- #1
Автор Темы:
mohkamtech
hi,
Amilo M2010- platform DAOJR2MB6AO REV : A came dead.
After replacing failing Max17020 (not available) with Isl6236, +3VCPU and +5VCPU came, remained for a good time and disappeared and reappeared intermittently. Resoldering, reflowing Isl6236, didn't help, also lap refuses to fire up.
1-This intermittent problem let me wonder whether Isl6236 is the proper replacement part for Max17020 ?
2-If it is ok, then any idea as where to dig for this intermittent issue ?
When +3VCPU and +5VCPU are issued, measured at IT8502 pins :
AVCC, ACIN, NBSWON#, DNBSWON#, RSMRST, KBRST#=+3.3v
S5_ON=0v
Clock signal is ok
When power button is pushed, NBSWON# DNBSWON# RSMRST went from high to low then back to high, but
S5_ON is always =0V? it should be high.
3- Should I conclude that E/C needs replacement ?
Thank you for your help.
Amilo M2010- platform DAOJR2MB6AO REV : A came dead.
After replacing failing Max17020 (not available) with Isl6236, +3VCPU and +5VCPU came, remained for a good time and disappeared and reappeared intermittently. Resoldering, reflowing Isl6236, didn't help, also lap refuses to fire up.
1-This intermittent problem let me wonder whether Isl6236 is the proper replacement part for Max17020 ?
2-If it is ok, then any idea as where to dig for this intermittent issue ?
When +3VCPU and +5VCPU are issued, measured at IT8502 pins :
AVCC, ACIN, NBSWON#, DNBSWON#, RSMRST, KBRST#=+3.3v
S5_ON=0v
Clock signal is ok
When power button is pushed, NBSWON# DNBSWON# RSMRST went from high to low then back to high, but
S5_ON is always =0V? it should be high.
3- Should I conclude that E/C needs replacement ?
Thank you for your help.
