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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Hi folks,
I've just bought a second hand Mitsubishi TV - worked fine in the vendor's house, but got it home and although it will go onto standby, any attempt to switch it "on" and get a picture displayed results in it turning itself off within 1/2 second or so, and remaining completely off for anything up to a minute, until the whole thing starts again. Does this point to anything in particular? I'm thinking it must have got bashed in the car on the way back, but I really don't remember this happening... TIA for any help, Toby -- Toby Marsden Berkshire, UK |
#2
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Gov: you may want to post the model number and chassis number if available.
Basically my guess would be some type of power supply or protect problem. Generally one will need to open the tele up and do some basic diagnostics inclusive of verifying presence of necessary standby and operating potentials. Also making sure that nothing got disconnected or cracked as a result of transporting it. "Toby Marsden" wrote in message om... Hi folks, I've just bought a second hand Mitsubishi TV - worked fine in the vendor's house, but got it home and although it will go onto standby, any attempt to switch it "on" and get a picture displayed results in it turning itself off within 1/2 second or so, and remaining completely off for anything up to a minute, until the whole thing starts again. Does this point to anything in particular? I'm thinking it must have got bashed in the car on the way back, but I really don't remember this happening... TIA for any help, Toby -- Toby Marsden Berkshire, UK |
#3
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What he said.
Also if it's cool or cold outside it might have weal lytics. Cool them down enough and they act up, but they're OK when warm. If it's shutting down immediately there are probably weak lytics in the power supply, and it's possible the seller wasn't even aware of it. IT's actually possible that there was no damage, and really no culpability anywhere here, except maybe the manufacturer. An ESR meter would be handy about now. JURB |
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