[TechAssist] FIX: Symphonic 13" TVCR combi, has "snivits" interference thru pix, even in AUX.
- From: Phil Bader <philbad@xxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 16 Sep 2002 11:07:40 -0400
Condition was present in "play", tuner, and "AUX" with no video
connected.
Cure turned out to be two borderline electrolytics in the power supply:
C624 (470/16V) measured 321mfd, ESR: 14 ohms.
C608 (.22, thats point-two-two/50V) measured .1, ESR: 15 ohms.
THIS IS WHERE AN ESR METER IS A MUST!!!
Replaced both, all seems OK.
This model has main board and power supply all one, with the
horiz/flyback/vert seperate side mounted assy.
Phil Bader
Phil Bader wrote:
>
> Looks like interference lines ( and swirls)with an area of bending.All
> superimposed over picture. Not bending or distorting it. Closest thing
> to it is medical diathermy interference bands.
> I assume there may be a small electrolytic open allowing "hash" to enter
> a signal circuit.
> Any past histories on this model?
> Phil Bader
> --
> Philip Bader
> Jan Phyl TV Inc. (estab. 1976)
> 3420 Recker Hwy. Winter Haven, Fl. 33880
> Fax (863) 299-8821
> email: philbad@xxxxxxxxxx
>
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--
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: philbad@xxxxxxxxxx
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