[TechAssist] Re: Zenith TV
- From: "John at Main TV" <maintv2004@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 4 Feb 2005 10:09:50 -0700
It would be easier to look this up if you posted the chassis number or the
module number. This is a C1 chassis. The relay is for degaussing only, not
the on/off. A similar chassis can be found in Sams 2809-2. If the picture
and sound both stay on when the set is off I would suspect Q3402 to be
shorted. If this transistor is shorted, the degauss relay would be energized
all the time (this is not causing the problem but is an indication of it).
0 and +2.8v on upc pin 26 are the correct voltages. The channel display is
controlled by other pins of the upc. HTH, John.
John Mielke
Main TV
636 main St.
Longmont, Co
phone 303 776 6955
fax 303 776 0792
maintv2004@xxxxxxxxxxx
----- Original Message -----
From: "KENNETH BARNES" <KENNYB928@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, February 04, 2005 9:35 AM
Subject: [TechAssist] Zenith TV
> Model ss1311w4. Can't turn set off, channel indicator light goes off, but
set stays on. When you turn on-off switch off set stays on. Changed relay,
this usually fixes this problem. Check pin 26 on micro. reads 0 when set is
off and 2.8V when set is on. No schematic, no sams listed. Any help here?
TIA
>
>
>
> Kenny Barnes TV
> KENNYB928@xxxxxxx
> 928 South Marshall St.
> Boone, Ia. 50036
>
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