[TechAssist] Re: Zenith 9-1457-1 (sms1943s) no vertical
- From: "bob" <woodman1@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 16 May 2002 15:58:26 -0400
Gaetan,
Check to see if module P/C board is brown in color. If its brown,
these boards develop hairline cracks from the fly to the front of board...
Ohm it out..
Hope this helps
Bob,
Bobs tv... Worcester, ma
main 508-853-1482
fax 508-853-1480
----- Original Message -----
From: Gaetan <techno1@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, May 16, 2002 3:17 PM
Subject: [TechAssist] Zenith 9-1457-1 (sms1943s) no vertical
> Got a 1994 Zenith sms1943s ch: 9-1457-1 (C12)
> with no vertical deflection ...sound ok , and line across middle of screen
.
> Power supply is ok .
> Have change LA7830 , everything look ok around (caps, res. coil)
> usual 2.2 ohm resistor is ok too .
> Check yoke ok (9 ohms on meter)
> Probably signal doesn't get to LA7830 ....or opened component .... and I
> don't have the schematic ....
> Have redone some soldering , checked all the board .
> What do I miss ??? need help
>
>
> Gaetan Bourgouin
> Techno Logik
> Terrebonne Que. Can.
> techno1@xxxxxxxxxxxx
> ***Did you know .....
> ... State with highest % of people who walk to work : Alaska. ...
>
>
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