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if you want to replace the cable you need to know how to soddered
if you do know i have cables that might fit in the machine
let me know if you want to buy the cable or if you can do it yourself
I can fix this
You have bad capacitors in the power supply or around the 5v & 9v regulator circuits. If you have a meter just measure the outputs of the regulators. If you don't know what a voltage regulator is or does you should call a qualified repair shop. Estimate repair cost $250
There are many regulator IC in TV you can find it easy the commonly used are 3 pin part number is 4 digit example LM7809/AN7809 this means possitive ic regulator 9v output. LM7909/AN7809 means neg. output 9V. so you can search it on your board. Good Luck
I don't think the 12V power pack is the problem. Generally there would be a regulator on the plug pack input to the transmitter (as power packs are notoriously bad at voltage regulation).
My guess is it an 'earth leak' between the TV and the transmitter via the audio lead. Does the powerpack have a earth pin. If so, are you able to plug it into an non-earthed power outlet.
If this isn't possible try removing the ground connection from the audio lead.
It could also be a bad audio lead.
Is the TV mono and the transmitter stereo or visa versa? You may need a mono to stereo lead.
There are some transistors attached to heatsinks (small heatsinks) on the left portion of the chassis. this board that has the input board attached to it is the signal board. those transistors are regulators they are labled 7809 or 7805 depeding if they are 9 or 5 volt regulators. use a multimeter to determine if one pin has 9v (or 5v) coming from it. if not this is your problem. i see alot 9v regulators going bad, some take the cap attached to the 3rd leg with it so check that too. if this sounds overwhelming it might be a job for a repair tech.
postive 9v regulator on the signal board and possible capacitor right next to it. the regulator is generic 7809. if you test the output it will be 6 or 7v needs to be 9. when the lines go away it is warm and will read 9v. so do the test cold. i'm assuming you know how to use a multimeter. if not then a local repair shop can do this for you.
Theres a leaky capacitor on the 9V regulator output line. If you don't know what I'm talking about, you probably shouldn't try but it should be a fairly reasonable repair by a pro. Good Luck
I have seen this many times. There is a 9 volt regulator on the small signal board that causes this. The regulator goes bad and the 9 volts starts dropping, especially at start-up when the regulator is cold. If the voltage is below 8 volts then the picture gets dark and the vertical becomes unstable, with the picture squeezing down and/or rolling. As the regulator warms up the voltage starts rising back towards 9 volts and the symptoms start clearing up. There are 3 regulators in a row on the board and the regulator in the middle is always the bad one. Replacing that regulator should cure your problems but it should be replaced by someone experienced in servicing Mitsubishi projection TV's because pulling the chassis out is quite tricky.
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