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Vertical Deflection on Mitsubishi CS-2910C    
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hcksharp



Joined: 01 Feb 2009
Posts: 2
Location: Canada
PostPosted: Sun Feb 01, 2009 4:26 pm    Post subject: Vertical Deflection on Mitsubishi CS-2910C Reply with quote
Hi folks, I got a vertical deflection issue on my Mitsubishi TV. Followed this guide and re soldered all pins.
http://www.riddledtv.com/repair/journal/Vertical/

Thing still does not work, what to check next, or do I need a new IC. Is it possible to test the IC with a multimeter?

Thanks, Tom
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kuhurdler



Joined: 28 Dec 2006
Posts: 2879
Location: Overland Park, KS
PostPosted: Mon Feb 02, 2009 6:34 am    Post subject: Reply with quote
Chassis UM2-C-10R

I'd try replacing the vertical IC, as well as checking (or just replacing) the electrolytic caps in the vertical circuit.
JTS1957



Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away
PostPosted: Mon Feb 02, 2009 7:06 pm    Post subject: Reply with quote
If you have No vertical deflection and you've already resoldered the I.C., then make sure the I.C. has B-Plus, and if so then replace it. Also the (usually) 100ufd to 220ufd electrolytic near it.
hcksharp



Joined: 01 Feb 2009
Posts: 2
Location: Canada
PostPosted: Tue Feb 03, 2009 8:16 am    Post subject: Reply with quote
Thanks much for the feedback. Could you please explain how to check B-Plus? Visual no discolor on ufd's and no shorts on diodes.
JTS1957



Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away
PostPosted: Tue Feb 03, 2009 1:02 pm    Post subject: Reply with quote
Measure each pin of the IC for dc voltage. Depending on the part number, one or more pins will have B-plus (VCC) on them (do a search for a datasheet for your ICs number).
If your multimeter measures capacitance, you could check lytics (out of circuit) for "value". You usually can't tell if bad by looks, although Mitsubishi is famous for lytics leaking onto printed circuit boards (oily stain on board)
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