I have no power what so ever... no lights come on... nothing... I look for replacement power board but cannot seem to find the one for my model number... can you please help?
I have the exact same symptoms with the same model I'm working on now. So far, I have found two defective capacitors (680uf/35V) on the Backlight inverter board (p/n 6632L-0504A) and am still troubleshooting. If anyone has any more info on this set or even a scan of a service manual, I would appreciate it.
SOURCE: 42" Vizio - no picture no sound
If the TV goes in standby, then it is in protection mode.
Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
connected.
Try first leaving the TV power cord unplugged for some times, let say one hour or so.
The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.
1The
internal circuits are jammed because of electrostatic
charges accumulating on capacitors, or because of a wrong voltage read
by the main chip on your monitor controller board. this started the
protection circuit.
2 The protection circuit detected a wrong
voltage or abroken contact, identified an internal fault and kicked in
, starting the flashing light.
If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.
If you are in situation 2 , then there is an internal fault.
If under warranty contact the manufacturer ringing the number on the user manual
If you want to repair at your own expenses, just locate any good qualified repairer.
If you want to DIY you find parts here,
All: Appliance parts, electronics parts & more from PartStore.com
Encompass Parts Distribution
LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |
On LCD Pay
particular attention at inverter and power board, power board can be
inspected looking for bulged or leaking capacitors, then tested with a
multimeter. The inverter is more difficult to test , there is need to
read voltages, should be done by a tech. Also the LCD controller board can cause same problem
SOURCE: Vizio 42 in L42HDTV10A no power no lights no nothing
Yeah if you don't have any power at all, no lights or anything its the power supply.
SOURCE: Power Supply Board
http://www.encompassparts.com/products/?VIZ0500-0502-0102
This is the only place I founf that carries the
part.
SOURCE: vizio vw42l, the vizio light turns from ornage to
Does LCD screen backlight come on? If so proceed....
USE:CAUTION WHEN DOING THIS....
Try this if repairing yourself...find power supply, small board with no cover over it...check voltages on output pins/plug/connectors (white plugs) three in a row...
1 Plug has 24Volt supply..1 has 12Volt supply and 1 has 5Volt supply when read to ground (screw that holds board in) if you have these voltages it's a safe bet it's the main control board...I just replaced mine and it fixed a problem like yours.
SOURCE: I have a Vizio (Model #:LP2626, Model
Well,Vizparts show the picture of the power supply board wright?Take ur tv aparts,take out the power supply board and compair the power supply board on the picture to ur real actual board.Try Ebay.com another website u can tries.
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