Did a little cleanup and re-attached a resistor. After some testing it appears the transformer secondary 110v is bad. Gonna be interesting finding a replacement
Finally circling back around to a crane I picked up a couple years back for $100. The gantry returns to home as it should. The claw coil won't energize consistently and now it won't start a game.
Pulled the relay board to investigate closer. Found a couple obvious issues here and there but the...
Im going to make an attempt to repair this amp. Any input or ideas on the symptom? Video with audio below.
Amp Fault
As soon as the amp is plugged in, it starts to make this terrible noise. Different amp in the same machine works fine.
This amp worked fine until a storm that lead to a power...
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So this and a jamma switcher, as well as an HDMI switcher or using separate inputs on screen, could be a viable option instead of a $500 Perfect Solutions Switcher?
I'm definitely going to dive into the schematics a bit more when time allows. I am far more knowledgeable with pinball machines than these monsters.
I did pull apart the amp and do a visual inspection and some preliminary basic testing. Nothing jumping out. No burnt resistors, swollen/burst...
I wasn't clear, I don't have an issue on the mute circuit. I don't have a clue what it is/does. That question related to the idea of replacing the rowe amp with something else and how that would be affected.
Unfortunately repair requires shipping the unit out to someone who works on
rowe amps...
Random thoughts. Has anyone ventured to replace the cd100 amp with something different?
Amp rebuilds are fairly pricey these days(~$350), significantly more than modern amps.
What is haven't sorted yet is the mute circuit on the amp. I've skimmed the schematics briefly but haven't dove in deep...