NO POWER , TV WILL NOT TURN ON
Fault with the main power supply regulator 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.
SOURCE: Red Blinking Power Light Sharp Aquos
What do three blinks of the power light mean on my Sharp Aquos LC-C5262U? I cannot power up my display.
SOURCE: LC-37AF3X Sharp Aquos KCD TV
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
On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.
On Rear Projection : check lamp, lamp ballast, power board, and convergence.
On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.
SOURCE: the power light on my sharp aquos blinks green and
TV detected lamp error, problem could be either INVERTER UNIT or one of the lamps. Defective part has to be replaced, lamp error counter reset.
SOURCE: my Sharp Aquos TV will not turn on...just a green
The most common issue on these is the power supply boards. Bad capacitors on these boards are the issue and there are repair kits available if yur qualified for the repair other wise you can get new boards and swap them out. This is the most common issue in the business right now. Sharp sets are a little different in ther design on the power supplies but parts can be had and repairs can be made. You will need to balance the price for the repair vs a new set. Just Google TV power supply repair kits for Sharp Aquos and you will find repair kits and information on the power supplies.
If this was helpful a vote on the thumbs up would be greatly appreciated for the free advice.
149 views
Usually answered in minutes!
×