Question about Vizio GV46L 46 in. LCD Television
I turned on the tv this morning and The tv just clicks contiously with out showing any picture or presenting any audio except for the clicking. The tv was working perfectly last night. I don't understand why this is happening. Please advise.
The TV is on protect mode.
This happens when an internal fault is detected.
When a fault is detected the protection circuit prevents the TV from starting , the clicking sound is the protection switch that keeps turning off the TV.
Sometimes protection is triggered by an incorrect voltage, or electrostatic charges accumulating on the TV PSU capacitors. In that case the problem is temporary, and will disappear leaving tv unplugged for some times. More often, when tv goes on protect there is an internal fault that must be fixed.
Try first leaving the TV power cord unplugged for some times, let say one hour or so.
Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.
If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.
The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.
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 , startingthe flashing light.
If you are in situation one, then theTV 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.
Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.
Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.
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.
Posted on Jul 12, 2009
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Posted on Jan 02, 2017
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