[TechAssist] Re: T/A Sony KV-27S66 shutdown at turnon
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 11 Jun 2003 11:10:08 -0400
I would definitely suspect the flyback as I have seen them fail. Before I
ordered one, I would suggest looking at the horizontal drive signal at the
collector of the output to see if it is clean and also monitor the B+ as it
tries to start to see if it momentarily gets pulled down. Note: This
waveform may only be there for a brief instant or two.
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: "Glenn Larkman" <mail@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, June 11, 2003 10:56 AM
Subject: [TechAssist] T/A Sony KV-27S66 shutdown at turnon
> Hi All,
>
> I have the above model Sony that uses a BA-4D chassis and uses FBT #
> 8-598-998-00 that tries to start and cant.
> I've changed the audio and vertical output IC's and my Sencore rings the
> flyback as OK although I'm not so sure. Power supply is good at 135V B+.
>
> I want to know if anyone has a history of this FBT being a problem before
I
> get one since this is the first time I've seen this version of this
chassis
> with this particular FBT.
> TIA
>
>
> Glenn Larkman
> Audiotech
> 256 Nth Hwy 101
> ENCINITAS CA 92024
> 760 944 9048
> FAX 944 0345
> mail to"mail@xxxxxxxxxxxxx"
> "www.audiotech.net"
>
>
>
>
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