Who knows some circuit board repair?

[Nwojedi]

I've been working on this board that's in the GNR I just purchased. It's giving me some issues.

So here it goes. This will sound foriegn to someone who doesn't know circuitry, but someone will know what i'm talking about.

I have a loss of power on a 32vdc line. Power comming off the BR is 25vdc, got to a fuse (which is good), and then to a 25vdc relay. The relay is suppose to toggle between 50vdc and 32vdc coils/flashers. This isn't happening. I manually triggered the relay, and nothing has changed. I did a direct ground to the transistor that activates the relay. Still doesn't click. Shouldn't take that much power to have the relay activate. But if i'm getting power off the BR direct to the Relay, why isn't the line working?

[molson]

Is the 32V rail good upstream of the relay?

If so, try replacing the relay. Based on a couple of things you've mentioned, that's where I'd start anyway.

If that doesn't do it, or if the 32V is bad above the relay, work upstream to see why you've lost the 32V.

That's about all I can give you without seeing more...

[Nwojedi]

i'll jot down my voltages from teh transformer all the way to the relay. i'm not sure if i'm testing the AC right or not. Been testing across an open gap.

[Nwojedi]

ok, now i'm only getting 5 volts to the BR, which comes direct from the transformer. Transformers hardly ever go bad. Both transformers do the exact same thing. What is the chances of having two transformers go bad in the exact same area?

[Nwojedi]

problem solved. I'll be making a trip to radio shack tomorrow. :/ Problem was actually upstream to a faulty capacitor sucking up all my volts. Go figure.

[molson]

Sounds good. Don't you just hate it when caps suck up all the volts like that... just remember to make sure you've collected all the runaway ohms before you button up the board...
[\EE joke]

[Nwojedi]

you know. it wasn't the cap at all. I replaced them both, same problem. Got frustrated, put the old transformer back in, same problem. I was at a loss. When I was working on a different issue, ran across a connection that was off a switch on the coin door. Wasn't in the circuit I was testing. Put the connection on..everything worked. I don't know how it could effect my circuit without being part of it. Unless that swtich is before the transformer. Which I didn't think you could have anything before it. I don't know. but I could have had this running 2 days ago without any soldering or trips to the electronics store. BTW radio shacks selection of Caps blows azz. All is working now. Rock on