HP C30 - Page 159

TAG 130: Diskette/Disk Drive Malfunction
June 1999 Troubleshooting Analysis Guide (TAGs) 3-105
P31-10 to P79-10.
Is there continuity on any?
No: Replace the disk drive assembly. If this does not resolve the problem, replace the IGS
board, then turn to TAG 002: Check & Problem Resolution.
Yes: Replace wire harness W46, then turn to TAG 002: Check & Problem Resolution.
13 Is error code 574 displayed?
No: Go to #16 in this TAG.
Yes: Continue.
14 Turn the printer off and unplug the power cord.
• Disconnect J/P31 and J/P79.
• Check P31-30 to P79-30 for continuity.
Is there continuity?
No: Replace wire harness W46, then turn to TAG 002: Check & Problem Resolution.
Yes: Continue.
15 Check for continuity to ground: P31-18 to P79-18, P31-24 to P79-24, and P31-26 to P79-26.
Is there continuity on any?
No: Replace the disk drive assembly. If this resolves the problem, turn to TAG 002: Check &
Problem Resolution. If this does not resolve the problem, replace the IGS board, then turn
to TAG 002: Check & Problem Resolution.
Yes: Replace wire harness W46, then turn to TAG 002: Check & Problem Resolution.
16 Is error code 575 displayed?
No: Go to #18 in this TAG.
Yes: Continue.
17 Turn the printer off and unplug the power cord.
• Disconnect J/P31 and J/P79.
• Check P31-20 to P79-20 and P31-18 to P79-18 for continuity.
Is there continuity on each?
No: Replace wire harness W46, then turn to TAG 002: Check & Problem Resolution.
Yes: Replace the disk drive assembly. If this resolves the problem, turn to TAG 002: Check &
Problem Resolution. If this does not resolve the problem, replace the IGS board, then turn
to TAG 002: Check & Problem Resolution.
18 Is error code 576 displayed?
No: Go to #21 in this TAG.
Yes: Continue.
19 Turn the printer off and unplug the power cord.
• Disconnect J/P31 and J/P79.
• Check for continuity: