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ninercar

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I have two D29C051s with PB9929 chassis that I recapped at the same time. The first one works great, but the second one no longer wants to power up, instead it makes a chirping sound. The working chassis works on both tubes, so the tubes are okay.

Both chassis were recapped with the same capacitors, and I have gone over both side-by-side to confirm that nothing is installed backwards, shorted, or otherwise installed improperly. I also replaced the ceramic cap at C808 on both, since it was cracked on the working chassis.

I see that a bad HOT or flyback can be the issue here, but I wouldn't think one would give out on me right after I recap it. I could also use the working chassis to swap parts around to find the culprit, but I fear that a bad component may cause damage to the working parts.

https://www.youtube.com/watch?v=qo19trRyMQI Here's a link to what it is doing, any advice would be appreciated.
 

ninercar

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I checked the Toshiba 2SC5332 HOT, and the resistance measurements I got matched what I measured on the working chassis, so I don't think the HOT is shorted. I might try undoing any capacitor work done in the HV area and see if it starts working again.
 

karoshi

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Were you able to identify the issue with this? Very curious if you shorted the HV.
 

ninercar

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I did a little more investigation, but I just decided to send it in to a repair shop, since I have other things to work on. I'll report back with what the issue was when it gets back to me.
 
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