[TechAssist] Re: RCA Model BD20TF10, Chassis TVD809 TV/DVD combo
- From: "tvservice" <tvservice@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 19 May 2004 09:32:09 -0500
Art
maybe these tips will help
Combo TV/VCR
13TVRxxx, 19TVRxxx, T13xxx, T19408
TV TX808
Shutdown after power on @2 seconds
May have white retrace lines at top
Replace DF01 MUR160 ( diode across Vert IC IF01 pins 3-6 and possibly IF01
TA8403K
TX808H shutdown
found DL04 #248797 shorted, horiz damper circuit parrallel with DL07
can sub AU02 or ecg552/506
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
----- Original Message -----
From: "Art Bevilacqua" <abevilac@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, May 19, 2004 8:17 AM
Subject: [TechAssist] Re: RCA Model BD20TF10, Chassis TVD809 TV/DVD combo
> I had a few responses on this set from other people who were starting to =
> get
> them coming through the door, sometimes with the same or similar =
> symptoms.
> Has anyone actually had any luck figuring it out (three start attempts =
> and
> then quits, problem is not the vertical chip).
>
> Thanks
>
> Art Bevilacqua
> Essex Radio and TV
> 40 Main Street
> Essex, MA 01929
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Art Bevilacqua
> Sent: Wednesday, May 12, 2004 10:00 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] RCA Model BD20TF10, Chassis TVD809 TV/DVD combo
>
> This set tries to start three times and then quits. It looks like a =3D
> Philips
> chassis.
>
> A kind person provided a piece of a schematic showing the vertical =3D
> section
> and part of the power supply, along with the suggestion that the =3D
> vertical
> chip could be at fault.=3D20
>
> The power supply to the vertical chip looked ok, but we tried replacing =
> =3D
> it
> anyhow but that didn't help.
>
> Does anyone have a troubleshooting chart to help diagnose this set? It =
> =3D
> seems
> to be a protection shutdown problem, but the circuit looks pretty =3D
> "circular"
> so some guidance would speed things up. The B+ voltage is OK and the
> waveform at the Horiz output looks reasonably clean.
>
> Thanks,
>
> Art Bevilacqua
> Essex Radio & TV
> 40 Main Street
> Essex, MA 01929
>
>
>
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