[TechAssist] Re: Proscan PS31122, CTC169EJ5 dead.( heard one HV surge at turn on) fixed. now bowed side
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 13 Jan 2005 17:29:42 -0500
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
>>
>>
>>
>>--
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>>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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