Does anyone know where the LCD backlight circuit is?

[Heriberto Batchellor]

Does anyone know where the LCD backlight circuit is?

 

[telectrix]

he's behind you. ?

 

[Lucien Nunes]

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.

 

[Heriberto Batchellor]

I think maybe here?

 

[static zap]

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 !

 

[Heriberto Batchellor]

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 !

Thank you dude!