The front LED comes on and mine beeps. I just fixed the convergence on
mine and it was working fine. When I unplugged the eft board with the convergence IC's on it the bulbs came back on, but of coarse there was no picture. I took that board out and for some reason it was wet. I cleaned it with alcohol after changing the IC's and resistors. That was hours before I put the board back in though, and I made sure it was dry. Is this some sort of leakage from the IC's? What is this new problem all about?
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This tv problem are also part the tv Convergence board problems too.The tv convergence board are toally dead have no power voltages activity to the tv convergence board at all.That why u only have chirping sound only.If ur tv convergence board that have some power voltages activity left and have dying parts on the tv Convergence board only.Tv will have picture but have problems R,G,B colors lines mis alignments,have colors shadows pictures or 3D pictures only.The tv convergence board must be repair like replaced 2 STK convergence ICS and some or all it resitors too.Will fix the tv convergence board will fixed the DLP tvs with chirping noises too.The tvs shops will cost u like $300-$350 for parts and labors to fixed the tv convergence board.
If it looks 3d or warped its a convergence problem
This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.
Common Symptoms include....
Screen looks 3D
Colors don't line up
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed or warped.
TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
You need to replace both of your convergence ICs STK392-110s
use 120s Mats has them 1-800-628-1118 Check Low ohm resistors near ICs 1.8ohms 3.9ohms 2.7ohms etc... RK48 RK50 RK54 RK58 RK60.
On front of convergence board is a blue contact switch this is how you enter convergence pattern R/G/B to adjust convergence,
you can remove Front bottom panel and see the contact switch from front of TV With TV on Press and release then Pattern should come up. When you call Mats ask if they have Convergence Kit that has ICs and resistors in it!
Thats usually a sign of a bad flyback and or HOT being open due to the Flyback. If you need to know where to get parts with free instructions let me know, But respond to this post so I have your model number.
two STK392-120 convergence modules that usually cause the beeping. So I
changed them both again, but I also found two open 7.5 ohm resistors
are in the general area of the convergence modules, and I replaced them
as well. I also replace 1 swollen capacitor that was probably going to
blow in the future but not really a problem yet. http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html Sony Convergence http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/ http://www.techlore.com/article/19631/Sony-Convergence-Procedure/
Rainman, can`t really be of any great help on this one, both techs can be right, the chirp is exactly as you thought, the set is trying to come on but there is a short in the set and it`s shutting down because of the short, could be convergence, low voltage power supply, high voltage power supply, until a tech gets in there and starts un-loading circuits it`s impossible to say where the short is, gonna have to call someone out for this one, good luck with it, BMW Rider
A chirping sound usually means that one of the secondary supplies has shorted, most likely the horizontal output transistor. The power supply "chirps", which is the sound it makes when it protects itself from drawing too much current. The set should be serviced by someone with experience in Philips projection TV'.