Soyo PWR0502204001 Power Supply Back-light Inverter Wire diagram
SOURCE: Insignia NS-32LCD Backlight or Inverter bad???
If you've done the flash light test, it could be the inverter board became defective but it could also be that the power supply does not provide the +24VDC to the back light inverter board.
If you could do the +24VDC test using a voltmeter then we can say for sure that the back light inverter board is defective.
Let me know if you need further assistance.
SOURCE: "Upgrade" of Backlight Panel
just replace what failed.
I replace the surface mount FETs on the inverters.
SOURCE: Soyo 32'' power supply is good checked it in another tv
Check caps and look for fuses there should be two.. Check continuity on transformers and if you find one that is open that's it. You can sometimes replace the transformer with one from another board. don't have to be same brand..
SOURCE: I have the same power supply problem on my
Hello,
You may be able to repair the board instead of buying a replacement board. If you are up to a little soldering it may save you a good bit of money for the repair. If you are interested just take a few pictures of the boards and email them to us at [email protected] We will check them out and give you some pointers on what to do. Most power supply issues with the blinking power lights are caused by blow capacitors on the power board. These are fairly easy to replace and the replacements are less than $20 usually. To get an idea what capacitors are and what will need to be do to repair you unit check out our pages at :http://www.ccl-la.com/blog/index.php/capacitors/ You may want to look over the repair guides for other units we have posted too. If you need parts we can also supply them for you. If you have any additional questions just contact us at: [email protected]
I hope this helps, If so please rate our solution.
CCL_Tech
Corporate Computer
www.ccl-la.com
SOURCE: Vizio SV470XVT1A has no backlight
The 24vdc is turn on by the signal from the main logic board, it is not always on, the standby 5vdc is always on. So yes it can be the power supply board is bad, but just to besure we need to find out if it is getting the turn on signal from the main board first.
You can have 24vdc at the inverter board and it will not light up the CCFL until it gets the signal from the main logic board to turn the lamps on (this is the STANDBY condition, the TV is on but the screen in not lit up util it see the video signal).
Send me good clean and clear pictures of the power supply board, [email protected], connectors of the Power supply, bottom side of the board, then I may be able to tell you which pin is a control input pin. Most people will just throwing parts in and hope that they one of the parts will fix the problem. Used Power supply module for this TV is over $100. http://www.google.com/products?rlz=1T4GGIH_enUS282US283&q=delta+DPS-379AP&um=1&ie=UTF-8&ei=USsxTKn3J6TonQfFlJGEBA&sa=X&oi=product_result_group&ct=title&resnum=4&ved=0CCsQrQQwAw
http://www.shopjimmy.com/catalogsearch/result/?q=Vizio+SV470XVT+
Testimonial: "Bud helped me fix my TV! It was only 1 1/2 years old. I was looking at a repair bill close to $300 - $500 and I fixed it with a $60 board! Thanks!!!"
197 views
Usually answered in minutes!
×