[TechAssist] Re: GE - 31GT657FM1, Chassis CTC177CC

  • From: "Premium Technologies" <premtech@xxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Sun, 13 Jan 2002 19:03:47 -0800

Well I guess you could say the bottom is stretched, if there were a picture 
there at all.  The normal horizontal line that you get when the vertical has 
collapsed isn't through the middle of the screen, but about one quarter of the 
way down from the top of the screen.  Audio is there, with no distortions, and 
I've run out of ideas what to test next.
Bill
  ----- Original Message ----- 
  From: al m 
  To: techassist@xxxxxxxxxxxxx 
  Sent: Sunday, January 13, 2002 7:57 PM
  Subject: [TechAssist] Re: GE - 31GT657FM1, Chassis CTC177CC



  does the bottom look stretched i have a ctc195 doing the same thing
  al marquardt
  ampm@xxxxxxx


  ----- Original Message -----
  From: "Premium Technologies" <premtech@xxxxxxxxxxxxxx>
  To: <techassist@xxxxxxxxxxxxx>
  Sent: Sunday, January 13, 2002 3:09 PM
  Subject: [TechAssist] GE - 31GT657FM1, Chassis CTC177CC


  > Content-Type: text/plain;
  > charset="Windows-1252"
  > Content-Transfer-Encoding: quoted-printable
  >
  > BlankGentlemen,
  > I'm having an elusive vertical problem with the above described which is =
  > producing a horizontal line 1/4 of the way down from the top of the =
  > screen.  No schematic on this one, but from past experience it seems my =
  > in voltage might be low on the vertical deflector U4501.
  > I've replaced U4501,  and about 8 of caps in that circuit, (C-4502, =
  > 4108, 4107, 4506, 4505, 4705, 4112, 4404) with no change in symptoms.  =
  > My voltage readings on pin 1 and 2 of U4501 are 13.4 and 24.7 =
  > respectively, and 23.0 on 5-Vout.
  > I've traced circuit for open shorts with no luck, and quickly running =
  > out of patience.  Any help would be appreciated...
  > Bill
  > Premium Technologies
  > Ocean Park, Washington
  >
  >
  >
  >
  >
  >
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