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Old 11-16-2019, 10:39 PM
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Dubis7 Dubis7 is offline
Alchemizes cash to tubes
 
Join Date: Nov 2014
Location: Leesburg, VA.
Posts: 397
Still waiting on C2D to come in. I was doing some work in the power supply tonight.

I've got a new issue. It's my fault. I won't get too into it, I did something stupid trying to check a component and learned my lesson. Blew out R119, M1, C1, and X1. X2 still looks okay, but X1 is now measuring 0 ohms regardless of the polarity. The set blows M1 immediately upon power up. I disconnected the 270V line between C2A and L34 and it still blows, so I know the problem is in the voltage doubler circuit with X1 and X2.

R119, M1, and C1 are now replaced. R119 is now 3.9 ohm 10 watt, and M1 is a 2.5A 250V fast blow fuse. I also took the opportunity to install M2 as it's listed in the schematic, so I'll have that extra protection.

I'm not sure what diode to get to replace X1. Any suggestions? I'm trying to decide if I should go ahead and replace C103 while I'm at it.
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