[TechAssist] Re: Magnavox 27TS54C101 Repeat Vertical failure
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 14 May 2003 07:14:37 -0400
John,
You may have a bad yoke. Check the following components first:
D445
R445
D409
R420
C447 (at TP5, cathode of D445)
R551
C551
C557
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
www.geminicomputertvsecurityalarms.com
----- Original Message -----
From: "John Florea" <Watcher-@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, May 13, 2003 9:16 PM
Subject: [TechAssist] Re: Magnavox 27TS54C101 Repeat Vertical failure
>
> Ok, I typed in repeat vertical failure in the archives, and it came up
with
> C447. I am going to replace that along with the new output. I am only
> getting 11.5 v on TP5.
>
>
> John Florea Jr. Affordable Electronics Tumwater Washington.
>
>
> ----- Original Message -----
> From: "John Florea" <Watcher-@xxxxxxx>
> To: "techassist" <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, May 13, 2003 5:54 PM
> Subject: [TechAssist] Magnavox 27TS54C101 Repeat Vertical failure
>
>
> > Does anyone know why this unit might have a repeat failure of the
> vertical? I replaced the output, and D409 and R420. I also replaced IC346.
> Set came up fine on the bench, I let it run for 25 mins. Checked the temp
on
> all components, no problems. I put the cover back on and fired it up for
> burn-in, and the vertical went nuts. I have gone over the entire board
with
> a magnifying glass and a DMM there are no breaks or bridges causing this.
I
> only use Philips components, and I suppose it might just be a bad part,
> but...before I go putting another one in there, I thought I would check to
> see if anyone else had this happen before. Thanks in advance, John.
> >
> >
> > John Florea Jr.
> > Affordable Electronics
> > Tumwater Washington.
> >
> >
>
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