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820-4924-a no power
- Thread starter Paky46
- Start date
"I have P5V1_BIAS in short"
Exact ohm value?
Compare with the values on C7100/1.
Exact ohm value?
Compare with the values on C7100/1.
You've said to have short at pin 5V1_BIAS.
R7191 is burnt?
R7191 is burnt?
So, do you have short there???
Already asked that, didn't get any reply...
Post U7100 basic voltages; pins 1, 2, 3, 9, 12, 13, 14, 15, 17, 19, 20, 27.
Already asked that, didn't get any reply...
Post U7100 basic voltages; pins 1, 2, 3, 9, 12, 13, 14, 15, 17, 19, 20, 27.
Post U7100 diode mode to ground now; pins 2, 12, 17, 19, 20, 27.
"i have short in r7191"
Which pad to ground?
"i have short in r7191"
Which pad to ground?
R7191 goes to pin 20 of U7100.
How don't you get ground there too??
However, 0.063 is not good; change U7100.
Check in diode mode again, once U7100 is removed (before resolder it).
How don't you get ground there too??
However, 0.063 is not good; change U7100.
Check in diode mode again, once U7100 is removed (before resolder it).
R7191 is still good, not blown?
Do you get 3V3_S5/SUS?
Do you get 3V3_S5/SUS?
Post U7501 basic voltages; pins 23, 22, 12, 13, 29, 21.
Are you sure no voltage at L7560?
Check diode mode to ground there.
Check diode mode to ground there.
I suppose you've meant L7560.
"3V3_S5=0.5"
What's this then???
PLEASE, post accurate information.
I ask again, do you have 3V3_SUS?
3V3_S5 seems to be OK.
"3V3_S5=0.5"
What's this then???
PLEASE, post accurate information.
I ask again, do you have 3V3_SUS?
3V3_S5 seems to be OK.
What happened from yesterday?
"P3V3SUS_EN=0
3V3_S5=0.5"
Trigger SMC_ONOFF_L and check for drop pulse at PM_PWRBTN_L (at same time).
"P3V3SUS_EN=0
3V3_S5=0.5"
Trigger SMC_ONOFF_L and check for drop pulse at PM_PWRBTN_L (at same time).