jasonlives2
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Jan 8, 2007, 12:41 AM
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I can't locate the convergence IC's , or the power board they mount to for a Hitachi 50ux19k Ultravision
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Hello. I have a Hitachi 50ux19k Ultravision tv and am having convergence problems. I can't line up the vertical red line with the green and blue. The horizontal lines all come together fine. There is a panel on the front containing little blue adjusters with phillips head screw slots on top of them not to mention diodes and 1 IC chip that oddly says Sanyo on it. I've read that the IC's I'm looking for have a heat sink around them. I see many heat sinks but no IC's in them. What size are these things? I see a long 10" heat sink on the left side and on the right side just inside the front is a small circuit board with 2 maybe inch and a half heat sinks on it. I keep reading about the IC's being attached to multiple circuit boards that snap together and I just don't see that. WAIT A MINUTE. I think I may have located them. The only problem is that there are 3 instead of 2 and the bottom of them are protruding from underneath the bottom of the long heatsink I mentioned earlier. The heatsink is butt right up against the floor and the wall at the same time. It looks like you have to unscrew this huge circuit floor board in order to move it out far enough to get to the back of the heatsink and unscrew the screws that undo the cover over the heatsink and IC chips. Again, there are 3 IC chips and from what I can see of them they look exactly like a picture of some 392-120 chips I had found on the internet. Is it possible that there is one for each tube on this model or maybe one of them is not an stk-------chip at all. I would appreciate any help with this before I start ripping apart things I shouldn't be. Thanks, Rick
(This post was edited by jasonlives2 on Jan 9, 2007, 12:33 AM)
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