I have red and green ghosting on my 53UDX10B Hitachi rear projection
TV, and I cannot adjust the red convergence. I took off the back cover
and see a blackened resisitor on the JK07132-A convergence board. I've
read advice here to replace the amps and resistors to repair
convergence problems like I have. Do I need to discharge the caps
before removing this board? Or can I simply unplug the connectors to it
being careful where I touch otherwise?
Bueno, tiene problema de convergencia ,cambie los 2 chips o integrados , STK 392-110 y 2 resistencias de 1.5 ohmios 1/2 watt, y ves otra resistencia que quemadas o defectuosa cambiela y despues , ajuste la converjecia con el cotrlol remoto. buena suerte.!!!
Hola con respecto a los problemas de convergencia de los TV de proyecci?n, casi todos producen el mismo problema, ,cambie los 2 chips o integrados , STK 392-110 y 2 resistencias de 1.5 ohmios 1/2 watt, y ves otra resistencia que quemadas o defectuosa cambiela y despues , ajuste la converjecia con el cotrlol remoto.
los n?meros de partes, de los chips , integrados y resistencias , cambia, dependiendo de las marcas y modelos de cada TV. buena suerte. saludes y comenten.:
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Unplug TV from ac outlet for few hours, this will discharge caps in circuit boards and you can take out desired board after unplugging connectors.
Always Be Careful while doing repair in TV.
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Welcomejee,
Thanks, I had it unplugged over 24 hours. I guess that was long enough.
welcomejee,
Removing the board is another problem. It has 6 plastic snaps that hold
it in place, 3 on each side. Access to one snap on the far right is
blocked by a large cooling fin and what looks like a metal RF box and
by the side wall of the TV set, so I can't get my hand in there and a
screwdriver didn't work. I can release the other five snaps but not
this one, so the board won't come loose. The board is also held by a
plastic lip at the side farthest away from me so I can't pop it up on
the side I am able to release. Any ideas?
MY BLUE AND GREEN IS FINE BUT THE RED IS OUT OF LINE IN THE UPPER RIGHT HAND CORNER OF THE SCREEN....IT LOOKS LIKE A BIG WAVE
star823,
Try manual convergence alignment in service mode.
If you can't adjust red (I can't) then from what I've read here, the
convergence amps and some resistors need to be replaced. Time to call
in a tech if you can't DIY.
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