[TechAssist] Re: Sony TV, KV27TS27, Regulation trouble

From: tvdoctors@xxxxxxxxxxxxx
To: techassist@xxxxxxxxxxxxx
Date: 04 Oct 2001 12:28:30 -0800

Check horiz. drive transformer and any caps and resistors around the 
transformer.


> ** Original Subject: [TechAssist] Sony TV, KV27TS27, Regulation trouble
> ** Original Sender: gulftech@xxxxxxxx
> ** Original Date: Thu,  4 Oct 2001 14:16:47 -0500 (EST)

> ** Original Message follows... 

>
> Friends,
> 
> Set came in dead.  Q601 & Q602 shorted, fuse F602 and R647 (2.2 ohms)
> open.
> 
> Replaced all listed parts and brought up on variac.  Picture folded in
> middle and pulled in on sides.  The regs (Q601/Q602) run very hot
> quickly.  Shut it down.  Q613 & D622 are good.  Tried another set of regs
> (2SC4664) with no change in symptom.
> 
> What am I missing?  This is the second time I have seen this.  Didn't fix
> the first one.
> 
> 
> Ken Smith
> Gulf Technical Services
> 3034 Gulf Breeze Parkway
> Gulf Breeze, FL  32561
> 850-934-8324 (Voice) 850-932-0819 (Fax)
> ________________________________________________________________
> GET INTERNET ACCESS FROM JUNO!
> Juno offers FREE or PREMIUM Internet access for less!
> Join Juno today!  For your FREE software, visit:
> http://dl.www.juno.com/get/web/.
> Help make your TechAssist online repair tips 
> database better!  Submit your fixes here: 
> http://www.circuitwork.com/techassist/tip/#tips
> To unsubscribe write to:
> techassist-request@xxxxxxxxxxxxx 
> with  unsubscribe  in the subject line.


>** --------- End Original Message ----------- **

> 


Download The Grinch Browser at http://www.meanone.com/grinchBrowser.html

Help make your TechAssist online repair tips 
database better!  Submit your fixes here: 
http://www.circuitwork.com/techassist/tip/#tips
To unsubscribe write to:
techassist-request@xxxxxxxxxxxxx 
with  unsubscribe  in the subject line.

[TechAssist] Re: Sony TV, KV27TS27, Regulation trouble

Other related posts: