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If its a Toshiba either you did something wrong (set has 3 convergence yoke plugs that are identical but have to be plugged in correct socket) or you missed an open resistor near the chips---most of those are 1.8 to 2.7 ohms and will look perfect---I always check all of them when replacing the chips.
Alot of techs recommend using the higher wattage ICs to replace the stock ones, which is never a good idea since the resistors get stressed. Upgrading to the STK394-160 IC is the only upgrade Hitachi recommends but then the values of the resistors need to be changed since the stock resistors will not work with the upgraded ICs
Replacing the IC's and the checks you did usually solves the problem.
Double check your wires - especially the R,G and B convergence wires going to the CRT necks - I've had them mislabbeled from the factory b4 and that really throws you off.
Was there any change in symptoms once the IC's were changed and do you have the negative and + supplies feeding the IC's (usually around 30VDC)
If you have the manual, have you tried service menu convergence adjustments?
From my experience most people find out their Convergance IC's were the cause and burned out again because of faulty 6.8 ohm resistors or just plain failure to replace the the resistors when they replaced the IC's. sadly if your planning on spending more money I suggest New IC's use 150's instead of 120's ALSO, make very sure you've changed out all 12 resistors and make sure they are metal film resistors.
What you possibly need: (2) STK392-120 OR STK392-150 IC chips (12) 6.8 Ohm Metal Film resistors 15 watt pencil solder pencil, DO NOT use a high watt iron you will fry the surface mounted item. good leaded solder, and flux
BTW, if you give up on the TV I'm still looking for a Convergance circuit board yours sounds fried but I would mind trying it out its better then nothing, and ther are a few other people on here looking for parts... so you never know...
you need to replace both convergence Ics. Post the model number of your set and I will post the correct IC numbers as well as alink where you can get replacements with free instalation instructions. Respond to this same post so I will have access to your symptoms when you post the nodel number.
most like tes thats all your going to have to replace + the silicon as if you dont thet wil not last as long as they should. Also you may have blow fuseable resistors next to the ICs make sure you check them as well.