[TechAssist] Re: Sony KV27FS12 - shuts down
- From: "KENNETH BARNES" <KENNYB928@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 10 May 2005 21:56:46 -0500
Damon: I replaced IC301 - have pix and all functions. Now I have way too
much width. Called up service adjustment mode. Secured HSIZ (Horz size);
cannot adj. Can't see all the service writing. Missing the s on service
writing. Checked Q503 & Q504 in the pincushion circuit. They are O.K. Also
picture bowed in the middle even though I have a full pix. Any suggestions?
Thanks for your input. Kenny
----- Original Message -----
From: Damon<mailto:damon101@xxxxxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx<mailto:techassist@xxxxxxxxxxxxx>
Sent: Monday, May 09, 2005 7:17 AM
Subject: [TechAssist] Re: Sony KV27FS12 - shuts down
You missed the vertical circuit completely. Most of the time the vertical
drive signal dies and you have to replace the jungle, other times it's the
V+ and V- supplies that come from the IHVT.
Damon Brunger
Telrad Electronics
Fort Wayne IN
----- Original Message -----
From: "KENNETH BARNES" <KENNYB928@xxxxxxx<mailto:KENNYB928@xxxxxxx>>
To: "techassist" <techassist@xxxxxxxxxxxxx<mailto:techassist@xxxxxxxxxxxxx>>
Sent: Sunday, May 08, 2005 10:11 PM
Subject: [TechAssist] Re: Sony KV27FS12 - shuts down
> Sony KV27FS12 - still have a problem. 4 blinks. Set came into shop dead.
Replaced HOT. It then blew two HOT. Changed flyback (bad) and installed
new flyback, another HOT and changed vert IC502. Hi voltage is normal. B+
on HOT is 134V. All voltages on IC502 are normal. When you plug TV into AC
it comes on for 6 - 8 seconds then shuts down - cannot turn off TV with
power button. Once it shuts down, you can make it come on by pushing power
button, then it shuts down in 6 to 8 seconds. By turning on enough times,
you get a horz line in pix, slightly above center of pix.
> Also D501 and D504 are ok. D620 & D616 are OK. Ring yoke is ok.
Changed IC702. 200V source is normal.
> What have I missed? Appreciate any help with this one.
> Kenny Barnes TV
> 928 S. Marshall St.
> Boone IA 50036
> Ph. 515 432 5250
> Email:
KENNYB928@xxxxxxx<mailto:KENNYB928@xxxxxxx<mailto:KENNYB928@xxxxxxx<mailto:KENNYB928@xxxxxxx>>
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