[TechAssist] Re: Fw: 20GT375 CTC176E No channels above 50 UPDATE

  • From: Wayne Vanaman <Wayne@xxxxxxxxxxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Fri, 21 Oct 2005 06:44:44 -0500

Al:
To determine if it is an AGE problem within the processor you have to 
vary the IF input and monitor the output.

Wayne Vanaman
Omega Electronics
6904 W Fairfield Dr
Pensacola, Fl.  32506-3310

Wayne@xxxxxxxxxxxxxxxxxxxxx
WWW.PensacolaTVRepair.Com

850-456-5995 voice
850-458-6369 fax


al m wrote:
> I changed both IC's and same thing. I did notice the AGC isn't changing. Put 
> IF in from My sencore and Perfect picture and AGC is down to 5V.Checked 
> voltages on the op amp outputs with the cable connected and they are within 
> ( . )1V. This has got me by the balls. It;s only a 20" tv, but I would like 
> to find the problem. Any Ideas?
> 
> Al Marquardt
> ampm@xxxxxxx
> Al Marquardt Electronic Repair
> 206 W Main
> Girardville Pa. 17935
> ----- Original Message ----- 
> From: "al m" <ampm@xxxxxxx>
> To: "tech assist" <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, October 19, 2005 2:01 PM
> Subject: [TechAssist] Fw: 20GT375 CTC176E No channels above 50
> 
> 
> 
>>>I know I saw this here but I can't find it in the archives or my tips. I
>>>think you replace U7401 for this. I know anything below 50 is U7301.
>>>Al Marquardt
>>>ampm@xxxxxxx
>>>Al Marquardt Electronic Repair
>>>206 W Main
>>>Girardville Pa. 17935
>>>
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