Dani wrote:
***CAUTION!!!!*** This is one of the JVC units that you have to unplug
the set to prevent the "booby trap" eeprom info failure from light
hitting
the sensor. Be very carefull here!
You can do the convergence surgery through the front panel of this
model without removing the back and setting off the booby trap.
Thanks for the info. I am working from the front.
Replace both STK convergence IC's, also check low value resistors.
...5, or 1.0 ohms approx. The booby trap is the optical sensor under
I have already checked the resistors and replaced the one STK
convergence IC that controls the red (Blue is controlled by the other
and green is controlled by a combination of the two).
a hole in the DVI metal box. Unplug power plug and wait a minute,
remove panel, unplug all wires to the DVI module and you can work
on it safely with power on.
Also you can work from front for convergence job only, if this model
uses long retangular convergence board (no screws, held in place with
snap hooks with metal box. you can get it out from front and reach
deep to release one of cables from holders and unplug from the small
stand up PCB.
Yes this is that model and the convergence board came out nicely but I
found no problems with it and after replacing the STK the same problem
is still present. Any other ideas? I really appreciate the help.
wrote:
I have a JVC 56" rear projection TV (model AV-56WP30). There is a
problem with the red projecting a wavy line near top of screen. I
checked all ouput resistors on the amp on the convergence board and
they were all fine. I tried switching the blue and red outputs from
the convergence board and the problem went to the blue so I was fairly
confident the problem was with the red convergence amp (STK392-110) and
I replaced it. The problem still exists. I took a picture of it and
stored he http://www.signaturefactory.com/dlip/tv1.jpg (note the
picture was taken with the blue and red outputs from the convergence
amp swapped so problem is on the blue). Anybody have any suggestions?