Re: SMPS help needed - Philips VCR

On 06 Aug 2008 19:16:33 -0400, sam@xxxxxxxxxxxxxx (Samuel M.
Goldwasser) put finger to keyboard and composed:

While you're at it, it would be worthwhile to check the electrolytic
caps for ESR and uF. If the zener is shorted, the cause may be bad
caps.

Thanks for the followup.

I just remembered that I've seen faults in Sharp VCRs (Philips VCRs
are often rebadged Sharps) where the zener isn't actually shorted, but
is protecting the outputs from an overvoltage caused by a small
electrolytic cap on the primary side of the supply. In this case I'd
change CO11 just for good measure.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.
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