The problem first showed up and the green light would flash for more than 5 times before the second part of the power would kick in.
Check both power units for dry joints and caps going faulty. as this is most likely a problem. its because Plasma screens get so hot they cause these problems.
SOURCE: 26" Insignia LCD TV will not power up. Green Light Blinks 1x
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: 50 inch plasma insignia no power! no red light
hi..kindly check your power supply once.
It is a common problem.
thank u..
kindly rate my response..
SOURCE: Insignia LCD TV 32 inch will not come on
I received no replies to my request. I guest I stumped 2 million techs. I'll just buy a new TV with a 5 yr warranty. No thanks to joining your service, I can do bad all by myself.
SOURCE: NS-PDP50HD-09 Insignia 50
Since the power light is on the standby circuit is working fine and it is cutting up on powering the circuits, so either it could be a safety trigger or a failer. you will need to cross check by omission flow charting to find out if it is the Main power or the drive power.Check for dry joints or loose connection by tapping the main board to see any reaction to start up. good luck
SOURCE: i bought a 50 inch
Talk to them,return the tv u probally get like 20% off for a new replacement tv.U probally have to pay 80% of the new tv.Because u cause the tv LCD screen panel to be broken.The tv LCD screen panel is 90% important to the tv and it is limited in production by the tvs corporations.Tv with broken LCD screen panel only worth as a salvage tv for it electronic boards for parts,that it.
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Sorry for being vague. It's the second stage of powering on that doesn't always work correctly. When that works fine, the TV works. When it doesn't, there is no picture. It clicks at various times when the TV is off but plugged in, but does not come on by itself, which is what it may have seem like I said, Thank you.
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