[TechAssist] Re: RCA F27672ET CTC187BD2
- From: "Terry H." <tvdoc@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 20 Oct 2003 17:14:11 -0500
Nope. It would be no different than running the screen control to minimum.
When it's shorting, and it doesn't have to be constant, you can measure G2
voltage and watch it drop. Pulling the crt board and measuring, you would
see it pop back to normal.
Terry H.
The TV Shop
Gonzales, Tx
----- Original Message -----
From: "Kevin" <kevintv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, October 20, 2003 3:48 PM
Subject: [TechAssist] Re: RCA F27672ET CTC187BD2
> Wouldn't a G2 short make the picture go very bright?
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Terry H.
> Sent: Monday, October 20, 2003 1:21 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: RCA F27672ET CTC187BD2
>
> Neil, you most likely have a G2 short and is easily removed. Pull the
> crt
> board, put a clip lead on the G2 pin the other end to a long
> screwdriver.
> Fire the set up then off. Discharge the crt into that pin. If it doesn't
> work the first time, do it again. The crt is already toast so you don't
> have
> alot to lose. Before trying all this, check the G1 pin when it's
> happening.
> Should be around 21 volts or so. If you're getting more than 100, then
> the
> G1 bypass cap is bad. HTH
> Terry H.
> The TV Shop
> Gonzales, Tx
>
> ----- Original Message -----
> From: "Kevin" <kevintv@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, October 20, 2003 3:04 PM
> Subject: [TechAssist] Re: RCA F27672ET CTC187BD2
>
>
> > I have seen this problem with Zenith picture tubes, and the cause is a
> > bad connection inside the picture tube. I have seen it twice with 20"
> > RCA's. HTH
> >
> > Kevin Wilks
> > Kevin's TV & Video Repair
> > Penticton BC Canada
> > kevintv@xxxxxxx
> >
> >
> > -----Original Message-----
> > From: techassist-bounce@xxxxxxxxxxxxx
> > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Neil Bowman
> > Sent: Monday, October 20, 2003 12:23 PM
> > To: techassist@xxxxxxxxxxxxx
> > Subject: [TechAssist] RCA F27672ET CTC187BD2
> >
> > I worked on this unit last week for bowed picture and it turned out
> that
> > cc4407 was the problem. Set worked fine for 2 days in shop. Customer
> > takes it home and calls the next day and says that the picture is goes
> > very dark. I put it on my bench with nice picture, then 5 minutes
> later
> > it went dark. Screen control is ok, it adjusts, just very dark video.
> > Even the menu is very dark. I tried freezing to bring video back, but
> no
> > go. Any tips on this one? Neil
> >
> > Tv Doctors
> > Monroe,Wa
> >
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