820-2936 lcd_bklt_pwm up and down loop (0-3v)

MacLab

Member
J6955 diode mode reed (disconnected)

pin4 = 0.52v
pin 5 = 0.77v
pin 6= 0.52v
Pin 8= 0.77v

R6961 ok

cap c6951 corroded but i changeit and still the same with smc_lid
 

2informaticos

Administrator
Staff member
Remove R6961 and check again SMC_LID.
Also inspect R5071; you can force with 10K, instead of 100K there.

3V42_G3H stable?
What is exact PPBUS_G3H voltage (without battery)?
 

MacLab

Member
PP3V42_G3H = 3.46V
PPBUS_G3H = 12.54V
Remove R6961and still has 0-3.4v loop

I change r5071 for a 10k resistor and still have the same issue :(
 
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