Question about JVC AV-56WP74 56" Rear Projection HDTV-Ready Television

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Me again I am sorry, I just emailed you and asked you about the JVC. The screeen is also bowed at the top and bottom, not in the same place but the top is bowed more toward the left and the bottom is bowed towards the right. Thank you again. -Eric

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With the bow in it it's likely the convergence has failed... Where did you purchase the amps that you put in it? Did you use a good heat sink grease to mount them?? Did you really scrutinize the resistors in the feed and return circuits???
Bill

Posted on Apr 01, 2008

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The color is messed up. It's wavy at the top and bowed at the bottom corners.


your convergence ics are going bad. usually around 150 to 250 dollar repair.

Mar 22, 2011 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Bowing top and bottom temporary on cold TV


problem with unit is convergence--i would resolder convergence ics(they start with stk932-......)if that does not work replace them--if you need the exact part numbers email me at djstvrepair@comcast.net

Sep 15, 2009 | Pioneer SD-P50A3-K TV

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I have a JVC 48' widescreen tv approx. 7 - 8 yrs old. the picture is now extremely bad all of the colors seem to be out of wack and the picture bows inward toward the middle at the top and bows inward...


There's a miror or one like this might have a ''aluminium sheet'' miror.
Open the upper back cover to see what going on there, pretty sure something run out of place...

Sep 08, 2009 | Televison & Video

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Cheap Fix?


I will strongly advise you to replace the two STK392-120 as a pair. and this will cure your bowing picture problem. You may need to re-converge your set. best of luck.

Nov 05, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Thank you


Check pico fuses in power supply with ohmmeter......
Check current-limiting resistors near convergence IC's.......
Measure B+ supply voltages ( use manual)................

Apr 08, 2008 | JVC AV-65WP74 Rear Projection Television

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Thanks for the help


check the resistors right next to the ICs usually the 1.5ohm resistors will open when the ICs go out

Apr 08, 2008 | JVC AV-65WP74 Rear Projection Television

1 Answer

Convergence


B+ voltages to run the convergence circuit missing == check power supply for open fuse devices..........................T.

Apr 06, 2008 | JVC AV-65WP74 Rear Projection Television

1 Answer

Model #


Im sorry ive been so busy with so many different tvs i have forgotten which set i was asking about? I have one RCA ptk178LA that has bowing at top& bowing upward on bottom it acts like bad cap because sometimes it will all of a sudden snap into full correct picture, then after awhile it will go back to bowing.

Feb 21, 2008 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Problem with convergence


bad convergence ic's
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Jan 03, 2008 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

Bowing image top and bottom of screem


No im sorry there is nothing to do but replaceing the convergence IC

Oct 30, 2006 | Toshiba 55H70 55" Rear Projection...

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