3-122 Troubleshooting Analysis Guide (TAGs)
19
Turn the printer off.
• Reconnect J/P22.
• Turn on the printer for 2-1/2 minutes, then off.
Was the power-on-reset successful?
No: Replace the vacuum transport unit, then turn to TAG 002: Check & Problem Resolution.
Yes: Replace the small cooling fan assembly, then turn to TAG 002: Check & Problem Reso-
lution.
20
Reconnect J/P9.
• Disconnect J/P100.
• Install a new upper fuse in the AC power supply unit.
• Run diagnostic test 008 for approximately five seconds, then turn off the printer.
• Remove the fuse.
• Check the fuse for continuity.
Does the fuse have continuity?
No: Go to #23 in this TAG.
Yes: Continue.
21
Turn off the printer.
• Reconnect J/P100.
• Install a good upper fuse in the AC power supply unit.
• Disconnect J/P101.
• Run diagnostic test 008 for approximately five seconds, then stop.
• Remove the fuse.
• Check the fuse for continuity.
Does the fuse have continuity?
No: Replace the power control #3 board, then turn to TAG 002: Check & Problem Resolu-
tion.
Yes: Continue.
22
Disconnect J/P19.
• Check P101-2 to P19-2 for continuity to ground.
Is there continuity to ground?
No: Replace the jogging motor, then turn to TAG 002: Check & Problem Resolution.
Yes: Repair or replace the connectors or wiring from P101-2 to P19-2, then turn to TAG 002:
Check & Problem Resolution.
23
Disconnect J/P4 and J/P9.
• Check P4-4 to P9-2 and P4-4 to P100-1 for continuity to ground.
Is there continuity to ground?
No: Continue.
Yes: Repair or replace the connectors or wiring from P4-4 to P9-2 or P4-4 to P100-1; then turn
to TAG 002: Check & Problem Resolution.
