Hi I 'm looking for a service manual or schematic or similar for this TV.
All voltages, 5V, 12V etc are there but no backlight. From the mainboard there is a signal coming which is called PWM_OUT, I'm assuming this to be the signal; that controls the backlight intensity? The signal is only 100mV or so with a 50% duty cycle or so.
From the PSU then goes a cable containing signals FB and LD.
FB sounds like feedback but what is LD? FB stays 0V all the time, LD is 0V when TV is off and just under 10V when TV is on.
All voltages, 5V, 12V etc are there but no backlight. From the mainboard there is a signal coming which is called PWM_OUT, I'm assuming this to be the signal; that controls the backlight intensity? The signal is only 100mV or so with a 50% duty cycle or so.
From the PSU then goes a cable containing signals FB and LD.
FB sounds like feedback but what is LD? FB stays 0V all the time, LD is 0V when TV is off and just under 10V when TV is on.
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