Ujf-3042 MKII

[jdragun]

Old machine. Been sitting forever. Powered up for a few seconds, then shut down. Heard the 48v power supply fans spin. Now nothing. On PCB b d11 and k LEDs just flash. They were on steady before. I see no popped anything on the board, all fuses test fine. Tried isolating PCB b by removing all but the power lead, still flashing on those LEDs. Any ideas?

 

[Smoke_Jaguar]

Hold Up/Down arrows when booting to see if it at least goes into Parameter mode. Might be a bad EPL board.

 

[jdragun]

Nothing holding up and down. Just those LEDs flashing on the PCB. Feels like something is blown.

 

[Smoke_Jaguar]

I'd lean towards EPL board, it's basically the motherboard. It takes control input and operates the screen and can run solo as long as it has power.

 

[jdragun]

Will an epl2 board work enough to test if the EPL 3 board is bad? I have a spare epl2, but I think the faulty board is the EPL 3.

 

[Smoke_Jaguar]

I think 3's and 5's are compatible, a 2 'might' work. However, note that before moving an EPL board from one model of printer to another, it needs to be flashed with a special generic firmware for compatibility before it can then be flashed to a model specific firmware.