Fuses OK.

Tech Square

Technical and speculative discussion of amps, cables and other topics.

In Reply to: RE: A shot in the dark (Levinson ML-11). posted by Nagratech on January 14, 2010 at 12:00:17:

All externally and internally accessible fuses checked out OK. The rail fuses were located on a small board along with 8 diodes and what I believe are some caps (pinkish rectangular components), but I can't be sure since there were no units printed on them. I also checked for continuity between the traces and the diode leads.

I think the 8 diodes must comprise 2 bridge rectifier circuits, and I believe that if one of the diodes in a bridge were to go open, then the rectification degrades to half-wave rather than full-wave.

When a diode fails, does it typically go open?

Could this cause the symptoms I described?

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Follow Ups Full Thread

Topic - A shot in the dark (Levinson ML-11). - YRY 13:46:46 01/13/10 (5)

RE: A shot in the dark (Levinson ML-11). - Nagratech 12:00:17 01/14/10 (4)

Fuses OK. - YRY 11:19:29 01/20/10 (3)

RE: Fuses OK. - Nagratech 11:13:21 01/25/10 (2)

Thanks for your responses. - YRY 11:46:51 01/25/10 (1)

Diode checking - Nagratech 08:36:06 01/28/10 (0)

Follow Ups

Fuses OK. - YRY 11:19:29 01/20/10 (3)

RE: Fuses OK. - Nagratech 11:13:21 01/25/10 (2)

Thanks for your responses. - YRY 11:46:51 01/25/10 (1)

Diode checking - Nagratech 08:36:06 01/28/10 (0)

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