15 Reconnect J/P9.

•Install a good upper fuse in the AC power supply unit.

•Disconnect J/P13 and J/P14.

•Turn the printer on for 5 seconds, then off.

•Remove the fuse.

•Check the fuse for continuity.

Does the fuse have continuity?

No: Replace the power control #2 board, then turn to TAG 002: Check & Problem Resolution .

Yes: Continue.

16 Reconnect J/P13 and J/P14.

•Disconnect J/P20, J/P21, J/P22, and J/P326 (duplex printers).

•Power-on-reset the printer.

•Wait 2-1/2 minutes, then turn the printer off.

•Remove the upper fuse in the AC power supply unit.

•Check the fuse for continuity.

Does the fuse have continuity?

No: Repair or replace connectors or wiring that have continuity to ground: P21-1 to P13-4, P22-1 to P13-6, J326-1 to P13-4, or P20-2 to P14-6; then turn to TAG 002: Check & Problem Resolution.

Yes: Continue.

17 Turn the printer off.

•Reconnect J/P21.

•Turn the printer on for 5 seconds, then off.

•Remove the upper fuse in the AC power supply unit.

•Check the fuse for continuity.

Does the fuse have continuity?

No: Replace the large cooling fan assembly, then turn to TAG 002: Check & Problem Resolution .

Yes: Continue.

18 Turn the printer off.

•Reconnect J/P20.

•Turn the printer on for 2-1/2 minutes, then off.

•Remove the upper fuse from the AC power supply unit.

•Check the fuse for continuity.

Does the fuse have continuity?

No: Replace the main drive motor, then turn to TAG 002: Check & Problem Resolution.

Yes: Continue.

Troubleshooting Analysis Guide (TAGs)

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