[TechAssist] Re: Sansui TV/VCR COM311ADA, No power
- From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 21 Oct 2003 15:48:34 -0500
Maybe this will help, then again, maybe it won't:
After replacing the switched mode regulator IC501, STR-G6623, found only
about 3.5 volts on pin 4 where there should be 15.8 volts. This was caused
by reverse bias leakage of about 2.5K in diode D506. Replaced D506, AU02A or
NTE552 for the final fix.
**************************************************
Jim Myers
Since 1972
Telrad Electronic Services Co.
Fort Wayne, IN 46815
*************************************************
----- Original Message -----
From: "Bob@Bobs tv" <woodman1@xxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, October 21, 2003 11:00 AM
Subject: [TechAssist] Re: Sansui TV/VCR COM311ADA, No power
Ken,
I remember a 9"Sansui that came in dead..There was a T0220
regulator..the 3 traces went to the regulator then straight thru, when they
drilled the board the holes were the width of the traces. We hard wired..
sorry that's all I remember, and don't know if this applies..
Bob,
Bobs TV Worcester, ma
woodman1@xxxxxxxx
Main 508-853-1482
Fax 508-853-1480
----- Original Message -----
From: "J Silverman" <greentron@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, October 17, 2003 4:41 PM
Subject: [TechAssist] Re: Sansui TV/VCR COM311ADA, No power
> Have one with same symptoms and have not got aywhere with it. T/A had
> several suggestions to try in this order: Check with DC power; if same,
> check voltages at CP810 ( they were just what the manual said); if OK,
check
> x-ray circuit; if OK check FBT. Still working on it.
> Jerry Silverman
> Greentron Inc
> 4 Newland Ave
> Greenville SC 29609
> 864 232 3889
> Fax 271 2080
> mailto:greentron@xxxxxxx
> ----- Original Message -----
> From: <gulftech@xxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, October 17, 2003 1:22 PM
> Subject: [TechAssist] Sansui TV/VCR COM311ADA, No power
>
>
> > Techs,
> >
> > This AC/DC combo has no power. On AC, can see the needle on my variac
> > pulse repeatedly trying to start.
> >
> > Customer not willing to put much money in it. I've already spent more
> > time than I should have. Can find no shorts or bad caps. Hoping for a
> > tip for something I missed. Have no print.
> >
> > Thanks,
> >
> >
> > Ken Smith
> > Gulf Technical Services
> > 3034 Gulf Breeze Parkway
> > Gulf Breeze, FL 32563
> > 850-934-8324 (Voice) 850-932-0819 (Fax)
> >
> >
> > ________________________________________________________________
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>
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