[Premium-Rx] WJ Won't Power On

[Paolo Viappiani]

Hi Dan:
First, check the output voltages of the various regulators that are present in the receiver: U1 (+15 VDC), U2 (-15 VDC) and U3 (+5 VDC) in the rear panel, U4 (+12 VDC) in the main chassis bottom, MFP-U1 (+5 VDC) behind the front panel of the radio.
Please refer to the WJ-8718A schematic (you can find it in the BAMA website) and to the WJ-8718A/MFP manual.
Most probably one of the above mentioned regulators is at fault.
Please let me know, best wishes!
Regards, Paolo

Inviato da iPhone

Il giorno 13/apr/2018, alle ore 23:27, Dan Robinson <dxace1 at gmail.com> ha scritto:

> Wondering if anyone can help with troubleshooting on this.  My 8718A/MFP
> won't power on.  Was working fine for several hours last night.  Switched
> the fuse, checked the cable, but still no power on. I have a full set of
> spare cards, but no spare power supply.
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