Question about Televison & Video
I know its an older set but is in great shape so im trying to save it for another 2-3 years if I can.Im trying to locate the vertical output ic in this unit.I have no idea what im looking for or where to start.Thanx for helping.
To check the pico fuses you're merely testing for continuity. If you get an infinate reading you're in good shape - if it doesn't budge the meter the fuse is open... That's a really easy set to work on for convergence problems - the convergence board is easily removed..
Another cause for mis-alignment like that are the youke return resistors... There are several out front of the convergence amps that may have changed in value. They are 3.9 ohm - 2w resistors and will look identical to Rz123 and Rz124 (same banding). For those simply select a low ohm setting on the meter and check to see if any of them have some way low or way high reading...
Need anything else just ask...
Posted on Dec 10, 2007
I have the same set and just fixed this problem toinght! I bought a couple of STK392-120s for $20 from www.electronix.com and with a soldering iron, heat sink compound and a solder sucker was able to do the job myself in a few hours. I did purchase the 6.8 ohm resistors too, but they all checked out find so I didn't replace them. There's a great site online at http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm that shows you the ropes, just not for this exact set. Once I did a multipoint reconvergence, the HD looks like new! This is at least a $600 service call from what I can gather, and if you're handy you can fix it yourself.
Posted on Jan 14, 2008
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