[TechAssist] Re: Zenith module# 9-1426 power supply problem
- From: "Shaun" <ssroark@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 15 Oct 2001 21:27:02 -0600
I also had one of these repaired by PTS and it has a squeel in standby I
never found the problem but PTS said its a bad transistor near the back left
corner of the module that has a heat sink attached to it the transistor was
out of sink with the coil it goes to it worked fine just squeeled in
standby.
----- Original Message -----
From: "Mike Barnett" <passthecash@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, October 15, 2001 12:02 PM
Subject: [TechAssist] Zenith module# 9-1426 power supply problem
>
> This unit came in with horizonal retrace lines and no video, Checked video
> out transistors on crt board and found only 12vdc on collector.
> replaced rx3277/2.7ohm 1/2 watt resistor. This took care of the problem.
The
> set works fine exept for squeel coming from qx3401 when set is in stanby.
I
> checked all caps in this caps in this curcuit, all are fine. Anyone know
> what might be causing this device to squeel?
>
> TIA,
> Mike
>
>
>
> Get It Fixed At
> Rochester Electronics
> 630 West Ridge Rd.
> Rochester, NY 14615
> 716.663.6870
> www.RochesterElectronicsRepair.com
>
>
>
>
>
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