[TechAssist] Re: Magnavox TS2746C221 chassis 27F8 verticle problem
- From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 22 May 2003 21:03:38 -0400
Ben,
I ask time and time again, place the model number in the subject line...
When people first go to the Tech assist archive for help, the subject line is
the firs thing they see.
From Tech Repair CD:
Magnavox\27F8\Failure of the Vertical Output IC* 7401\\\27F8\Replace IC 7401
with Service Code 9322 121 47687\There have been late
production changes to the 25/27F8 chassis\In the Vertical Output stage diode
6404 has been replaced by a 75 volt zener* Service Code
9331 180 00133.\ This was effective in the factory beginning September 1999\If
the Vertical Output IC 7401 is replaced as a service
repair* zener should be installed in place of diode at 6404 (grid C-8) units
built before September 99\\\\
Jeff Dougherty
Intrepid Video TV/VCR
263 S Front St
Steelton PA 17113
fax...717-564-4952
www.intrepid-video.com www.tech-repair.net
----- Original Message -----
From: "ben daniels" <benstv74820@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, May 22, 2003 1:53 PM
Subject: [TechAssist] Magnavox verticle problem
Mod: TS2746C221 chassis 27F8 cd manual # 7583 on cd
2003 #2. Set came with open resistor 3488 4.7 in horz.
deflection circuit that supplies vert. ic 50v. Replace
it and vert. ic 7401. Now unit will burn resistor 3409
1.5 ohm when turned on. 50v line being pulled down.
also pin 5 shows to be zero volts has 3.0v. If you
take the load off by unplugging yoke resistor stops
burning. Is the yoke possibly bad or what am I
missing? Thanks
=====
Randy Daniels
Ben's TV Repair
1703 No. Brdwy.
Ada, Okla. 74820
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