[TechAssist] Re: JVC AV48WP30 Convergence problem (FIXED)
- From: "Shaun" <satguy@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 12 Jun 2005 22:07:06 -0600
Leroy, I unplugged the AC first then removed the back and saw the
convergence in the front so I went up front and removed the front panel then
just took out the convergence board repaired it with the new STK392-108's. I
put it back in put on the front panel, put the back on plugged it in touched
up the convergence wrote the bill. I was like you the DVI plug was not
clearly marked so I don't know which pin is pin 1 either. I did keep the
room fairly dark and did not shine my flashlight directly into the inside of
the set. I can't answer your HDTV question either this one was hooked up to
a cable box that is not HDTV.
Shaun
Advanced Electronics
Fort Morgan, CO 80701
satguy@xxxxxxxxxxxxx
----- Original Message -----
From: "LeRoy Westlund" <llw@xxxxxxxxxx>
To: "TechAssist" <techassist@xxxxxxxxxxxxx>
Sent: Sunday, June 12, 2005 10:26 AM
Subject: [TechAssist] JVC AV48WP30 Convergence problem (FIXED)
> Shaun,
> I did the exact same repair on a AV48WP78 just last Friday. The STK392-180
> fixed my problem as well.
>
> I unplugged the three plugs on the DVI module, just to make sure no light
> hit it while working from the front access hole. It was not clear to me,
if
> the Eprom could be accidently erased with the power plug removed from the
AC
> outlet. Also, pins 1 & 2 on the DVI plug are not labeled, so I didn't dare
> to short out any of them.
>
> I think there needs to be more discussion on the dangers of the accidental
> erassing of the Eprom in the DVI module , because,... with problems other
> then convergence sure to come in the future, the set will sometimes need
to
> be run with the back cover removed.
>
> Will removing the plugs from the DVI module, effect the operation of the
TV
> with the back off,...or is it a better way to short the 2 pins 1 & 2 ?
And
> if so,....how do you know which pins to short when they are NOT labeled ?
> Count CW from the top left ?, or count CCW from the bottom right ? or what
> ? ). This is a very confussing issue IMO.
>
>
> A secondary question: Is this a HDTV, or does it need something connected
to
> the DVI jack, before it can be converted to HDTV ?
>
> Regards,
> LLW
>
> LeRoy Westlund
> Westlund TV & Electronics
> 97 North Main " I forgot,..to remember,..
> Centerfield, UT 84622-0087 to forget "
> Ph./Fax 435-528-3822
> mailto:LLW@xxxxxxxxxx
>
> -----Original Message-----
> From: Shaun <satguy@xxxxxxxxxxxxx>
> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> Date: Friday, June 10, 2005 7:18 PM
> Subject: [TechAssist] Re: JVC AV48WP30 Convergence problem (FIXED)
>
>
> >Replaced both STK392-110 with STK392-180 by removing the front panel not
> the
> >rear, the convergence module is right in the front and easy to remove.
Did
> a
> >little touch up with the remote and looked perfect. Thanks for all the
> input
> >especially Phil for the danger on removing the back panel with the power
> >plugged in.
> >
> >Shaun
> >
> >Advanced Electronics
> >224 West Riverview Ave.
> >Fort Morgan, CO 80701
> >----- Original Message -----
> >From: "Shaun" <satguy@xxxxxxxxxxxxx>
> >To: <techassist@xxxxxxxxxxxxx>
> >Sent: Monday, June 06, 2005 1:23 PM
> >Subject: [TechAssist] Re: JVC AV48WP30 Convergence problem
> >
> >
> >> Thanks Phil, good information to know. I ordered stk's and will go out
> and
> >> replace them.
> >>
> >> Shaun
> >>
> >> Advanced Electronics
> >> 224 West Riverview Ave.
> >> Fort Morgan, CO 80701
> >> ----- Original Message -----
> >> From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
> >> To: <techassist@xxxxxxxxxxxxx>
> >> Sent: Monday, June 06, 2005 12:48 PM
> >> Subject: [TechAssist] Re: JVC AV48WP30 Convergence problem
> >>
> >>
> >> > From my techrepairCD (www.tech-repair.net): SEE WARNING AT BOTTOM!
> >> > JVC~AV48WP30 AV48WP34~Distorted picture* poor
> >> > convergence~~~~Convergence/OSD PWB partially out of socket~~~~~~
> >> >
> >> > JVC~AV48WP30~small pic pulsating in size with no convergence
> correction*
> >> > collapsing vertically* black bars through pic when present.~~~16x9
HDTV
> >> > ready~C931 broken leed(s)~~~~~~
> >> >
> >> > JVC~AV48WP30~IMPORTANT NOTICE BEFORE WORKING ON THIS SET~~~~If you
> >> > remove the rear cover while the power cord is live you will destroy
all
> >> > DVI programming inside the DVI Digital Input Module!~The only way to
> get
> >> > this programming back into the unit is to send it to JVC that sends
it
> >> > to Japan~This module is mounted on the rear AV Jack Board and has a
> >> > light sensor built in. When light is detected the module does a
> complete
> >> > reset and erases the EEPROM~1. Prior to disassembly* unplug the power
> >> > cord from the AC outlet without fail. 2. Short the SB connector pin 1
> >> > and pin 2 of the Digital Input Module.~3. Before the rear panel is
> >> > inserted into the cabinet* release the short circuit on the SB
> >> > connector. 4. After releasing the short circuit between the SB
> >> > connector~do not turn the power on until the rear panel is inserted
> into
> >> > the cabinet. 5. Negligence in carrying out the above steps may cause
> the
> >> > inactivation of the TV~
> >> > Phil Bader
> >> >
> >> >
> >> > Philip Bader
> >> > Jan Phyl TV Inc. (estab. 1976)
> >> > 3420 Recker Hwy. Winter Haven, Fl. 33880
> >> > Fax (863) 299-8821
> >> > email: tjanphyl@xxxxxxxxxxxxxxx
> >> >
> >> >
> >> >
> >> > Shaun wrote:
> >> >
> >> > >Customer called me today service call is over 60 miles away, so I
> >thought
> >> I
> >> > >would ask if there is anyone that knows the numbers of the
convergence
> >> ic's
> >> > >or any other symptoms that cause the convergence to be off. She says
> >it's
> >> > >the upper left hand corner then it goes down to about the middle of
> the
> >> > >screen.
> >> > >
> >> > >Shaun
> >> > >
> >> > >Advanced Electronics
> >> > >224 West Riverview Ave.
> >> > >Fort Morgan, CO 80701
> >> > >
> >> >
> >>
>
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