[TechAssist] Re: *FIXED* Only Snow Below Ch. 51 - CTC177
- From: "Larry E." <videotech@xxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 20 Feb 2004 16:30:01 -0500
Dan, U7301 part # 215534 is probably your problem, on U7501 the op amp check
pins
7,8,14 while channel is set to 2,3,4 etc. if always at 33 volts while changing
channels then
U7301 is your problem, you`ll notice if you go to channel 52,53.54 etc. the
voltage will change
hope this helps, should work for both chassis`s but check the part # for the
CTC175, the number
I gave is for the 187, Larry E
Larry Eastman
American TV & Electronics
Crystal River, Fl. 34428
Dan Garris wrote:
> We have (3) of these sets in our shop with this problem ((Only Snow Below
> Ch. 51))
>
> Two are CTC187 Chassis's
> One is a CTC175 Chassis
>
> We have replaced the stand-up IC #215532 CXA1594L (used Original RCA New in
> bag) and checked the C7323 7pf cap and still have not fixed problem in any
> of them. I've seen a few sets come in lately with this problem. Anyone else
> have success after changing the stand-up IC and still having not fixed the
> problem? What other missed components fixed your problem after the IC?
>
> Dan Garris
> Garris TV
> New Bern, NC 28560
> ph: (252) 638-4477
> dgarris@xxxxxxxxxxx
>
> >From: Bil Green <tv.vcrrepair@xxxxxxxxxxx>
> >Reply-To: techassist@xxxxxxxxxxxxx
> >To: ".TECHASSIST @ freelists . org" <techassist@xxxxxxxxxxxxx>
> >Subject: [TechAssist] *FIXED* Only Snow Below Ch. 51 - CTC177
> >Date: Thu, 19 Feb 2004 23:46:10 -0800
> >
> >Thanks to all that helped with this GE
> >
> >The stand up IC in the tuner was the problem (as most of you guys
> >said)
> >
> >
> >--
> >Best regards,
> >
> > Bil Green
> > 2001 TV VCR
> > Mammoth Lakes, CA 93546
> > 760-934-2001 mailto:tv.vcrrepair@xxxxxxxxxxx
> >
> >Wednesday, February 18, 2004, 10:01:33 PM, you wrote:
> >
> >BG> GE 25" TV
> >BG> Model 25GT515
> >BG> Chassis CTC177AR2
> >
> >BG> No reception below channel 51
> >BG> (only channels 51 on up work)
> >
> >BG> I already used the tips, and checked:
> >
> >BG> for open L7109 in tuner B+ feed to Q7102 VHF RF amp drain
> >BG> (12V OK too) **OK**
> >
> >BG> replace Q7403 **NO HELP**
> >
> >BG> PLEASE HELP
> >
> >
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