I have a Toshiba 46H84 that is only a couple of months over 2 years
old. It has been working just GREAT until about a week ago, that is.
With no warning whatsoever, the TV just turned off by itself. Just
before it went off the screen went to Blue and a light colored
yellow dot appeared in the middle. At this same time the "power"
button on the set startded blinking (red). I could not turn the set
off or on with the remote OR by pushing the button itself. I
unplugged the set, waited about five minutes. I then plugged it back
in, and turned it on by pushing the button on the set. It came on
just long enough to see the blue screen and a VERY faint picture
behind that blue. The dot had turned to black and then all of a
sudden the blue(and the picture) just vanished into the black dot
and the set clicked off. I have unplugged the set (as instructed by
Toshiba) and left it unplugged for up to five hours, just to plug it
in and the process starts all over.
Toshiba tells me they don't think it is the picture tube but have no
idea what it might be and OF COURSE, since the warranty is out for
two months now, they don't want to lend an opinion. This thing is
BIG and we live so far out in a rural area that the closest repair
is over 40 miles away and we can't afford to have a servive person
come that distance.
ANY SUGGESTIONS??? Would it be worth having fixed OR should we just
look into getting another set? What happened to Televisions lasting
over 20 years?? Are they all just "throw aways" now.
Frustrated in Paradise, Texas
Try to replug everything in the TV. Before you turn it on. make sure all plugs in the TV to the wall is plug in tight. When you turn your TV on hold the power button down to see if it resets
SOURCE: toshiba 46H84 tv turned off light blinking
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.
SOURCE: I turn the power buttin on....after about five
When was the projection lamp last change?If the tv,projection lamp inside the tv at last change was 1/ 1/2 or 2 years ago,and the tv is on,an in use at lest 4 or 5 hours day.The projection lamp life,it over should be change the projection lamp.Now tv turn on LED light "LAMP" indication light up or flashes?Yes,the projection is dead,hear alot of clicking too?The Ballast board it also dead,should be change too.The Ballast board,this board job,it help to ignite the projection lamp.
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blue screen of death. anyone can help. would make my day.
Toshiba 46H84 powers on with blue screen and then powers off leaving the red LED flashing.
The blue CRT appears to be shorting out, which shuts down the set. To confirm, perform the following steps.
1. Unplug the power cord from the TV.
2. Remove the speaker grille (lower front of the TV). There are two clips on each side and two more in the center that you have to pop off.
3. Remove the access panel. There are several hex screws holding in place.
4. Carefully plug the TV back in and power up. Do NOT touch anything inside due to high voltage. Watch for the blue CRT (the one to the right) to light up for a few seconds and then go out.
5. If this happened then unplug the TV set.
6. Carefully remove the printed circuit board (PCB) from the CRT. There are 3 clips holding the PCB in place.
7. Once the PCB is completely disconnected, again carefully plug in the TV power cord and power up. This time it should work, but with no blue.
8. Power down and unplug the power cord. Will need to replace either the CRT or the PCB or the power supply.
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