[TechAssist] Re: Sony KV27S20 dead, fuse OK.fix
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 11 Oct 2004 17:22:43 -0400
I should have added I checked the HOT transoistor and it was OK. I feel
the mentioned capacitor shorting was the culprit, as main fuse and HOT
being good, with no arcs at the ac input.
I used the Sony G board kit for all these.(order as # G-BOARD-KIT) May
not need all the parts (VDR's,etc) in all versions of TV model, but nice
to have the pack to use as a general parts kit, and less expensive than
a-la-carte purchasing components seperately.
Phil Bader
Phil Bader wrote:
>On the seperate "G" power supply board, found the usual shorted
>Q602,Q602 (C4837) and open R607 (.1 ohm 1W).
>After replacing those parts, I plugged the set in and heard a squeel
>from the board. Quickly unplugged TV. My parts were OK. After
>troubleshooting the G board I found a shorted capacitor in the smps primary:
>C615 (393J 630) value was a .039@ 63V sony# 112972111. Replacment of
>this cap restored normal operation.
>Phil Bader
>
>
>
--
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
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