You have a bad soldering - when it heats up it loses contact and the tv just shuts down. Take all the boards out and check every single soldering - move the soldered part with your finger to view the bad one more clearly - and redo them. Then put the boards back in and check every single connector for play and crimp them if you have doubts.
Test the caps on your power board and possibly the y sus board as well. There is the normal common areas with the mitsubish tvs
Ok.. Please perform am error code operational check. Unplug it from the power outlet, plug it back in , press and hold the power button for 5 seconds. the led will blink x number of times a short pause, followed by another series of blinks. please let me know how many times it blinks before and after the pause and let me know so that I can tell you what the problem is.
Sai.
Hello,
When you turn it on the green light comes on, blinks with remote functions but has no sound or picture. I have replaced the main board with no change.
When you say that you have replaced the capacitors in the DM main board i assume you mean the power board? If the green light comes on and blinks when the remote is touched it was never a issue with the main board, if it was you wouldn't have any signs of power. In most projections TV's you have the main board which is normally the power board, the signal board which receives signal and hold settings of the TV which can be all in one, the other is the inverter board, which scrambles the signal to what you see on the screen, and next we have the back light which lights the screen so you can see the picture, sometimes in certain models as i have learned you can have power/inverter boards which means the inverter and power are all on the same board, in your case i presume the inverter board is separate board and probably the issue you need to address, you can buy these online probably the same place you got your new main board from. Hope this help in solving the problem....
Hi,
This
model is equipped with a self-diagnosis feature to help
with diagnosis of shutdown problems, to activate this turn the unit on
let it shutdown then press the input/or device and menu buttons on the
front panel simultaneously and hold them in for 5 seconds after 5
seconds the power LED on the front panel will blink a two digit
sequence. This will be one set of blinks a short pause then another set
of blinks, this will repeat 5 times.
Let me know,so that we could
Proceed.
Hope i helped you.
Thanks for using ' Fixya '
and have a nice day!!
57 views
Usually answered in minutes!
12 and according to my repair manual that's normal operation.
12 and according to my repair manual that's normal operation.
I performed the self test and recieved 12 and according to my repair manual that's normal operation.
I believe I am not conveying the problem correctly. The tv worked fine. The power went out. When the power returned, the green timer light flashed non stop. The tv would not turn on. I had the 7 capacitors replaced on the DM board. I mention had them replaced because I figured it was best to have a proffesional do the soldiering, not me. I re installed the DM board. The tv now turns on and works fine, but only for about two minutes. At that time it turns off. My green timer light starts blinking for about 30 seconds and then I can turn the tv back on. It acts as if it was rebooting or the same as if I hit the reset. If I run the self test, I recieve a code of 1,2. This means, normal operation. The remote does not come into play during any of this.
I believe I am not conveying the problem correctly. The tv worked fine. The power went out. When the power returned, the green timer light flashed non stop. The tv would not turn on. I had the 7 capacitors replaced on the DM board. I mention had them replaced because I figured it was best to have a proffesional do the soldiering, not me. I re installed the DM board. The tv now turns on and works fine, but only for about two minutes. At that time it turns off. My green timer light starts blinking for about 30 seconds and then I can turn the tv back on. It acts as if it was rebooting or the same as if I hit the reset. If I run the self test, I recieve a code of 1,2. This means, normal operation. The remote does not come into play during any of this.
As I have stated twice now, 1,2. Normal.
I believe I am not conveying the problem correctly. The tv worked fine. The power went out. When the power returned, the green timer light flashed non stop. The tv would not turn on. I had the 7 capacitors replaced on the DM board. I mention had them replaced because I figured it was best to have a proffesional do the soldiering, not me. I re installed the DM board. The tv now turns on and works fine, but only for about two minutes. At that time it turns off. My green timer light starts blinking for about 30 seconds and then I can turn the tv back on. It acts as if it was rebooting or the same as if I hit the reset. If I run the self test, I recieve a code of 1,2. This means, normal operation. The remote does not come into play during any of this.
I'm hoping you will read all the solutions I have recieved. No one seems to read the whole thing and asks me to do something I have already done or gives me a solution that makes no sense to me. The last expert gave advice sounded like things I have already done and in a manner that seemed I was a tv tech. If I was, why would I be using this?
×