My Bridge Rectifier kit came from Marco (I was surprised how fast).
Most of the original capacitors were out of spec on my ESR, the 'worst' was measuring 9202uF. Closest one was 13000uF- they're supposed to be 15000uF
The capacitors have thick hook like legs, so my desoldering gun didn't really work with it. I did lift a trace on C30 capacitor when it popped out before I had removed all the solder. I was able to solder to the remaining trace, run the wire through the whole and wrap it on the capacitor leg. Tested ok. See pics for how I resolved it.
The rest of the repair went as planned. The voltages are much better, 5.01vdc at TP2 and the CPU board is coming in at 4.97vdc at the chip leg.
Board powered on, all LEDs are lit, game booted, game on, BUT...
The playfield lights are not working - general illumination is, but 'The Final Frontier', 'Shoot Again' and the mission lights are not working.
Any hints as to where I made a mistake?
Update - figured out my loss of play field lamps was due to a lack of 18vdc. The C7 top positive trace must have lifted as well as there was no continuity from TP8 (18vdc) to the positive posts of C7 (but there was to C6). I added a jumper wire on the back between the + posts of C7 and C6 and that resolved it.
Test Point voltages in the Power Driver Board, in case someone asks:
TP1 - 13.45vdc
TP2 - 5.02vdc
TP3 - 11.89vdc
TP6 - 71.1vdc
TP7 - 21.1vdc
TP8 - 0.03vdc (is this right?) Update - no this is not right. When working is now 14-17vdc
PowerDriverBoard-C30TraceLifted (resized).jpgPowerDriverBoard-Tracerepair1 (resized).jpgPowerDriverBoard-C30TraceRepair2 (resized).jpg