[TechAssist] Re: Panasonic TV Model#CT27S18S,Chassis#AREDP224 No power up
- From: "LeRoy Westlund" <llw@xxxxxxxxxx>
- To: "TechAssist" <techassist@xxxxxxxxxxxxx>
- Date: Fri, 3 May 2002 13:48:33 -0600
Ron,
I'm trying to go from memory,....but,......
If it has an STR58041A for the reg. IC,....make sure you use a factory
replacement.
Also use a OEM part for the H.O.T.
Also check the resistor & elect.cap. off pin # 1 of the reg. IC (the
feedback
ckt.). This resistor sometimes decreases in value from 180 ohms to as low as
12 ohms. (don't trust the color code, cause it will fade, from being
overheated. Also check the soldering on the Horz driver Txfmr., and look for
a 1ufd @ 160-250 VDC elect. cap in the pri. ckt. of the horz driver txfmr.
Hope this helps, even though it might NOT apply to your model.
LLW
LeRoy Westlund
Westlund TV & Electronics " I've enjoyed
93 North Main as much of this,
Centerfield, UT 84622-0087 as I can stand "
Ph./Fax 435-528-3822
mailto:LLW@xxxxxxxxxx
-----Original Message-----
From: Ron Price <ron_tcshack@xxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>;
pro501@xxxxxxxxxxxxx <pro501@xxxxxxxxxxxxx>; premtech@xxxxxxxxxxxxxx
<premtech@xxxxxxxxxxxxxx>
Date: Friday, May 03, 2002 1:24 PM
Subject: [TechAssist] Panasonic TV Model#CT27S18S,Chassis#AREDP224 No power
up
> This Panasonic TV Model# CT27S18S with Chassis# AREDP224 came in with the
>customer saying it would not power up. (wouldn't turn on) Upon inspection,
>(took cover off and checked inside) I found C818 (220uf @ 200v) and C 824
>(2200uf @ 25v out of round and the covering split from the case..Upon
>furtherchecking I found the HOT and the regulator to be bad..(checked the
>hotwith meter and the regulator had a small hole in the side).Replaced the
>HOT,Regulator,and both caps..Fired up (turned on) the set and now I am
>getting a high pitched sound in and around T601 and Q753. Not sure what
>voltages I am to have in that area and have no print (service manual) for
>this set..If I have not posted this properly or no one can understand what
I
>am trying to say, I appoligize, I am trying to do this in the proper way..I
>would appreciate any help with this set...Thanks
>
>
>Ronald J. Price Service Tech. Terry's Computer Shack 719 Washington P. O.
>Box655 Mendota, Il. 61342 Phone: 815-539-3210 Fax: 815-539-7521 Email:
>ron_tcshack@xxxxxxxxxxx
>
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