5 Is error code 572 displayed?

No: Go to #7 in this TAG.

Yes: Continue.

6 Turn the printer off and unplug the power cord.

•Disconnect J/P31 and J/P79.

•Check P31-28 to P79-28 for continuity to ground.

Is there continuity?

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.

7 Is error code 573 displayed?

No: Go to #13 in this TAG.

Yes: Continue.

8 Turn the printer on.

•Check J/P8-1 for +5 Vdc.

Is the voltage +5 Vdc?

No: Replace the DC power supply unit, then turn to TAG 002: Check & Problem Resolution.

Yes: Continue.

9 Check J/P77-4 for +5 Vdc.

Is the voltage +5 Vdc?

No: Repair or replace the connectors or wiring from P8-1 to P77-4, then turn to TAG 002: Check & Problem Resolution.

Yes: Continue.

10 Check J/P8-3 for +12 Vdc.

Is the voltage +12 Vdc?

No: Replace the DC power supply unit, then turn to TAG 002: Check & Problem Resolution.

Yes: Continue.

11 Check J/P77-1 for +12 Vdc.

Is the voltage +12 Vdc?

No: Repair or replace the connectors or wiring from P8-3 to P77-1, then turn to TAG 002: Check & Problem Resolution.

Yes: Continue.

12 Turn the printer off and unplug the power cord.

•Disconnect J/P31 and J/P79.

•Check for continuity to ground: P31-34 to P79-34, P31-32 to P79-32, P31-16 to P79-16, and

Troubleshooting Analysis Guide (TAGs)

3-105