macRepairAmb
Member
Got this board that had heavy corrosion damage on and around the backlight circuit. Found blow cap C8467 and also had to replace R8446 as pin 2 of the resistor along with the pad was corroded. Due to R8446 solder pads being damaged, i soldered it to C8457 and ran a line from pin 2 of the resistor to J8401, pins 1 and 2. The laptop powers up and works except when powered down, the keyboard backlight goes off as expected, but then after about a second or two, the keyboard backlight comes back on and stays on.
When OS is loaded, the keyboard backlight doesn't respond when i attempt to increase or decrease, it remains on at full intensity.
Any suggestions
When OS is loaded, the keyboard backlight doesn't respond when i attempt to increase or decrease, it remains on at full intensity.
Any suggestions