[TechAssist] Re: JVC - TV - AV-27050 - Chassis A68 - Shutdown
- From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 17 Jun 2003 19:41:58 +0000
Have had 2 JVC's in shutdown or dead or wait a min. then shut down due to a
bad vertical IC (LA7832) as for your other question the LA7830 should let
you fire up the set but, the peak current rating is lower so it is use at
your own risk if the current surges it may go depending on max current. Have
used LA7830 for trial of the LA7832's but would rather use the LA7833 for a
long term sub if I don't have the 32's in stock but they all cross to the
same NTE number . Some of the vertical caps get funny in these sets and
cause retrace. The 2 sets that I rembemer 1 was a bad IC that woul shutdown
after a minute the other had blown a hole in the IC and taken out the 26v
supply off the FBT causing instant shutdown. C926 is also good to change out
on many models as it does or will cause problems.
Peter Oliver
Tucson Radio TV
From: "Fernand Goguen" <fgoguen@xxxxxxxxxxxxxxx>
Reply-To: techassist@xxxxxxxxxxxxx
To: <techassist@xxxxxxxxxxxxx>
Subject: [TechAssist] Re: JVC - TV - AV-27050 - Chassis A68 - Shutdown
Date: Tue, 17 Jun 2003 15:27:56 -0700
No. The HV would come on for a few seconds and then shut down. I never got
to see if it has a good raster. On some of those JVC's, I have also had to
replace the deflection yoke. If you have another one try and replace it .
FERNAND GOGUEN
GOGUEN TV SERVICE
----- Original Message -----
From: "David Lessard" <mrfixit@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, June 16, 2003 4:58 PM
Subject: [TechAssist] Re: JVC - TV - AV-27050 - Chassis A68 - Shutdown
> Fernand, This TV has full deflection, until shutdown occurs. Was this the
> case with the TV you were working on? Did you have a full screen before
the
> TV went into shutdown?
>
> David Lessard
> Alexandria Electronics
> Ontario-Canada
> mrfixit@xxxxxxxxxxx
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Fernand Goguen
> Sent: Monday, June 16, 2003 11:45 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: JVC - TV - AV-27050 - Chassis A68 - Shutdown
>
>
> I had one like that a few months ago and it turned out to be the vertical
> out IC LA7832 I think. Very common on JVC TV's.
> FERNAND GOGUEN
> GOGUEN TV SERVICE
> ----- Original Message -----
> From: "David Lessard" <mrfixit@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, June 16, 2003 4:32 PM
> Subject: [TechAssist] JVC - TV - AV-27050 - Chassis A68 - Shutdown
>
>
> > Customer brought this in from another shop. TV fires up for about 5
> seconds,
> > shuts down, then front LED blinks. +B is a steady 134V while the TV is
ON,
> > 107V during shutdown. I'm not very fimiliar with JVC TV products. No
> > schematic. Any pointers in the right direction would be greatly
> appreciated.
> >
> > David Lessard
> > Alexandria Electronics
> > Ontario-Canada
> > mrfixit@xxxxxxxxxxx
> >
> >
>
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