[TechAssist] Re: Sony KV27V45 Smokes Vertical Outputs
- From: "Damon" <damon101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 13 Mar 2004 08:02:30 -0500
Ahhhhh, but did you check D562 and R562???? This TV uses + and - V
rails.....13Volts on both rails, comes from pin 5 and 7 of IHVT. Check
D562/R562 (0.47) and D561/R561 again. This op amp uses + and - V Drive from
IC 301 pins 13 and 14.
I'm skeptical about the yoke......
Damon Brunger
Telrad Electronic Services
Ft Wayne, IN 46815
----- Original Message -----
From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, March 12, 2004 8:14 PM
Subject: [TechAssist] Re: Sony KV27V45 Smokes Vertical Outputs
> Jeff,
>
> Pull the yoke and confirm it isn't shot. Did you ring the yoke? Did you
> monitor the secondary voltage feeding vertical IC? Check the vertical
> supply diode. I'm sure you've done all the above... :-)
>
> David Lessard
>
> Alexandria Electronics
> 50 Harrison Street
> Alexandria, Ontario
> K0C-1A0
>
> mr_fixit@xxxxxxxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Shoreline
> Electronics
> Sent: Friday, March 12, 2004 4:11 PM
> To: Tech Assist
> Subject: [TechAssist] Sony KV27V45 Smokes Vertical Outputs
>
>
> Make : Sony
> Model : KV27V45
> Problem : Smoked IC541 TDA8172 and open R561
>
> Replaced both and smoked them again!
>
> No shorted parts found.
>
> Hoping the Yoke isn't shot.
>
> Any thoughts before we continue?
>
> =================================
> Jeff Stielau
> Shoreline Electronics Repair
> 344 East Main Street
> Clinton,CT 06413
> (860)399-1861
> (860)664-3535 FAX
> jstielau@xxxxxxxx
> =================================
>
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