[TechAssist] Re: Sony KV-32FS12. Chassis: BA-5. 2 blinks on led, set shutsdown instantly.

  • From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Fri, 28 Nov 2003 07:45:32 -0500

Check surface mount transistors Q506 and Q507 which are mounted on the botom
side of the "A" board, just forward of connector CN2008 on the left side of
the board near the tuner. In fact, if you remove them, the set may stay on
(as a test only). I am also uploading the manual to the members area.

Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
www.geminicomputertvsecurityalarms.com


----- Original Message ----- 
From: "Robinson Electronics" <RobinsonElectronics@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, November 26, 2003 4:34 PM
Subject: [TechAssist] Sony KV-32FS12. Chassis: BA-5. 2 blinks on led, set
shutsdown instantly.


> Any help appreciated on this.
> Originally found shorted flyback xfmer, replaced with new one.
> Still shutsdown.
> Changed these components:
> IC702 on crt board
> Q502  HOT
> Still shuts down, voltage measuments check good.
> Changed IC601 STRF reg. & vert. IC502.
> Still led blinks 2 times  - set shuts down.
> According to the codes "overcurrent shutdown" can't find out where though.
>
> Anyone have any clues, ideas on what may be the problem.
> Thanks.       David.
>
> Robinson Electronics
> 1075 Sweeten Creek Road
> Asheville, NC 28803
> Ph./Fax. 828  274-3787
> www.robelect.com
> Mailto: RobinsonElectronics@xxxxxxxxxxx
>
>
>
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