[TV] Re: Zenith 25A24T/Chassis 9-2066-04

["Dave" <dasls11@xxxxxxxxxxx>]

There is no 12 volt present. I cannot find the 9 and 15 volt that should be 
at CX3401 and CX3430.
Dave
----- Original Message ----- 
From: "Ming Yu" <yuming@xxxxxxxxxxxxx>
To: <tv@xxxxxxxxxxxxxxx>
Sent: Saturday, October 04, 2008 3:51 PM
Subject: [TV] Re: Zenith 25A24T/Chassis 9-2066-04


>
> Hi, Normally relay need 12V supply, If don't have schematic, please look 
> at the relay itself there is four pins, two for the connection of raw B+ 
> so that the raw B+ will supply to rectifier or regulator IC. the other two 
> pin is for control of this relay. one of it connected to 12V and other 
> connected to switch on/off transistor.  You need to find out the control 
> transistor to see is it shorted or the 12 V present or not. This is the 
> general tracing of circuit technique. At the time no any schematics need 
> to do so.
>
>
>
> Thank you
> Yu, Ming
> A1 Discount E&TV Service ( Lic: E79924 )
> 415-724-0005
> http://www.the-best-tv-guy.com
> 2229 San Jose Ave.,
> SF, CA 94112
> 10-04-08
>
>
>
>
>
>
>
> ----- Original Message ----
> From: Dave <dasls11@xxxxxxxxxxx>
> To: TV@xxxxxxxxxxxxxxx
> Sent: Saturday, October 4, 2008 3:35:10 PM
> Subject: [TV] Zenith 25A24T/Chassis 9-2066-04
>
>
> I have  a Zenith with the 9-2066-04 chassis that came in. I can here it 
> pop through the speakers when turned on and off with both the power switch 
> and remote, but it doesn't attempt to power up. I cannot find any thing 
> wrong in the power supply. I have a 140 VDC at the flyback and 18 Volt on 
> the board and 5 Volt at the controls but nothing at the relay. Does any 
> one have an idea?
> Dave's TV
> dasls@xxxxxxxxxxx
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