[TechAssist] Re: toshiba cx21449 model /chassis TAC8905/ loss of video
- From: "Perry Hill Electronics Service" <phes1@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 22 May 2002 19:47:23 -0700
Confirm that you have vertical deflection. I'll bet you dont.
Mark Wentowski
Perry Hill Electronics Service
3836 Harrison Rd
Montgomery, AL 36109
Voice: (334) 279-5622
Fax: (334) 273-9050
Email: phes1@xxxxxxxxxxxxx
----- Original Message -----
From: wilfred blakey <wblakey@xxxxxxxxxxxxxxxx>
To: tech assist <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, May 22, 2002 2:35 PM
Subject: [TechAssist] toshiba cx21449 model /chassis TAC8905/ loss of
video
> I changed deflection IC501 because the TV was dead /no horizontal
drive. After I changed the IC I find there is no brightness on the
screen. All of the transistors around the IC (Q141,Q201,Q290) have wrong
biasing and I cannot figure out what is causing the problem. I have
tested most of the components in the area and cannot seem to find the
problem. The signals going into Q201 especially are low. The IC I
installed is a Toshiba original TA8680N so I do not have to deal with
substandard parts that do not match. I would appreciate any help I can
get.
> Wilf Blakey/Blakey TV,Kirkland Lake,Ont
> wblakey@xxxxxxxxxxxxxxxx
>
>
> ------------------------------------------
> To REMOVE your email address, click here:
> http://www.tech-assist.org/unsubb.html
> To CHANGE your email address, click here:
> http://www.tech-assist.org/change.html
> ------------------------------------------
> ***NEW*** Tips Added Instantly!!!***
> Submit Repair Tips here:
> http://www.tech-assist.org/secure/tip/
>
------------------------------------------
To REMOVE your email address, click here:
http://www.tech-assist.org/unsubb.html
To CHANGE your email address, click here:
http://www.tech-assist.org/change.html
------------------------------------------
***NEW*** Tips Added Instantly!!!***
Submit Repair Tips here:
http://www.tech-assist.org/secure/tip/
Other related posts:
