Sony KDL 32EX520, the back panel circuits are making chirping noise. I get an electric shock when I try to touch the screws or the TV in/out connectivity(USB, HSMI etc) sockets

https://www.youtube.com/watch?v=MQj2t4nNVYc

How to perform a power reset on a Sony television. ... Turn on the TV, then make sure that the indicator does not blink (which means the TV has no issues). Connect the disconnected devices one by one to the TV. If the indicator starts blinking after a certain device is connected, check the device for a issue.
https://www.sony.com.sg/electronics/support/articles/00153674

Hi my sate problem 3times red light blink and sum time is OK no problem 46bx450

Dear

normally its panel problem but some time in t con board is defective so please first change t con board if your problem not solve then replace panel
thanks
M Nasir

Tv might be fried.Or one of the circuit breakers Is popped. Maybe try a different electrical outlet.

It sounds that there is some loose contact in the connection wires inside it. Check all the flat cable connections for any loose contact. Re-seat them once, and check If you are not familiar with electronics, do not attempt to repair. Whether you suffer fatal electrical shock! Instead, contact the nearest service center.

The repair / replacement procedure is not extremely difficult if you have some basic electrical safety knowledge and some basic electronics / mechanical repair skills.

You will need to unplug the power cord from the unit, lay the TV screen side down on something soft and flat like a bed if necessary, and then remove the rear access panel or the entire rear cover as required in order to access the circuit boards inside.

When you remove the rear cover and access the circuit boards inside, just check the part number that is printed right on your circuit board and confirm that it exactly matches the one provided in the online listing or the replacement part you have. Also make sure that any part you order is labelled "TESTED WORKING" in the condition description. Any part with a condition description of "AS IS" is probably faulty itself as well.

Then unclip and remove the various electrical wire connectors leading to the power supply circuit board. Then remove the screws securing the circuit board to the TV frame and then remove the power supply circuit board. Be sure to avoid touching any large capacitors on the circuit board which can retain a nasty charge even after the unit is unplugged.

Then just screw in the new circuit board and connect all the wire bundles to their appropriate connectors on the new circuit board and then replace the rear cover. Then plug in the power cord and test.

I can't tell from the manual if this particular model has the smaller removable access panel on the back or not. If it does, you will see a few screws around a removeable center section of the rear plastic enclosure. Just remove these screws and the smaller plastic panel should unhook and come off allowing you to access the main circuit boards inside.

Otherwise you will have to remove the entire rear plastic enclosure. This is not exceptionally difficult, it just means you will have to remove many more screws. There will likely be over a dozen small philips head screws all around the perimeter of the rear enclosure holding it to the TV frame. Depending on your setup it may be easier to lay the screen side down on a soft flat surface like a bed to do this, but most times this is not necessary. Just be sure not to press too much on the LCD display panel itself or allow it to get scratched / gouged / bent / poked / etc.

Here is a link to a picture of what a generic LCD TV looks like with the rear panel removed revealing the major circuit boards inside:

http://techon.nikkeibp.co.jp/english/NEWS_EN/20090608/171435/?SS=imgview_e&FD=50422440&ad_q


And here is a link to an interesting Youtube video which shows an LCD TV being disassembled for spare parts harvesting:

http://www.youtube.com/watch?v=uCNEEuVhAWk&feature=related


Although unlike the video shows, you might want to use a manual hand screwdriver to remove the rear enclosure screws if you do this yourself for the first time.

Here also is a link to the SHOPJIMMY.COM parts supplier website which has all the available replacement parts (circuit boards) for your model of TV:

http://www.shopjimmy.com/sony-kdl-37xbr6


Just click on the appropriate part number under the POWER SUPPLY section to show a picture of the board as well as details and price. Unfortunately all those different power supply circuit boards appear to be currently OUT OF STOCK there, but you can probably find the one you need elsewhere online or on Ebay by searching for the exact part number listed on your particular circuit board.

Please comment back here to this page if you have any details to add, have any questions, have difficulty accessing the links, or just require further general assistance and I will respond as soon as I see it.

I hope that was helpful to you, good luck and take care.

Joe.

Ethernet connections between the tv and the computer into one signal frequencies are not compatible signals.Ur main home computer have internet service connection go through a wire or wire less Router for a internet signal through out the house.Connect the tv internet signal through the Router.Internet signal will work fine.

You remove the stand first (4 screws) and then other screws on the back.
http://s807.photobucket.com/albums/yy352/budm/SONY/Sony%20KDL-46WL140/

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.

Below is an image of rear side of your TV, Sony KDL-40W5500
Top right corner is marked there and possible cause of noise seems back light inverter board, there are high voltage going to CCFL inside LCD panel and seems high voltage leakage causing that buzzing/ fuzzing noise.

Replace back light inverter board upon voltage leakage confirmation.
Thanks.

Broken LCD panel does not affect circuit board behind that panel.
Make sure that other TV should be same model (KDL-40W4100) to swap boards / LCD panel because each model has its special designed boards and cannot be used in different model (if chassis is same, few boards can be used)