Jvc tv model av-27f703

Indicates a power supply failure, needs a few filters replaced expect to pay $100-150 Julio [email protected]

check the horinzontal out transistors. call qualified personnel to fix.

your lamp is going bad you need to buy a new one

Page 40 on the PDF link below may help - Ask me if you need further assistance.
Thanks
Len
http://resources.jvc.com/Resources/00/00/99/51798Cien.pdf

The problem you describe is not really related to a timer function being set. The unit is in shutdown and the light is blinkng to let you know there is a problem.
There are several possible causes. the most common is a failure in the vertical deflection circuit due to a bad vertical IC and possibly a capacitor, zener diode and resistor.

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.

yes... i actually work at verizon the tv is to old for fios because fios is so advanced we run off ot 720 to 1080 depending on areas. what kind of box is it? is it the hd box or stb>

Refer to the trouble-shooting section of your manual. Usually, with this technology, the lights (Lamp/Temp) on these sets are also used at diagnosis/fault indicators... so, your manual should tell you what a flashing TIMER light represents. If the manual, doesn't provide this information, then ring JVC and ask one of their technicians.

Sounds like a bad main regulator IC.. Try putting a 100 watt light bulb across the main AC fuse, turn on the set and see if it will stay on longer. If it does, replace the main regulator iC. If it does not, then it could be almost anything in the sweep section of the set, and or in the regulation circuit of the power supply. Look for slightly swollen capacitors in the set. good Luck please do not forget to rate this thread.

probably some cold solder joints. take your time and check over whole circuit board and re-solder what looks bad.