[TechAssist] Fw: [TechAssist-B] Re: RCA-27"TV-M#27649,C#CTC203,Vert

  • From: "Don Hartigan" <hartstv@xxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Mon, 19 Sep 2005 15:09:49 -0300

Need part# for U14501=TDA8177...TIA...
Don of HARTS-TVCR"ASC"
9 Robert St.,Oromocto,NB,Canada,E2V3N2
Tel#506-357-9785,Fax#506-357-6010
hartstv@xxxxxxxxxxx
----- Original Message ----- 
From: "Don Hartigan" <hartstv@xxxxxxxxxxx>
To: <repair@xxxxxxxxxxxxxxx>
Sent: Monday, September 19, 2005 2:03 PM
Subject: Re: [TechAssist-B] Re: RCA-27"TV-M#27649,C#CTC203,Vert


> Yes,it checked OK,Al...........
> Don of HARTS-TVCR"ASC"
> 9 Robert St.,Oromocto,NB,Canada,E2V3N2
> Tel#506-357-9785,Fax#506-357-6010
> hartstv@xxxxxxxxxxx
> ----- Original Message ----- 
> From: "al m" <ampm@xxxxxxx>
> To: <repair@xxxxxxxxxxxxxxx>
> Sent: Monday, September 19, 2005 1:04 PM
> Subject: [TechAssist-B] Re: RCA-27"TV-M#27649,C#CTC203,Vert
>
>
>> Usually the vertical B+ filter cap off the flyback causes foldover. Did 
>> you
>> change that?
>> Al Marquardt
>> ampm@xxxxxxx
>> Al Marquardt Electronic Repair
>> 206 W Main
>> Girardville Pa. 17935
>> ----- Original Message ----- 
>> From: "Don Hartigan" <hartstv@xxxxxxxxxxx>
>> To: <repair@xxxxxxxxxxxxxxx>
>> Sent: Monday, September 19, 2005 11:24 AM
>> Subject: [TechAssist-B] RCA-27"TV-M#27649,C#CTC203,Vert
>>
>>
>>> Unit had 1/2 screen of vert. sweep.Replaced the TDA8177 with a
>>> TDA8172[data sheets on these 2 ic's are identical].This restored my 
>>> vert.
>>> sweep to full screen but the top of pix has bad retrace,ie,looks like
>>> vert. foldover.I checked all resistors,caps in the vert. cct.Also 
>>> replaced
>>> the T-chip & Eprom.Don't have a TDA8177 in stock.Wondering if I have 
>>> shot
>>> myself in the foot using a TDA8172 as a test replacement & have created
>>> this problem using this sub.Has anyone used a TDA8172 to replace the
>>> TDA8177?I will order the TDA8177,but wondering if I have missed 
>>> something
>>> that may be causing this problem.....TIA.....
>>> Don of HARTS-TVCR"ASC"
>>> 9 Robert St.,Oromocto,NB,Canada,E2V3N2
>>> Tel#506-357-9785,Fax#506-357-6010
>>> hartstv@xxxxxxxxxxx
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