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

  • From: "Don Hartigan" <hartstv@xxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Tue, 20 Sep 2005 11:45:30 -0300

Tks John;CR14501checked good but may be breaking down under load;will let 
you know....................
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: "John Mielke" <maintv2004@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, September 19, 2005 6:19 PM
Subject: [TechAssist] Re: Fw: [TechAssist-B] Re: 
RCA-27"TV-M#27649,C#CTC203,Vert


> The CTC203 can use either a TDA8172 (215531) with the smaller screen or
> TDA8177 (232109) on larger screens.  However if you picture is divided 
> right
> across the middle with no picture on top, your problem may be CR14501, the
> vertical boost diode.  That is a common failure with the ATC113 (DF01). 
> I'm
> not sure if TDA8172 and 8177 are interchangeable.  John Mielke
> Main TV
> 636 Main St
> Longmont, Co 80501
> 303 776 6955
> 303 776 0792 fax
> www.longmontmaintv.com
> maintv2004@xxxxxxxxxxx
> ----- Original Message ----- 
> From: "Don Hartigan" <hartstv@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, September 19, 2005 2:18 PM
> Subject: [TechAssist] Re: Fw: [TechAssist-B] Re:
> RCA-27"TV-M#27649,C#CTC203,Vert
>
>
>> Ken;You may be right.Will order the TDA8177=232109.Got an email from Jim
>> saying part# is 215531,??,maybe that is for the TDA8172...Got emails from
>> Paul & Phillip giving the 232109 so I'm hopeing this will get me the
>> TDA8177........
>> 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: <gulftech@xxxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Monday, September 19, 2005 3:36 PM
>> Subject: [TechAssist] Re: Fw: [TechAssist-B] Re:
>> RCA-27"TV-M#27649,C#CTC203,Vert
>>
>>
>> > Don,
>> >
>> > Assuming model number is F27649, U14501 is 232109.  Note says that
> number
>> > is TDA 8177, which is a replacement for TDA8172.  May be like the 
>> > LA7837
>> > - LA7838.  You can use the 38 to replace a 37, but not the other way
>> > around.
>> >
>> > HTH,
>> >
>> >
>> > Ken Smith
>> > Gulf Technical Services
>> > 3034 Gulf Breeze Parkway
>> > Gulf Breeze, FL  32563
>> > 850-934-8324 (Voice) 850-932-0819 (Fax)
>> >
>> > On Mon, 19 Sep 2005 15:09:49 -0300 "Don Hartigan" <hartstv@xxxxxxxxxxx>
>> > writes:
>> >> 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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