Question about Akai PT4298HD Rear Projection Television
After doing the optical focus, I stupidly took the cover of the blue CRT off, forgetting about the coolant. Well, by the next day, a little had seeped out because I didn't screw it back down tightly enough (rectified), this dripped onto the convergence board, shorting it out I assume.
I cleaned all of the coolant (none had dripped farther than the convergence board, and there wasn't lots of it around). I have a new convergence board on the way, but I'm working about fuse problems on the power supply. I've tried unplugging the convergence board's power and turning the tv on, I still get no sound or picture and the blinking timer light up front.
But I don't even know what to look for on the power supply board. Are these fuses like on your car that can be unplugged, or switches like in a house? Will I need to do some soldering? I'm prepared to buy a solder, multimeter, service manual, etc. to try to fix this, as it's all cheaper than buying a replacement. If I need to take the power supply out to do some soldering, what should I be careful about? Will the PS just unscrew like the convergence board? I know tvs can hold deadly electrical charges, so I'm worried about that.
Where ca i find a gasket for crt tube on assambly unit i got a pitch in the gasket ball i was told to use high temp b26 silicone over to glue the small hole i´m having hard time to find this gasket anybody knows
Posted on Nov 14, 2008
Well I have work on many set, but I must say I have not work on an Akai but I think this set is much like the Apex and the PS may have a fusible resistor open. Second I have changed many of CRT fluids, but I have found that changing the gasket will cause leaks to cease. If you get the power supply out check the resistors and fuses. This sounds like your problem, but first I would make sure leak is taken care of, because if not you've wasted a good convergence board.
Posted on Mar 19, 2008
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Posted on Jan 02, 2017
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