[TechAssist] Re: GE TV 20GP260A with TX80.5 mainboard
- From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 9 Feb 2002 10:55:14 -0500
If you disconnect the crt board when the G2 is at 80v does it go back up? Is
your B+ always at 130v during the failure? If so, you can discount the power
supply as the cause, and if your g2 pops back up, most likely your IHVT or
Lopt is ok and it's your CRT.
If your G2 is at 80v when the CRT is disconnected and your B+ is at 130v,
suspect IHVT (or LOPT if you're european). If your 130 V supply is
fluctuating then start there.
Sorry, no schematics to help you with.
Damon Brunger
damon101@xxxxxxxxxxxxxx
Telrad Electronic Services
Ft Wayne, IN 46815
----- Original Message -----
From: "Sam Faber" <sfaber@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, February 09, 2002 2:51 AM
Subject: [TechAssist] GE TV 20GP260A with TX80.5 mainboard
> Hi All,
>
> Has anyone a circuit for a GE 20GP260A television, it has a TX80.5 main
board. Especially the line output stage and the power supply.
>
> The symptoms are, picture goes very dark after about 10 to 15 minutes.
>
> The G2 voltage on the CRT drops to about 80V.
>
> Regards Sam Faber
>
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