[TechAssist] Re: JVC AV-27920 (D422) Zener

Thanks Peter.   Good to know.

-Ed-
Tel-Tek Electronics
Ontario-Canada
teltek3@xxxxxxxxxxxx

----- Original Message ----- 
From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, April 18, 2004 11:37 AM
Subject: [TechAssist] Re: JVC AV-27920 (D422) Zener


> Just a side note they will also replace the LA7831 even though the chip
> looks completly diffrent, the active pins in the center are the same and
the
> pin spacing is the same, had a magnovox a year ago that was a giveme hotel
> special, mounting clip held it and a 7832 worked just fine in place of the
> 7831. (was out of LA7831 and sanyo semiconductor listed it as
discountinued
> which ment that finding an authentic part was decresing in probabbility)
>
> Peter Oliver
> Tucson Radio TV
>
> From: "Tel-Tek" <teltek3@xxxxxxxxxxxx>
> Reply-To: techassist@xxxxxxxxxxxxx
> To: <techassist@xxxxxxxxxxxxx>
> Subject: [TechAssist] Re: JVC AV-27920  (D422) Zener
> Date: Sun, 18 Apr 2004 08:43:18 -0400
>
> Thanks Al;
> I agree...But I had 2 bad ones in my batch, so it threw me for a loop.
> I re-ordered 5 from Global..(LA7833) to take the place of LA7830/32/33.
>
> -Ed-
> Tel-Tek Electronics
> Ontario-Canada
> teltek3@xxxxxxxxxxxx
>
> ----- Original Message -----
> From: "Al Gutz" <alg@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, April 17, 2004 11:31 PM
> Subject: [TechAssist] Re: JVC AV-27920 (D422) Zener
>
>
>  > Ed
>  >  I always use la7833 to replace the 7832, same specs but slightly
higher
>  > current rating. One less IC to have to stock. Also always use la7838 to
>  > replace 7837.
>  >
>  > Al G
>  > Al's TV-Electronics
>  > Pembroke Ont.
>  > Canada
>  >
>  > Ed Gaidies wrote:
>  > >
>  > > Nope...have none. I believe a 7830 works...am I wrong?
>  > >
>  > > -Ed-
>  > >
>  > > Tel-Tek Electronics
>  > > Ontario-Canada
>  > >
>  > > teltek3@xxxxxxxxxxxx
>  > > ----- Original Message -----
>  > > From: <gulftech@xxxxxxxx>
>  > > To: <techassist@xxxxxxxxxxxxx>
>  > > Sent: Friday, April 16, 2004 4:05 PM
>  > > Subject: [TechAssist] Re: JVC AV-27920 (D422) Zener
>  > >
>  > > > Ed,
>  > > >
>  > > > About a month ago, I was working on the same model.  I put (3)
LA7832
>  > > > chips in it.  Having no more, and seeing a tip in Winstips, I put
it
> a
>  > > > LA7833.  Worked fine.  Try it if you have one.
>  > > >
>  > > >
>  > > > Ken Smith
>  > > > Gulf Technical Services
>  > > > 3034 Gulf Breeze Parkway
>  > > > Gulf Breeze, FL  32563
>  > > > 850-934-8324 (Voice) 850-932-0819 (Fax)
>  > > >
>  > > >
>  > > > On Fri, 16 Apr 2004 12:52:46 -0400 "Ed Gaidies"
> <teltek3@xxxxxxxxxxxx>
>  > > > writes:
>  > > > > 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
>  > > > > > >
>  > > > > > >
>  > > > > >
>  > > > > >
>  > > > >
>  > >
>
 > -------------------------------------------------------------------------
>  > > > -
>  > > > > > ---
>  > > > > > > Lost Password:
>  > > > > > > http://www.tech-assist.org  and select "Login Problems?".
>  > > > > > > Email Archives:
>  > > > > > > http://www.freelists.org/archives/techassist/
>  > > > > > >
>  > > > > >
>  > > > > >
>  > > > > >
>  > > > > >
>  > > > >
>  > >
>
 > -------------------------------------------------------------------------
>  > > > -
>  > > > > ---
>  > > > > > Lost Password:
>  > > > > > http://www.tech-assist.org  and select "Login Problems?".
>  > > > > > Email Archives:
>  > > > > > http://www.freelists.org/archives/techassist/
>  > > > >
>  > > > >
>  > > > >
>  > >
>
 > -------------------------------------------------------------------------
>  > > > ----
>  > > > > Lost Password:
>  > > > > http://www.tech-assist.org  and select "Login Problems?".
>  > > > > Email Archives:
>  > > > > http://www.freelists.org/archives/techassist/
>  > > > >
>  > > >
>  > > >
>  > > > ________________________________________________________________
>  > > > The best thing to hit the Internet in years - Juno SpeedBand!
>  > > > Surf the Web up to FIVE TIMES FASTER!
>  > > > Only $14.95/ month - visit www.juno.com to sign up today!
>  > > >
>  > >
>  >
> --------------------------------------------------------------------------
>  > > ---
>  > > > Lost Password:
>  > > > http://www.tech-assist.org  and select "Login Problems?".
>  > > > Email Archives:
>  > > > http://www.freelists.org/archives/techassist/
>  > >
>  >
>  >
> --------------------------------------------------------------------------
> ---
>  > > Lost Password:
>  > > http://www.tech-assist.org  and select "Login Problems?".
>  > > Email Archives:
>  > > http://www.freelists.org/archives/techassist/
>  >
>  >
>  >
>  >
> --------------------------------------------------------------------------
> ---
>  > Lost Password:
>  > http://www.tech-assist.org  and select "Login Problems?".
>  > Email Archives:
>  > http://www.freelists.org/archives/techassist/
>  >
>
>
> --------------------------------------------------------------------------
---
> Lost Password:
> http://www.tech-assist.org  and select "Login Problems?".
> Email Archives:
> http://www.freelists.org/archives/techassist/
>
> _________________________________________________________________
> Watch LIVE baseball games on your computer with MLB.TV, included with MSN
> Premium!
>
http://join.msn.com/?page=features/mlb&pgmarket=en-us/go/onm00200439ave/direct/01/
>
>
> --------------------------------------------------------------------------
---
> Lost Password:
> http://www.tech-assist.org  and select "Login Problems?".
> Email Archives:
> http://www.freelists.org/archives/techassist/
>


-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org  and select "Login Problems?".
Email Archives:
http://www.freelists.org/archives/techassist/

Other related posts: