Does anyone know where the LCD backlight circuit is?
Does anyone know where the LCD backlight circuit is?
Can't read the device numbers on that pic, but in any case the circuit may be little more than a transistor and a few resistors, controlled by PWM from an output on the MCU.
Back light setting is often a user preference , so often adjustable..
(Some where in the software -- Also possible to destroy when
modifying software- backup RAM/Flash )
..Sadly I know nothing of this device..
Some processors may send a Blip to backlight as Booting up
( more noticeable with old EL 50V transformers ..ouch)
Plenty of LED backlights have a series circuit .. so chech for a voltage across ..if no current is flowing !
(Some where in the software -- Also possible to destroy when
modifying software- backup RAM/Flash )
..Sadly I know nothing of this device..
Some processors may send a Blip to backlight as Booting up
( more noticeable with old EL 50V transformers ..ouch)
Plenty of LED backlights have a series circuit .. so chech for a voltage across ..if no current is flowing !
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