For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
Is there any video which can give full information of the functioning of step by step signal of the led of a 1502. (820-4924). I have dim display. Replaced brightness ic. All voltages missing. If possible pls provide how this circuit works. thanks
yes i am getting image. question mark blinking.
yes i measured in diode mode . forward ie: red probe ground and black on pin 1 - 1.225 is the reading . reverse ie: black is ground and red on pin 1 - infinite. This is same even in ok board.
DP_INT_HPD and LCD_PSR_EN present . I have not checked this signals. I will chk and give you update.
"EDP_BKLT_EN , EDP_PANEL_PWR , all three signals are missing
LCD_PSR_EN --- 0v"
Then is impossible to get L8300 voltage, so no image possible!
PLEASE, post accurate information.