20 Most Recent Sony KDL52W4100 Questions & Answers

Fault with its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

HelloPower regulator boards' control section has the problem. Power board is working, that is why you can see the standby light at the front pane,. But the main reguatoed output voltage is not get into the man board.You must aware in eelctronics and must have knowledge in folloing the circuit diagrams to recty this fault by yoursef at home. The more than these two is you must have patience, and a digital multimeter to measure the voltages t certain test points I points out. If you have all these, inform me by FixYa comment box. I'll give you advice what to do next. OK.

If the image displayed in two parts 'Horizontally', the fault is with horizontal phasing. If it is vertically splitted into two parts, the fault is is with vertical sysnchronisation. Both these faults are repairable.

To explain all about your problem post sill take so much time to type in all. More over, I cant insert any PDF files by this window, to show you the position of T'Con board inside your TV. Just visit this site. It is my blog. Purely meant to help to repair electronic equipments. electrohelp online.blogspot is the site address. Visit it. Google for it. To know you more, I've the service manual to your set in PDF format. Just visit this site first. You can get more details by it; about waht a T'Con board. what tools do you want to replace it. How can it be replaced and so on.If that site do not help you, contact me. OK?

HelloYou haven't specified anything about the picture condition of your Sony KDL52W4100. Will you please give me some more details about it. Do the vertical stripe moves acroos and washes out picture? Do you get well defined picture on the resr of the screen? As you know, this is an Email solution, and I've to get your Email address to post my solution. Sometimes, I may have to upload the service manual [schematic diagram]for your TV to get you more information about the fault, and the method for rectification. So, give me as much as details as you can. either give me your email iddress or send an Email to me at [email protected]. If I may have to upload the schematic diagram and service manual, I can't do it by this window, as this window does not allow me to uplaoad PDF files by it. I haven't placed my solution to your problem till yet. Get me the details I asked for, and help me to detect the actual fault with your tv. OK

I would try a new T-CON board first.

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.

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.

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/

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....

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://electronicshelponline.blogspot.com/ If blinks continue without any pause, the main board is faulty. 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.

Fault to the main power supply regulator section. 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://electro-medical.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.

three times red light blink mean DC Alert which is related to system in internally & some time sound ic problum

The most common defect that causes a 5 blink error on this model is the T-Con board. This board is now discontinued. You might be able to find one on Ebay or Amazon. If the T-con board does not fix the issue, then your panel is defective and your TV will need to be replaced.

Fault to the main power supply regulator section. Either it will be on a separate board, or on the part of its 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. Surf the site with patience. 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.

Back - light problem. 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/ In some models of LCD TVS; the backlight inverter and its T'Con board will be a part of the panel itself, and will be a built-in type inside the LCD panel. If so, they can't be replaced. In this case; a panel replacement is the only repair. For some other models, the backlight inverter section circuit will be a part of the main power supply regulator [SMPS]. To such sets, the power supply section circuit too should trouble shoot. Contact any service technician. The circuit will differ with models and versions.

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. Surf the site with patience. 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.

Check the tv is not against a wall and the air vents are not clogged with fluff. A flat screen tv expensive to repair.