[TechAssist] Re: Symphonic SC3819 TV/VCR Combo-dead
- From: "RB Service" <megapicker@xxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 29 Aug 2003 08:41:04 -0500
Mornin, bob at R.B.SERVICE lytle tx.
Check 4.7 250v cap primary side power supply.
Hope this helps
----- Original Message -----
From: <tvservice@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, August 28, 2003 8:32 AM
Subject: [TechAssist] Re: Symphonic SC3819 TV/VCR Combo-dead
> Try replacing the mode switch
> Robert
> tvservice@xxxxxxxxxxxxx
> H & H Electronics Inc
> Dallas, TX
> ----- Original Message -----
> From: "Mike Jensen" <soundpromikej@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, August 27, 2003 6:31 PM
> Subject: [TechAssist] Symphonic SC3819 TV/VCR Combo-dead
>
>
> > Hi Techs,
> > I have a Symphonic SC3819 TV/VCR combo causing me grief. Originally had
a
> shuts down after warm up symptom. After running on bench it developed a
dead
> symptom. I replaced all SMPS electrolytics and unit began working-test ran
> for two days-customer picked up and brought back two weeks later with dead
> symptom. Now the SMPS keeps trying to start up (front panel led flickers
as
> unit keeps trting to power up along with audible pops in the speaker).
Have
> replaced vertical output, all secondary electrolytics, switching
> transistor(2SC4508), rang switching transformer, replaced film caps in
> switch oscillator circuit. I'm working without a schematic; if anyone has
a
> chematic or any tips it would be greatly appreciated.
> > Mike Jensen
> > Sound Pro
> > Rapid City, SD
> > Fax:605-348-2252
> > soundpromikej@xxxxxxxxxxx
> >
>
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