[TechAssist] Re: RCA F35100ST / CTC169BG dead (set from hell) FIX
- From: Philip Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 09 Oct 2003 17:47:03 -0400
CR4118 is a given for me now a days! Yes! Even if theres a sound issue!
Phil Bader
"Phillip R. Hull" wrote:
>
> I hope you replaced Cr4118 also
> Phillip R. Hull STET
> phil245@xxxxxxxxxxxxx
> FAX 517-569-2242
> ----- Original Message -----
> From: "Philip Bader" <tjanphyl@xxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, October 09, 2003 3:28 PM
> Subject: [TechAssist] RCA F35100ST / CTC169BG dead (set from hell) FIX
>
> > WE sold this 500 pound Buick to a nice lady over a year and a half ago
> > for the repair bill.
> > It's Baaaaaaaaaack...
> > Symptom # 1).
> > Came in dead. HOT (2SD1885) shorted.Replaced it. Powered up.
> > Symptom # 2)
> > Ran awhile and HOT was running hot and noticed with brightness changes
> > the screen seemed to fluctuate H. width a bit.
> > I installad a "scan kit" (C4401,c4402,c4403,c4406,cr4401,cr4402, and HOT
> > Q4401 2sd1885,used 200167).
> > Now HOT ran cool, picture steady.
> > Symptom # 3).
> > After warming up (5-10 min) picture got two bands of jagged lines thru
> > pix and in 3 seconds shut down.Unplug awhile to "reset". Did this
> > repeatedly every time I unplugged it and powered it up again,but my HOT
> > was always good, undamaged.
> > With three seconds to look, I narrowed it down to cool-spraying the
> > jungle area it would clear and stay on as long as I continually cooled
> > area.
> > Further narrowed to the culprit:
> > Crystal "32X Horiz.resonator" Y4301 (RCA# 200210) The small square blue
> > crystal next to the jungle IC.(actual part cooling helped)
> > Symptom # 4)
> > Intermittant color. Goog B&W. usually when I just turned it on. May
> > "snap" into color in a bit.Then seemed to stay OK.
> > First, chemically cleaned (de-flux it) around jungle chip area and
> > resonator.
> > Second, read a post of a bad trace causing this: Trace between L4702 and
> > C4705, measured 3K. Install jumper wire. Location: I15- H15 on board.
> > Color restored.
> > Follow up: As a precaution I replaced the smps electrolytics,too.
> > Has been running good all day now so far...
> > I also lit a candle. Need all the help I can get...Geez.
> >
> > Phil Bader
> > --
> > Philip Bader
> > Jan Phyl TV Inc. (estab. 1976)
> > 3420 Recker Hwy. Winter Haven, Fl. 33880
> > Fax (863) 299-8821
> > email: tjanphyl@xxxxxxxxxxxxxxx
> > For Professional Technicians Only
> >
> >
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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
For Professional Technicians Only
*****************************************************************************
Classifieds! Buy or Sell!
http://sell.tech-assist.org
The Tech Address Book:
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