[TechAssist] Re: JVC AV-27920 (D422) Zener
- From: "Ed Gaidies" <teltek3@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 16 Apr 2004 12:52:46 -0400
Bob;
You are absolutely correct. All were bad. But alas...still flat lined. I
presume I have a bad new Vertical O/P IC. Although it calls for a 7832 I
replaced it with a 7830, which I think should be OK. But seems to me I had a
bad batch of LA7830, because I had a ?? on the bag. So I'll order the LA7832
and give it a fighting chance.
Thanks.
-Ed-
-Ed-
Tel-Tek Electronics
Ontario-Canada
teltek3@xxxxxxxxxxxx
----- Original Message -----
From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, April 16, 2004 12:09 PM
Subject: [TechAssist] Re: JVC AV-27920 (D422) Zener
> See the following:
>
> JVC Vertical Failure
>
> You most likely have all or most of the following components defective in
> that unit (these are the usual bad components with vertical IC failure in
> these JVCs) so you better check or replace them all:
>
> IC421 (part# LA7832)
> D422 (part# MTZJ75-T2) (75 volt zener)
> D541 (part# RGP10J-5025-T3)
> R541 (1.8 ohm, 2 watt)
> C424 (100mfd/35v)
> C425 (470mfd/35v)
>
> Bob Waterman, CET® #RI-28
> Master Technician License #9109
> Service Manager / Parts Manager
> Gemini Computer, TV, & Security Alarms
> (508)695-7302
> (508)695-7769 FAX
> geminitv@xxxxxxxxxxx
> geminitv@xxxxxxx
> www.geminicomputertvsecurityalarms.com
>
>
> ----- Original Message -----
> From: "Ed Gaidies" <teltek3@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, April 16, 2004 11:57 AM
> Subject: [TechAssist] JVC AV-27920 (D422) Zener
>
>
> > Anyone have a value for this zener from Pin 2 of vertical Output IC?
Diode
> > is designated D422.
> >
> > Thanks.
> >
> > -Ed-
> >
> >
> >
> > Tel-Tek Electronics
> > Ontario-Canada
> >
> > teltek3@xxxxxxxxxxxx
> >
> >
>
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