[TechAssist] Re: Zenith 20" TV,SJ7935W, 9-1118 main no OSD
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 21 May 2002 07:15:17 -0400
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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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ZENITH 9-1118
OSD Missing, Menu Functions Work OK, but Unable To See On Screen.
Ford's TV & Video Service
Horizontal Sync Pulse OK at Pin 21 of IC6000. Vertical Sync Pulse OK at Pin
22 of IC6000. Data Lines From IC6000 to Signal Processor,IC1200 Show No
Activity. Defective Microprocessor, IC6000 (221-685).
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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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ZENITH 9-1118
OSD Missing, Menu Functions Work OK, but Unable To See On Screen.
Ford's TV & Video Service
Horizontal Sync Pulse Missing at Pin 21 of IC6000. Found Shorted Diode
CR2250 (103-471A), Which Grounded out Pulse Necessary for Micro to Know
Where to Put OSD.
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Bob Waterman, CET®
Service Manager
Gemini Computer, TV, & Security Alarm Systems, Inc.
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
----- Original Message -----
From: "Phil Bader" <philbad@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, May 20, 2002 3:53 PM
Subject: [TechAssist] Zenith 20" TV,SJ7935W, 9-1118 main no OSD
>
> Zenith SJ7935W, 9-1118 main.This is unusual.The TV will turn on,change
> volume and ststions manually and on remote,but no OSD characters at
> all.I found three blue caps bad,but same symptom.What generates OSD on
> this panel? (uses IC6000 uP: 221-685, video IC1200,221-679, 14 pin
> IC6200 near tuner, 221-656)-Phil Bader
> --
> Philip Bader, Jan Phyl TV Inc.
> 3420 Recker Hwy,Winter Haven, Fl. 33880
> voice/fax: 863-299-8821
> Established 1976
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