Question about JVC AV-27720 27" TV
The red on/timer button is blinking there is no picture and no sound
This is a general failure indicator and can be anything from a blown fuse to a bad power supply/vertical IC/lightning strike.
There are 2 fuses, check/replace both. if they blow again, check for physical damage to the vertical IC LA7832. If its cracked or had a hole in it , you are going to need to take it in for service.
Posted on Mar 12, 2009
tv wont turn on when i hit power it makes the clicking noise like it is going to turn on, but never does and the red timer light next to the power button just flashes.
only clicks and blinks
Posted on Aug 10, 2008
Page 40 on the PDF link below may help - Ask me if you need further assistance.
Posted on Feb 28, 2009
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.
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 May 22, 2009
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Posted on Jan 02, 2017
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