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I was using it to clean the thermal paste off of the heat sinks and it flowed downward onto the meters and plastic. It fogged up the plastic and I couldn’t get it to clean off after the fact.

Anyone have a faceplate with meters for sale? I spilled isopropyl alcohol on this and wrecked the plastic that covers the meters. And while cleaning the meters, I slipped and bent the meter arm :facepalm: Already checked eBay. No dice. Shipping will be to La Mesa, California.

Yes, I did use the lightbulb test. It did not show any shorts. In addition to this, the relay engages properly. I will check with diode scale.

After some searching, I found the issues that solved the above problems. The fuse for B+ popped when I shorted to chassis a few weeks ago. Easy fix and we’re back to proper voltages. In addition to this, I had neglected to attach the new ground from the RCA inputs to chassis, therefore there was...

Rookie mistake. I had a floating ground at the inputs. Now voltages are looking much better, but need a replacement AGX-8 fuse. There’s no B+ going to the Watts Abundant relay setup I added. Will update when I am finished. Also, I have every intention of picking up one of those control boards. I...

Hi gents, I’ve been working on a mid-70’s PL400 and am a little stumped on what could be wrong. Initially, I was just going to recap the driver board and replace filter capacitors, but during the process, I made the mistake of shorting B+ to chassis. Whoops. I ended up replacing all 12 of the...