Question about Televison & Video
Emerson Model EWF2006
bought on 4/23/07
won't power up
high pitched sound
I have an ilo 32 inch color tv model #iwt3206 just now 3 months old the tv madea trip to florida from new york in feb( 24 hour trip) got to florida plugged tv in . loud pop in outlet but tv powered on with no picture and then would not make any sound or give me any picture ... now the tv whenever plugged in just has a high pitched whistle with no power on or sounds other then the whistle ... what might this be and how would i fix this?? or what could i do ??
It sounds like the high voltage circuit got damp and arced. This arc caused the horizontal output transistor to short.
You might try replacing the output transistor if you're experienced in this type of repair. If not then you need to take it to a repair shop.
The "whistle " you're hearing is the power supply indicating that it has a short on its load. When the power supply has an over load (short) its frequency drops down when your ear can hear it oscillating. This type of power supply is a switching power supply normally operating a several thousand hz(cycles) which is out of range of human hearing.
Posted on Mar 16, 2008
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Posted on Jan 02, 2017
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