Hello,
hope someone can guide me to find what is going on,
PS model : SRV2169WW
Main Board : PE0736
Got the TV in that state: the tv won't power on, RED led indicator lights when plugged into main. when power button pressed i hear some high pitch noises from PS and main, after a few second RED led turn off and after another couple of seconds lights RED again. There is no picture nor backlight nor nothing.
reading i've done so far on pins that go from PS to main:
12v - present on standby and power on.
5v - present on standby and power on.
PWRDB - dead.
PWRTV - 0v on stdby, 3v when power button pressed.
PWR_PROTECT - 2.9v constant.
PWR_SIG - dead.
AC_DET - 0v on stdby, 3.9v when power button pressed.
PWR_LCD - dead.
two 12VLCD pins - dead.
24v to inverter (?) - dead.
18V - present on power on.
tried to short 5v to pwr_sig - same thing only this time speakers make weird noise and 24v appears temporarily on outputs to inverter .
would appreciate any ideas ( or schematics
), Thanks!
hope someone can guide me to find what is going on,
PS model : SRV2169WW
Main Board : PE0736
Got the TV in that state: the tv won't power on, RED led indicator lights when plugged into main. when power button pressed i hear some high pitch noises from PS and main, after a few second RED led turn off and after another couple of seconds lights RED again. There is no picture nor backlight nor nothing.
reading i've done so far on pins that go from PS to main:
12v - present on standby and power on.
5v - present on standby and power on.
PWRDB - dead.
PWRTV - 0v on stdby, 3v when power button pressed.
PWR_PROTECT - 2.9v constant.
PWR_SIG - dead.
AC_DET - 0v on stdby, 3.9v when power button pressed.
PWR_LCD - dead.
two 12VLCD pins - dead.
24v to inverter (?) - dead.
18V - present on power on.
tried to short 5v to pwr_sig - same thing only this time speakers make weird noise and 24v appears temporarily on outputs to inverter .
would appreciate any ideas ( or schematics

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