Hi I have an 820-00165 in with no liquid damage and nothing looks burnt but board wasn't turning on. Checked around and is missing PM_SLP_S4_L
I have a clock signal, S5 voltages and PPBUS_G3H. Amber light on charger and PP3V42_G3H fine. However I only had 1V on SMC_PM_G2_EN.
Replaced SMC and I have 3.4V on SMC_PM_G2_EN, SMC_RESET_L is fine. However I have 0V on SMC_DELAYED_PWRGD and still no PM_SLP_S4_L
I put it all back together (I can't remember if these is one of those that needs a battery to power on) and noticed that I got no fan spin even in SMC bypass. However, with the battery connected and I plug the magsafe in or press the power button the fan spins fast for 1 second then turns off.
Replaced BIOS and Clock Chip like a monkey just in case but still no luck.
Any ideas what to check next? Throw it in the bin?
Really appreciate the support thanks!
I have a clock signal, S5 voltages and PPBUS_G3H. Amber light on charger and PP3V42_G3H fine. However I only had 1V on SMC_PM_G2_EN.
Replaced SMC and I have 3.4V on SMC_PM_G2_EN, SMC_RESET_L is fine. However I have 0V on SMC_DELAYED_PWRGD and still no PM_SLP_S4_L
I put it all back together (I can't remember if these is one of those that needs a battery to power on) and noticed that I got no fan spin even in SMC bypass. However, with the battery connected and I plug the magsafe in or press the power button the fan spins fast for 1 second then turns off.
Replaced BIOS and Clock Chip like a monkey just in case but still no luck.
Any ideas what to check next? Throw it in the bin?
Really appreciate the support thanks!