[TechAssist] Re: Philips/Magnavox Model #TS 2544 C121 Chassiss # 25B800 - 7562
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 16 Jan 2003 12:49:17 -0500
First,
Replace the vertical IC with part# 483520988531. Then replace D409 and D445
with part# 483513037094. R420 and R445 are the fuse resistors for these
diodes and are part# 483511657109. Most likely the vertical IC was bad which
caused the rest to fail, however, the yoke may be bad. See the following:
SYMPTOM: Open R420 or R445 with no apparent reason. These resistors act as
fuses in the plus and minus 13 volt supplies to the vertical output circuit.
CURE: Replace original .33 watt, 1 ohm MF with .5 watt, 1 ohm MO resistors.
Use ONLY 4835 116 57109.
TIP: If one of these resistors fail replace both with the above part.
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
----- Original Message -----
From: "Nova Service Center" <techassist@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, January 16, 2003 12:37 PM
Subject: [TechAssist] Philips/Magnavox Model #TS 2544 C121 Chassiss #
25B800 - 7562
> Hi Everyone
>
> This tv originally had vertical problem. Only the lower half of the screen
showing with a bright line in the middle. I resoldered pins of IC 500 (
vertical IC ) , Plugged it in , tv full screen appeared for a few seconds
and then R420 ( 1 ohm, 1W ) smoked out. Replaced it, then R445 started to
smoke. When I checked IC 500 for leak it did not show any. Any idea ?
>
> Thanks,
> Nova Service Center
> PO Box 2515
> Gaithersburg, MD 20886
> 240-632-2994
>
>
> ------------------------------------------
> Submit A Repair Tip For Everyone Here:
> http://www.tech-assist.org/secure/tip/main.html
> ------------------------------------------
> To REMOVE your email address, click here:
> http://www.tech-assist.org/unsubb.html
> To CHANGE your email address, click here:
> http://www.techassist.net/forms/change.html
>
>
------------------------------------------
Submit A Repair Tip For Everyone Here:
http://www.tech-assist.org/secure/tip/main.html
------------------------------------------
To REMOVE your email address, click here:
http://www.tech-assist.org/unsubb.html
To CHANGE your email address, click here:
http://www.techassist.net/forms/change.html
Other related posts:
