Thanks to AJ for confirmation about the PROMS being likely to run warm normally.
I'm afraid a physical inspection of the solder connections on JP8 on the underside of the PCB is becoming increasingly necessary, if only to rule it out, and if you get that far you may as well resolder / reflow the joints on the JP8 connector, assuming you have the means to do so.
In addition to these continuity checks already made:-
Quote:
- JP8 pin 4 to +ve terminal on capacitor was fine; had continuity.
- JP8 pin 2 to +ve terminal on capacitor was fine; had continuity.
- pin 2 on JP8 to left leg of CR10 and CR11 had continuity.
|
...could you also unplug the JP8 plug and check for continuity between the JP8 PCB connector pin 1 and 'Y' indicated on the image posted earlier, JP8 connector pin 5 and 'X' indicated on the image, and JP8 connector pin 3 and 'W' indicated on the image?