Thread: Newbie's First Questions RCA TS 721 Restoration
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Old 07-08-2022, 01:50 PM
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Yamamaya42 Yamamaya42 is offline
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Quote:
Originally Posted by Chris K View Post
Could be and I had a problem with the 40uf C131 electrolytic section. I did a direct replacement but...the positive side of C131A is where the 260V DC from the 5U4 (pin 8) comes off into the system. The 260V is also connected to the positive side of the 40uf section of C128. I have the negative sides of 3 electrolytic sections C128B, C127A and C131A going to the negative side of C128A. The positive of 128A goes to ground. I have a feeling this is where I messed things up. There was no connection between C131A+ and C128B+ so I put a jumper in and the set began to work developing HV and a picture for the first time. But I did do something that wasn't there before Maybe this is where things got messed up. One more question...the 62 ohm field coil. Where is that? Doing the trace, the yellow and black wires seem to go to the speaker! Is that correct??? I didn't touch anything here I swear!!!
The answer to that is in the parts list.
Speaker 4x6 elliptical E.M. … electromagnetic, there is no perm magnet , it uses a coil. :O
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