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Re: unpluged the crt circuit boards. was getting 2-2 code...
Okay. now what you have to do is plug one crt back in and try it if the fuse doesnt blow then plug in the second CRT and try it again. then if it still doesnt blow with the two CRts plugged in then plug in the last crt if it blows thats the bad crt, and it will need to be replaced. But when you plug in the bad CRT the fuse will blow. Then let me know which tube as I have a good source for mitsubishi CRTs at real cheap prices.
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this is going to sound weird but...its true. do you burn scented candles in your home? if you do, you have a connection problem between the CRT and the CRT Circuit boards at the socket.
the fix is- unplug TV, take off speaker grill (it just pulls off- no screws) and there will be a panel that can be removed. Take that off. now you see the ends of the CRTs (picture tubes). Lossen the the first screw up the neck of the tube from the circuit board on each tube. Wiggle the circuit board off of the tube and clean the pins on the tube with sand paper or a small wire brush- be careful not bend the pins. Slide the circuit boards back on- lightly tighten the screw. do this to each tube. The pins do not have to be perfectly shiny, just get a little of the tarnish off the outer edge and you will be fine.
The scented candle effect- those candles distribute an oil in the air (the scent) which causes a chemical reaction on the pins of the tubes and tarnishes them causing a bad connection. The way to avoid that is to use soy based candles as they do not use the same oil that causes the problem.
More than likely your tact switches are sticking in the little circuit board on the front of your unit. If you unplug this circuit board and the problem is resolved then you know it was the culprit. The unit should still work via remote while you have the board rebuilt. It unplugs from behide the screen near the back of the crts on most models. If problem persist with brd disconnected then its probably the eprom.
Sizzle cound be crt arching or hv transformer. look for burn marks on transformer on deflection board. unplug set and remove crt boards from the crts and see if set will turn on. if replace arching crt. expensive. not to be attempted by amature.
If you put the "CR" board back on, the error code will once again be 5 blinks. Your problem is likely the TV's IK blanking circuit. The Kine driver ICs on the CRT sockets boards CR, CB, and CG need replacement along with a few components in the 200 volt supply to the circuit.
Not much help here. The Toshiba 57H94 is CRT based unit and does NOT have a lamp to burn out. CRTs rarely "burn out" - especially all three tubes at once. Not sure if there is a user-serviceable component, such as a fuse, that would correct this problem. Proceed with caution if you feel compelled to go inside the set. Very high voltages are present, even if the TV is unplugged. Unfortunately this sound like a service call issue.
does the led flash when you try to power it up? If so let me know the number of flashes. From your description I would suggest 1 of 2 things happened. (1) The Convergence amp ICs have shorted and blown the 5 amp fuse on the G board, or (2) the red CRT has shorted shutting the set down. Check the fuse and if blown replace the fuse and disconnect the Red CRT PC board from the RED CRT and try powering up the set. If it powers up without shutting down then unplug the set and rehook the RED crt pc board and try again if it shuts down the reds shorted. But if it still wont start with the CRT unhooked or blows the fuse Change the Convergence ICs
The 46H84 has 3 CRTs instead of a lamp. Red, Green and Blue. Your red CRT is shorting out shutting down the set.Here is how you test that theory. Remove the speaker grille, there will be an access panel behind the grille remove that and you will see the CRTs red is usually on the left. hit the power momentarally to locate which tube is red. then power down and unplug the power cord. Carefully remove the tubes Circuit board. ( you may have to carefully slice the glob of silicone applied at the factory to get the circuit board off) Once you have the circuit board off the Red CRT make sure it isnt touching anything and try powering up the set. If the set stays on and the other 2 CRTs light up. That tells you the RED crt is shorted and thats whats shutting your set down. Let me know if I can assist you further.