When turning the TV on, there is a slight cracking/static sound that occurs. The RED light somes on, then in about 5 secs, the green light adjacent to hit, will flash for 3 secs (simultaneous to the red being continuously on) and then both will shut off with the sound of the TV. This will be automatic without prompt of the remote. After that, the monitor will automatically turn itself "on" (with no picture) with only the sound being displayed.
This will continuw 3,4 maybe 5 times than both green light and red light will both flash with NO sound nor picture.
What is the problem with the monitor? What do I/should I do???
I have a Toshiba Model 52HM84 52" TV
It is possible one of the internal fuses blew out. It could be a bad horizontal outut transistor. It could be a bad secondary of the power supply went bad And many other things. If it's just a fuse, it won't cost much, but a lot of them do not look like you would expect a fuse to look like.It might be a little yellow, green, or gray rectangualar box shaped part. :D
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If the model indicated here is right It could be in the power supply and this model sometimes fails where light just blinks--that could be also convergence issue--in this model there is a way to disconnect the power going to the convergence board to see if set will then turn on.
helloFive blinks - AKB circuit (automatic kine bias), the
timer/standby indicator blinks for about 30 seconds then goes to the
self-diagnosis function. Something is wrong with the video. Check video
out, Q705, 732, 761 and other components on the C board, also check
Q218, 219, 220 on the A board. In addition, unit could be in IK
blanking, try turning up screen slightly.
Does it make a slight popping or cracking sound ? If so remove the back cover and see if the flyback transformer shows any sign of burning or arcing. It is located on the far rt. hand rear side with a red wire comming out of the top and a black one behind and lower than the red one.
TV's use high voltage to generate the stream of electrons traveling
across the picture tube hitting the screen and lighting it up (thus the
name Cathode Ray Tube). It takes about 25,000 volts to do
this. In normal air, it takes about 1000 volts to jump an inch of
air, so the high voltage transformer needs to have good
insulation. It generates the voltage through a technique of
charging the transformer's magnetic field with a low voltage of about
140 volts then letting it go where upon it flys back out the high
voltage side at much high levels (Thus the common name
flyback). A most common failure in a CRT type TV is for the
insulation to crack in this transformer which is a unique component for
each model of TV and leak out the current overstressing the circuit
driving it. You can liken it to a little bolt of lightning
getting loose in the circuit and has the same sound on a smaller scale.
It would be well to replace your flyback transformer before it gets
worse and blows up something else as well. Best done by a
professional used to handling high voltage. The picture tube can
retain voltage even when the TV is unplugged for some time, and
replacing the anode lead (the big red one) can be dangerous.
Hope Ya Fix It!