February 27, 2024, 04:52:29 PM

Author Topic: Resistance check at 37  (Read 63 times)

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Offline hpleung

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Resistance check at 37
« on: February 18, 2024, 08:30:58 AM »
The resistance check between Terminal 8 and Terminal 37 is 1.01 kilo ohm. It is supposed to measure close to 0.

On the other side; terminal 8 and terminal 28 measures 0.2 ohm. So this looks good.

Looking for guidance on where to look.

Offline Paul Birkeland

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Re: Resistance check at 37
« Reply #1 on: February 18, 2024, 08:50:24 AM »
Neg Out on the board jumpers to -reg, -reg leaves to other various places to provide ground references.  That board doesn't look well soldered, so I would start there, but otherwise follow the black wires back from Neg Out until you don't see that 1K resistance, then start resoldering where the black wires land until that goes away.

If you have 0 ohms at -reg, then you know you're down to soldering issues on that board.
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man