Question about JVC HD-52G786 52" Rear Projection HDTV

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My HDMI input has failed and needs to be replaced. Diagnostics have been done by two different techs.  All other Inputs and Outputs work fine. I think, as an engineer myself, I can replace the board myself.  The service place wants $700.00 to fix it.  Isn't it just a card / board that I can change out? Also, I can't find a part number online.

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  • Anonymous Nov 18, 2008

    Worked for me! I was getting no signal from my PS3 through HDMI, resetting in Service mode, now I can see in 1080i. Thanks!

  • wherewithal1 Dec 24, 2008

    I have never been able to get my HDMI connect to work, ever. Settled for composite cables instead...over last 1 1/2 years. I recently bought a blu-ray player w/ HDMI cable and have experienced the same problem. I am connecting directly to HDMI inputs, going to digital mode and keep getting a green screen. Am I just setting this up wrong or do I need to reset/ or get a technician? Thanks.

  • Anonymous Mar 15, 2014

    i have a lg 55" led tv (55le5300) which none of the 4 hdmi inputs are working. I supose to change the main board, but now i have doubts if i have to change the main board or de power board. which of them should i change and where can i find it? thanks



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DId the technicians try to reset the HDMI.
The HDMI module will need to be reset after service
. Enter the service
menu and select “2”, the Self Check option. Power off the unit using the
Remote. Allow the unit to complete its Cool Down cycle, then unplug the AC
Power. Reconnect the AC Power and power on unit. Confirm HDMI input
sorry the font change on me. this unit has compatbilty issue with some hdmi sorces. there is also a safety interlock sensor if it see extra light it thinks your trying to do something wrong and locks up hdmi.
WARNING. Service mode can result in further damage to set. Care should be taken not to mess with settings unless you know what they are.
1) Set to "0 minutes" using the [SLEEP TIMER] key.
(2) Press the [VIDEO STATUS] key and [DISPLAY] key
simultaneously, then enter the SERVICE MODE.
(3) When the Main Menu is displayed, press [2] key to enter
the self check mode.
(4) Turn off the power by pressing the [POWER] key on the
remote control

Posted on Nov 17, 2008


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