[TechAssist] Re: Proscan PS31122, CTC169EJ5 dead.( heard one HV surge at turn on) fixed. now bowed side
- From: "tvservice" <tvservice@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 13 Jan 2005 17:10:57 -0600
U4801 pin driver ic #240819 or LM311N
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
----- Original Message -----
From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, January 13, 2005 4:29 PM
Subject: [TechAssist] Re: Proscan PS31122, CTC169EJ5 dead.( heard one HV
surge at turn on) fixed. now bowed side
> I originally /did/ replace C4401, thats how I got the set up and running
> (one leg cold solder/arced).
> I then had the side bow. I since found pin transistor Q4802 leaky
> (MPS651/200168) and replaced it also, no improvement.
> I replaced C4402 as a test (.056) also no help. Checked the diodes
> mentioned (CR4401,4402) seem OK.
> I pulled and checked transistor Q4803 but tested OK.
> I'm stumped.
> Phil Bader
>
> gulftech@xxxxxxxx wrote:
>
> >Probably bad C4401. See the following info:
> >
> >---------------------------------------------------------------
> >Text pasted from WinSTIPS 2.0
> >http://www.ServiceSoftware.com
> >---------------------------------------------------------------
> >
> >RCA CTC169
> >
> >Horizontal Pincushion
> >
> >Bob Waterman Gemini Computer & Tv
> >
> >Replace Diodes Cr4401, Cr4402 And Capacitors C4401, C4402
> >
> >---------------------------------------------------------------
> >
> >---------------------------------------------------------------
> >
> >RCA CTC169
> >
> >Pincushion Bow. No Adjust
> >
> >Lon
> >
> >Q4802 Labeled Q802
> >
> >---------------------------------------------------------------
> >
> >---------------------------------------------------------------
> >
> >RCA CTC169
> >
> >Pincushion Problem- Sides Bowed In
> >
> >William Burkhalter
> >
> >U4801 Lm311n
> >
> >---------------------------------------------------------------
> >
> >
> >Ken Smith
> >Gulf Technical Services
> >3034 Gulf Breeze Parkway
> >Gulf Breeze, FL 32563
> >850-934-8324 (Voice), 850-932-0819 (fax)
> >
> >
> >
> >On Thu, 13 Jan 2005 16:18:43 -0500 Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
> >writes:
> >
> >
> >>I plugged it in, pushed power and one HV surge heard, then dead. Push
> >>
> >>power button again and a low arc noise from acassis.
> >>Inspection found scan cap C4401 (.0162@1600V # 206009) had one leg
> >>arced
> >>in solder hole. I replaced it and the set now powers up with good
> >>pix
> >>and sound except it seems bowed on side like pincushion.
> >>Phil Bader
> >>
> >>--
> >>
> >>Philip Bader
> >>Jan Phyl TV Inc. (estab. 1976)
> >>3420 Recker Hwy. Winter Haven, Fl. 33880
> >>Fax (863) 299-8821
> >>email: tjanphyl@xxxxxxxxxxxxxxx
> >>
> >>
> >>
> >>--
> >>No virus found in this outgoing message.
> >>Checked by AVG Anti-Virus.
> >>Version: 7.0.300 / Virus Database: 265.6.10 - Release Date:
> >>1/10/2005
> >>
> >>
> >>
> >>
> >>
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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
>
>
>
> --
> No virus found in this outgoing message.
> Checked by AVG Anti-Virus.
> Version: 7.0.300 / Virus Database: 265.6.10 - Release Date: 1/10/2005
>
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