TV powers up for about 2 - 3 seconds then powers off. Problem code is 22. From my other findings, this is a short. I believe I can fix it myself with a little direction. Can someone talk me through it?
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Error code 22 on this model is most freguently a problem with convergence. Error code 21 is usualy the DM module.
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.
Convergece 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.
error code 22 is a short protect circuit. this means the tv has found a
problem in the tv and will not let it turn on till fixed. this could
be several different circuits in the tv that is causing this. we need
to test some parts to see what this is. the most common is a shorted
convergence circuit. a repair on this would range around 400.00. You should check using a multimeter and also you should be good at soldering
PS:I strongly advice if you don't have experience in electronics then better leave this job to a tech
after tv shuts off press and hold menu and input buttons on tv at same time for about 8 second. power led will start to blink error code 12 ok 22 dead short 23 deflection failore 24 vertical failore. after you know error code have electronic technition repair for you. J.D.W.
Yes , just find the blacken fuse
or if none appear to be black ,look
very closley at the fuses and you
should be able see the broken wire
inside the glass houseing pull it
take it to raido shack replace it done.
Hope they didnt charge too much.
22 error is the code for short protect which could be the two STK392-110 Convergence ICs as thats the number one component to short out . It could also be leaking coolant check the boards for any sign of a sticky residulr that would indicate that the CRTs are leaaking coolant on the boards.
Unplug the TV for a minute then plug it in while observing the power light. If the light flashes three times then the standby power supply is OK.
If the standby power supply is OK, a diagnostic code can be read from the green power light by counting the flashes. Press the power button once (this sets the diagnostic code). Press and hold the INPUT and MENU buttons on the fron panel for 5 seconds then release. The green light flash a two digit code (x flashes, followed by a pause, then y flashes). If it flashes a 2-2 code then a short circuit has been detected in the switched power supply. It would normally flash a 1-2 code for "no problem detected".
If a 2-2 code is read, check for blown pico fuses on the POWER circuit board. If the FA904 or FA905 fuses are blown then most likely at least one of the two convergence driver ICs are bad. It seems like this is the most common failure. I replaced these fuses and ICs in my TV. The parts cost me $50, but it required extensive disassembly, PC board desoldering & resoldering, and reassembly. If you can resolder circuits on a PC board then you can probably fix it yourself, otherwise call a repair person.
This set has a problem in the horizontal sweep circuit or in the main power supply. Most likely a failed component, and the set shut down to protect the rest of the circuit. If you know how to read a schematic diagram and how the circuits operate, then you will need a good multimeter and an ESR type capacitor checker to find out the short in this set. Sometimes the CRTs(Picture Tubes) will leak the coolent fluid out and onto the printed circuit boards. Also sometimes the convergence IC's can cause this problem, but if that is the case the small little pico fuses will pop also. If you have had no solid state or printed circuit repair experience, play it safe and call in a trained tech. Good Luck