[TechAssist] Re: JVC AV-48WP30 dead, Thumps spkrs loudly

  • From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Wed, 02 Nov 2005 15:51:21 -0500

Larry,
Before you go crazy, do you have the 200 volt supply to these ICs (perhaps
one or more of the ICs were bad and opened the 200 volt supply - a cause and
effect failure. You may have cured the cause but the effect remains with the
200 volt line open)? Just a possibility!

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


----- Original Message ----- 
From: "Larry E" <videotech@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, November 02, 2005 3:46 PM
Subject: [TechAssist] Re: JVC AV-48WP30 dead, Thumps spkrs loudly


Well I replaced all 3 of the IC`s to no avail, same exact symptom except it
only thumps 6-8 times now instead
of 20-30 times before relay drops out and it goes silent, I`m going to get
some help and go pull the beast and order
the service "CD" manual, any more ideas gladly accepted, Larry E

Larry Eastman
American TV & Electronics
Crystal River, Fl. 34428
----- Original Message -----
From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, October 19, 2005 6:37 AM
Subject: [TechAssist] Re: JVC AV-48WP30 dead, Thumps spkrs loudly


> Larry,
> Check the CRT driver ICs on each of the CRT boards.
>
> 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
>
>
> ----- Original Message -----
> From: "Larry E" <videotech@xxxxxxxxxxxx>
> To: "tech-assist" <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, October 18, 2005 1:43 PM
> Subject: [TechAssist] JVC AV-48WP30 dead, Thumps spkrs loudly
>
>
> Hi Guys, I don`t see many JVC`s and don`t have the print for this
AV48WP30,
> went out this morning and
> as customer claimed on phone when you plug set in and turn on it makes a
> loud  thump thump in both speakers
> 20-30 times then relay clicks, the thump stops, and blue idiot light on
> front goes dim/bright, dim/bright, have to unplug set to start this same
> scenario over again. Never develops HV or audio,  Will order the service
> manual today, but would
> like to know if anyone has seen this before (should say "heard" this
before)
> tia, Larry E
>
> Larry Eastman
> American TV & Electronics
> Crystal River, Fl. 34428
>
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