Top 20 Sony KDL-52XBR5 52 in. LCD HDTV Questions & Answers

The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size. Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

I take it the headphones are charged up and known to be in good working order? Are you using the 3.5mm headphone jack on the side of the TV or the white and red RCA jacks labeled AUDIO OUT (VAR/FIX)? If using the headphone jack the TV should shut off the internal speakers and output to the headphones. If using the mentioned RCA jacks you need to go into the audio options settings and set to Audio System. Also under audio settings, Audio Out, you can pick Fixed or Variable. If you opt for Fixed you will use the headphones to adjust the volume. If you opt for Variable you can control the headphone volume and muting using your TV remote control. Just make sure you have the headphone volume turned up adequately.

First make sure that your TV has an audio OUT. Most do not. If you do then you can plug into that but you will have to go into the menu on the TV under audio and turn on the external speaker feature. If you do not have an audio OUT then you will have to hook you speaker to the audio OUT of your home stereo system and hook the source output to the input of your stereo. Source being (dvd, cable box). In that case you need to turn off the internal speakers on the TV and just run it through your home stereo system.

Sounds like you have a bad LCD panel. Go to youtube and search Sony LCD tab problems, and you will find several videos showing you the problem and possible fixes!

Look in the menus for a setting labeled "Hall" etc that will cause background sound to be louder than people talking in the foreground etc--a lot of sets have this and the background being louder usually points to it being on.It can be in audio menu or another sub menu---experiment a bit to find it.

roughly $40-$80 depending on which vendor you choose to buy it from

Hello,
All Plasma and LCD TV have boards that control vertical and horizontal output to their respective areas. They are connected to the screen by ribbon cables. If one of these boards fails all together, has a failed chip, a bad connection, or a bad ground somewhere it will result in a black line in the area of that board. A bad ribbon cable connection on the bottom will result in a vertical black bar though the screen. Many times resetting the connection will fix it, if the ribbon cable has been nicked there could be a severed connection. They an sometimes be fixed, but it is a pain. An yes I have done it, but the bar is gone. The same will happen if the chip that outputs to that area opens. The connectors are the first place to look paying close attention to the cable, they are extremely delicate so great care must be taken if you decide to tinker with em, the usually have lift locks that release them, but it is very easy to wreck em.
Good luck in solving the problem......

You can look on;
http://www.shopjimmy.com

for your model number. The part may be a SAMSUNG part also.



http://www.shopjimmy.com/samsung-lj94-01944h-t-con-board.htm

Most of the issues like this are caused by the T-CON board. This board comes with the LCD panel and is usually not available to get separately. It is matched at the factory to work with the LCD panel it comes with. At lease that is the story the Sony Tech Department has told me.
Most likely yo will need to replace the LCD Panel to fix the set. For a 52" it would run around 1,800.00 with shipping and handling.
I hope this helps,
Skyassoc

> I suggest you do firmware update first. Go to http://esupport.sony.com/US/perl/swu-list.pl?mdl=KDL42V4100&LOC=3#div_pos_30 . If it doesn’t work. Replace the Main board

the panel is failing and will need to be replaced big buck hope it is under warranty

MAYBE LCD PANEL BAD

Check to see if you got all the screws, usually there are 4-6 screws holding the stand in the TV. The are usually all on the center bottom on the back. When the TV is on the floor, try lifting with two people, one on each side directly up evenly. The stand should stay on the floor as the TV is removed.

RE-check the audio amp on its own see if this happens with any input device...

Re-check the connections, and be sure your cable wires are all in good condition....and that you have the proper input/output ports correct.

The problem in most of the case are: 1. Interference from a defective fluorescent lamp at your room sending signals to the infrared receiver of the TV. 2. Defective infrared receiver itself that sending noisy control signals to the CPU. 3. Defective manual control withes it has leakage. 4. Water damaged control switch PC board.

Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electro-medical.blogspot.com/ http://homenol.blogspot.com/ http://electronicshelponline.blogspot.com/

Do a reset to this TV, and then check. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.

I would try a new T-CON board first.

Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board....