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

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When the power come on it makes a Popping sound

Its like from the speekers Pop...Pop....Pop...Pop Like that I don't get any thing on the screen just Blank, it Just Pop...Pop.... Pop...Pop from the speekers

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Classic convergence driver failure for this unit. I call it "the thumps." Convergence drivers are two large chips inside (STK392-110), one of which has gone bad, but both need to be replaced. There are also several resistors around the drivers that have also sustained damage and need to be replaced. I recommend a television shop do the work for you because, unless you have good, solid soldering skills, the board can be rendered unusable by excessive heat/prying, etc., and the HD input can be **permanently disabled** by opening the back of the Television without properly preparing it.

Posted on Dec 29, 2008

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TV picture goes out after 10 minutes of viewing with popping sound


It can be a couple things. Something bad on the power board. Or the vertical output circuit. How long ago did you purchase the television. Your best course of action is to have it serviced.
If you need any information or other assistance let me know.
Thanks,
Lee

Jun 24, 2008 | Pioneer SD-582HD5 58" Rear Projection...

1 Answer

The "new device found" screen keeps popping up


Inspect for damaged pin on INPUT 1 socket. (left most of the three HDMI connectors)
A quick pull on the cable can damage the pins.
=== If you see mis-aligned pins then please power off the set before making corrective action. ===
============== Here's a textbook instruction from Mitsubishi
If the New Device Found Screen Displays No HDMI Control Option If the New Device Found screen shows no option for HDMI Control, one of these conditions applies: • HDMI Control is turned off in the menus of the new device Action: a. Highlight EXIT and press ENTER to close the New Device Found screen. b. Display the device's setup menus and enable the device's CEC capabilities. c. Wait for the TV's New Device Found screen to appear again. d. If the New Device Found screen does not appear, power off the device. Power on the device and wait for the New Device Found screen to display with the HDMI Control option.
Next time you see the NEW DEVICE FOUND screen pop up.
Toggle the CEC field (on the right side of the pop up) to OFF.
======

Jan 05, 2011 | Mitsubishi WD65737 65" DLP TV

1 Answer

Made popping sound, no picture but, sound ok. makes noise when trying to change channels.


I keep seeing this kind of problems with lcd and other flat screen tv's

In order for a lcd, plasma, or dlp screen to power up, it requires a quick start system, and it uses capacitors to achieve this
Those capacitors are fragile, and all it takes is a quick on off on again, and ...pop!

The capacitors are more than likely blown. If your t.v. is under warranty, I would take it to the place you bought it for repairs, as this can be an expensive repair job.
Depending on how many of the capacitors failed, if could cost almost as much as the tv itself to fix it.

Dec 14, 2010 | Mitsubishi WD-57733 57" HDTV

1 Answer

It went pop screen went black no power serge


If you heard a popping sound chances are your lamp went out on you.You can purchase a quality replacement lamp at discount-merchant.com

Apr 15, 2010 | Hitachi 50GX30B 50". Rear Projection...

2 Answers

No picture (black screen); making popping/crackling sound


there is a possibility that the semiconductor in power supply side damaged due to electrical surge. more likely the STR IC of Diodes.

Jun 01, 2009 | RCA P61960 61" Rear Projection Television

1 Answer

Toshiba 42 in 720 DLP TV MODEL HM66


You need to replace the lamp in this set. The "pop" you heard was the lamp popping.

Josh

Feb 24, 2008 | Toshiba 42HM66 42" Projection HDTV

1 Answer

Tv making popping sound


Turn down the volume and see if you still hear it,a loud pop or snap could be high voltage call your servicer in your area ASAP
while its under warranty and have him check the high voltage circuits for a intermittenting pop or snap.And have the model # ready!! Good Luck!

Dec 08, 2007 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Menu going crazy on the screen!


it sound as the menu button is staked, is a easy job for a tech, but dificult one for regular people, better get a tech and let him know that you know the problem is the menu button, thas gonna help with the price off the repair...good luck

Aug 06, 2006 | GE 46GW 948 46" Rear Projection Television

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