Originally posted by kasfamily
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pins for turn on fsp123-3f01 power board
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Originally posted by spantor View Post
There is -5.31voltage between pin bl and gnd when I turn on the TV. Then the voltage disappears definitively at the end of the cycle of the two flashes of the standby LED
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Originally posted by kasfamily View Post
Why on S2000 pin BL=0, to turn on the backlight there should be about +5 volts
Pins 110vac and 50vac should be measured in alternating current? I thought that VAC refers to alternating voltage current
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yes-Pins 110vac and 50vac should be measured in alternating current.
If 5 volts do not appear on pin BL, then there is a problem on the motherboard.
to check the operation of the backlight inverter, connect pin 5v with pin BL via a resistor with a nominal value of about 1 kOhm
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