Question about Projection Televisions
If you hear a sqealing or buzzing sound when you plug in the TV, the most likely cause is a shortedHorizontal Output Transistor (Q405) , due to a dry10uf/25v electolytiic capacitor on secondary side of Horizontal Output Transformer. If this is the cause, there will be tell-tale scorch marks in the vicinity of the capacitor. If you do not hear any noise, then the likely result is a bad Shottkey diode, of which there are quite a few possibilities In any event, DO NOT ATTEMPT TO REPAIR ANY TELEVISION YOURSELF FOR DANGER OF ELECTRICAL SHOCK! FIGURE THAT ON AVERAGE, FOR EVERY INCH DIAGONAL OF TV, YOU WILL HAVE ABOUT 1,000 VOLTS TO CONTEND WITH. THAT MEANS THAT A 27" TV SET WILL HAVE ABOUT 27,000 VOLTS!
Posted on Sep 18, 2008
Bad power supply
Posted on Aug 18, 2008
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Sep 17, 2012 | RCA Projection Televisions
Check that the power cord is securely plugged into the power outlet.
Make sure that the power outlet is receiving electricity by plugging a different device into the plug and turning the power on. If the other device does not work you likely have a blown fuse or tripped circuit breaker.
Replace the blown fuse or reset the circuit breaker as needed. If it happens again, an electrician should assess the problem.
Contact akai Support if Steps 1 to 3 do not solve your problem. Only a trained service technician should attempt to fix the power problem with your television
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