Question about Insignia 19 in. Widescreen Flat-Panel LCD HDTV
When I push the power button it blinks several times, but won't turn on, then I push it again and green light comes but there's no picture or sound for a LONG time, 30min - 1 hr, is different every time. Then when I get finally image and sound, I try to change the chanel and the TV marks that the channel changed but it stays in the same one..... Then after a LONG time you are able to change the channels like nothing.
So I did the channel Auto Scan and now is worst, Now after all this long process the only channel I can see is channel 12, tha's the only one that it found and it's connected to the cable, So I put another TV there and connected that one to the cable and it works just fine.... Is there a solution, what can I do??
Insignia is Best Buy's store brand which is an LG tv. The power supply board needs to be tested to see if all the voltages it produces are present. If they are, then look at replacing the main board.
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Posted on Mar 20, 2017
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Posted on Jan 02, 2017
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
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
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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.
Posted on Apr 19, 2009
have you tried to change the audio settings to HDMI on tv? when u have HDMI hookd up u have to change the audio to HDMI also
Posted on May 31, 2009
In about 90% of the time the power supply is defective if the TV fails to power ON.
I repair these power supplies, if you need further assistance write to email@example.com
Posted on Jun 29, 2009
SOURCE: No digital channels
Posted on Aug 23, 2009
Testimonial: "Thanks. I resolved it by removing a splitter from being in line with the cable itself."
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