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MONITOR FAULT MY DIGIMATE DOES NOT SWITCH ON. POWER CORD IS OKAY

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  • Notapplicabl Nov 05, 2008

    Does anyone have an answer is dumb a!s they can supply? I don't really understand

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Check A/C voltage,fuse,maincap220/450v,bridge rectifire,reg.IC,FET.
check O/P sec. Voltages 5v,12v,65v,80v,150v Voltages may be variations on make.
Combo section 80vdc,60vdc
processor 5v,Vertical sec+12v,-12vdc
filament sup.6.3vA/C
Horizontal sec,H O/p 100v/120v
check dries
and pt

Posted on Oct 10, 2008

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Posted on Jan 02, 2017

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Don't forget to rate the advice!

http://www.aa1consulting.com

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Television stays in standby and won't switch on, just a high pitched sound


The TV is on protect mode.

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.

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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.

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