[TechAssist] Re: Zenith Model A50M91W1 Gray Screen?
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 11 Feb 2003 09:36:09 -0500
See if this set has resistors R3243 and R3244 on the sweep module (one is
82K and the other is 110K). Make sure you lift one side of each resistor for
an accurate reading.
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: "Scott" <scott@xxxxxxxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, February 11, 2003 9:08 AM
Subject: [TechAssist] Zenith Model A50M91W1 Gray Screen?
>
> Hello everyone,
>
> I am working on a Zenith model A50M91W1. The set was dead with a burning
> smell to it. I replaced:
>
> B+ Rect Diode 103-417-06
> H-out X-sistor 121-1167-01
> Flyback X-former A17-196-12REP (Tritronics)
> Bleeder Assy (HV Splitter) 95-4134-19/21-REP (Tritronics)
>
> The set will power up now, and has Audio, but The Picture is a gray screen
> (instead of blue, like with a vcr) with 3 or 4 quasi-overscan lines. I can
> turn the screen control down, (the screen will dim, but the 3 lines are
> always there, just dimmer.) or I can disconnect CRT boards, nothing seems
to
> have an effect. I have no docs on this unit, And can find nothing else
> obvious. Has anyone had this problem? Any help would be great. Thanx for
> your time.
>
>
> Scott Beebe
> Ohm Electronics Inc.
> 609 W. Clinton St.
> Ithaca NY 14850
> Voice: (607) 273-8406
> Fax: (607) 273-8743
> www.ohmelectronicsinc.com
>
>
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