[TechAssist] Re: Philips / Magnavox TS2744C103 Chassis # 27B8 No Video, no OSD, Sound is OK.

  • From: "LeRoy Westlund" <llw@xxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Thu, 21 Nov 2002 12:09:07 -0700

Lynn,
Thanks for your response.
I have removed EEPROM (No change).
I grounded pin # 6 of EEPROM.(No change).
I replaced EEPROM 2 times.(No change).
CRT, and Yoke are OK.

Regards,
LLW

LeRoy Westlund
Westlund TV & Electronics          " It's such a pretty world
93 North Main                                          today !....
Centerfield, UT 84622-0087           Look at the Sunshine. "
Ph./Fax  435-528-3822                               :-)
mailto:LLW@xxxxxxxxxx

-----Original Message-----
From: Lynn C. Hedspeth, CET(r) <HedTV@xxxxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
Date: Thursday, November 21, 2002 11:35 AM
Subject: [TechAssist] Re: Philips / Magnavox TS2744C103 Chassis # 27B8 No
Video, no OSD, Sound is OK.


>
>Most likely replace EEPROM.
>Pull the old EEPROM and power back up.
>If EEPROM is defective the picture will be back up.
>Won't remember any of your setting, but you will be
>able to tell before you order.
>
>****************************************
>Lynn C. Hedspeth, CET(r) NC-407
>Hedspeth Enterprises Inc.
>3521 E. Hwy 27
>Lincolnton, NC  28092-7659
>704-735-3532
>413-828-0216 (fax)
>HedTV@xxxxxxxxxxxxx
>***************************************
>
>*********** REPLY SEPARATOR ***********
>
>On 11/21/02, at 10:04 AM, LeRoy Westlund wrote:
>
>>Hi members,
>>I have fixed 2 or 3 of these sets for the traditional Vertical problems.
>>This one is giving me nightmares.
>>
>>After replacing IC500, D409, and R420, my vertical seems to be OK,...but,
>>now I have a dark screen, with NO video or OSD. There is a white line=
> across
>>the top, about 1/2 inch thick. If I turn up my screen control, it goes to
>>gray raster, with retrace lines.
>>
>>I have found about 20 fixes for this problem. They all seem to be=
> Vertical,
>>or IC500 related. Also,...some have been fixed by replacing the Eprom.
>>I have rechecked my work in the vertical area.(NO lifted traces.).
>>I have replaced the Eprom (NO change), but can't access the service menu,
>>due to the NO OSD problem. I have replaced IC271.(problem remains).
>>The voltages on IC500 are:
>>Pin # 1 - .4 volts
>>          2 - +12.5
>>          3 -  -10.5
>>          4 -  -12.5
>>          5 -  .2
>>          6 - +13.5
>>          7 -  .4
>>I have also had to replace R58 (20 ohms), and IC 52 (TDA6106Q), on the CRT
>>board.(For shutdown problems).
>>In other words,...This set had multiple problems,...but, now,...there is
>>ONLY ONE problem left. Hate to junk it after spending so much time and=
> money
>>on it,...But,..it is now becoming a matter of principal. I will not
>>rest,...until I find, and fix this problem !
>>
>>Any help is appreciated,
>>LLW
>>
>> LeRoy Westlund
>>Westlund TV & Electronics          " It's such a pretty world
>>93 North Main                                          today !....
>>Centerfield, UT 84622-0087           Look at the Sunshine. "
>>Ph./Fax  435-528-3822                               :-)
>>mailto:LLW@xxxxxxxxxx
>>
>>
>>------------------------------------------
>>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
>>------------------------------------------
>>***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.techassist.net/forms/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.techassist.net/forms/change.html
------------------------------------------
***NEW*** Tips Added Instantly!!!***
Submit Repair Tips here: 
http://www.tech-assist.org/secure/tip/

Other related posts:

  1. Home
  2. techassist
  3. Archive
  4. 11-2002