[TechAssist] fix Sanyo 19" TV, AVM1905 reg B+ 135V sags, unstable
- From: Philip Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 05 Jun 2003 12:56:42 -0400
It appears the STR30135 was the fix.Stable output now from the STR.Will
cook it in. I noticed the HOT has new solder and heat sink goo on it,
maybe another shop replaced the HOT,which stressed this regulator.
Thanks,all.
Phil Bader
Philip Bader wrote:
>
> Comes on and plays OK until warm and picture fluctuated all sides as
> scene brightness changes.Customer said it "rolled" but it's the
> STR30135's regulated output fluctuating.Turn brightness down low and
> voltage increases closer to normal.Output is sagging under load.
> Looks like it's been worked on before, so:
> I need to verify these PS parts are correct:
> IC001 (STR30135?)
> R005 (220K ohm?)
> R006 (47 ohm?)
> R004 (10K?)
> R007 (5.6 ohm?)
> Tritronics' model parts look up is incomplete.
> Thanks.
> 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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--
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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