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The whine is a short somewhere---+ and - are marked on the board for each cap if it is polarized---usually the - will have a shaded white mark on top of board--if you got one in backwards it can explode......
Youre going to need the deflection board as the high pitched whine if it sounds like a short chirp each time the power indicator lights for the 3 times is caused by a surge taking out numerous components on the deflection board. You can get your board rebuilt through www.tvrepairworld.com which is fully guaranteed for 6 months. New replacement boards are not available anylonger for the ITC222
Thw itc222 is in shutdown the procesor has detected a short a overvoltage or any of 25 different cuircits that have a problem. ussally whine the noise or squealing occurs the horizontal output transistor and flyback have shorted. this is repairable. at my shop abot 150 repair
I work on these at the shop alot(THERE THE TESTAMONAL FOR THESE SET LOL) ok these sets itc222 chasis from rca have a processor that shuts them down for one of 25 different resons. THe sound you describe indicates to me a few possibilities. the first thing i would check if i had it in the shop would be what is known as the flyback and the horizontal output transistor. if you are a tech. these set can generate pot high voltages so be careful. there is some times i have seen loose ribbion cables but that is rare
Ok maybe this may help .... there is a coil LL08 I believe... somtimes it creates a high pitch whine like you describe.. its stands up on the deflection board..it basicaly a large coil of copper wire....you can take silcon and put on the coil...in effect damping the ocillations...hope that might help