Re: TV won't turn on. Red power button flashes then shuts...
Did the TV work but with a convergence eproblem before you changed the STK's.? If so it is very likely you have misplaced one of the several leads when reassembling the set. It is ususally a perfect cure. Power light flashing 4 times indicates this type of problem.
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FYI: WHOEVER told you 110 chips can be replaced with 120 chips is wrong.
Easy way at this point to way at this point to see if chips are the problem is to UNSOLDER AND REMOVE BOTH CHIPS. Make sure not shorted connections and power set up---set will function without the chips but look terrible.
Try Suburban Electronics for the correct chips----only safe replacement for them is the 150 chip----stk-392-110 and stk-392-120 are not interchangeable.
The blinking light indicates a short.
LET ME KNOW IF YOU HAVE QUESTIONS AS I HAVE FIXED hundreds OF THESE SETS.
Check High voltage Block.After replacing ic's (STK convergence ic's) you need to adjust Black&White scale.Turn ALL screen adjustments to min.Turn TV on and adjust screen slowly for each gun (I would start with Red first ) when you came to point that you see red background with white lines across, at that point G2 is too high (that will cause TV to shut down,don't worry just lowered adjustment and turn tv back on) so adjust to proper voltage and do the same for each gun.After that, adjust focus for each gun (again all controls are on High Voltage Block and HVB is mounted on front of your tv after you take speaker gril out) black box with 6 controls' screen RGB, focus RGB .
You should do that in dark room in order to get perfect Black&White scale,when all guns are adjusted properly you will see grey picture.Make sure 'Color" adjustment on your display is down to 0. Another step is convergence adjustment ,Flash Focus etc.If TV stil shuts off after all, your Red picture tube is short inside,take crt pcb from tube,make sure TV is unpluged from power before that, and turn Tv on .If stays On tube need replacment...good luck)
did you replace the all three lamp the red,green and blue lamp?if not what color of lamp did you replace?try to dis connect the lamp that you installed then power the tv again if it work there might be a problem on your compatibility of lamp u use..or you can replace the convergeance ic there are two big ic in there sometimes labelled STK replace them...hope this could help..good luck!!
go into the customer menu and select convergence with the original remote; if either the red or blue will not move in some direction, you have a bad convergence IC(the WS-55411 uses two STK-392-110 CONVERGENCE IC chips)
red, green, and blue lines curve across the top of tv is cause by defective convergence STK IC or you have open resistor at convergence section. if you have defective RGB Color vertical ramp probably you have defective STK IC..
the red light flashing means the set is in auto shut down, could be a power supply problem or a convergence IC problem. tech should first check all diodes and caps in power supply then replace convergence IC's
Hi, This problem is related to the Convergence controller IC called STK.It must get malfuntioning replace the STK IC with the same numer IC. But one thing is importent that there must be two IC STK's and you have to change both of them. Thanks
Your problem could be the Convergence board is loading down the power supplies and will not let the TV set come on, or the power/deflection board, part number AA94-08574A, or the STR type regulator IC, part number
AA13-00105A. If you locate the convergence board, unplug the connectors, and see if the set will come on. if the set does come on, replace both of the STK convergence IC's at once. The part numbers for those IC's are STK392-40. You can get the original replacement IC's from MCM electronics for about 15 to 16 bucks a piece. Do not use the less expensive STK IC's as they are not the same. the replacement IC's should have the name of SANYO printed right on the face of the IC's. Good Luck