Is the voltage +5 Vdc?
No: Continue.
Yes: Replace the LED printhead assembly, then turn to TAG 002: Check & Problem Resolu-
tion.
11 Turn the printer off.
• Reconnect J/P27.
• Disconnect J/P91.
• Turn the printer on.
• Check J/P8-10 for +5 Vdc.
Is the voltage +5 Vdc?
No: Continue.
Yes: Replace the PCL board, then turn to TAG 002: Check & Problem Resolution.
12 Turn the printer off.
• Reconnect J/P91.
• Disconnect J/P32.
• Turn the printer on.
• Check J/P8-10 for +5 Vdc.
Is the voltage +5 Vdc?
No: Continue.
Yes: Replace the IGS board, then turn to TAG 002: Check & Problem Resolution.
13 Turn the printer off.
• Reconnect J/P32.
• Disconnect J/P94.
• Turn the printer on.
• Check J/P8-10 for +5 Vdc.
Is the voltage +5 Vdc?
No: Replace wire harness W36, then turn to TAG 002: Check & Problem Resolution.
Yes: Continue.