New here - 820-00165 green nicht orange light ok - no s5 Power rails

Sn0w3y

Member
So i am new here and just wanted to ask you guys what to check next if 5v Power rails are missing..

Thanks in advance ! Sorry if I bother you guys..
 

2informaticos

Administrator
Staff member
First of all, welcome to the forum!

Do you get stable 3V3_S5/SUS?
Any pulse at 5V coil, or other?

Post exact PPBUS_G3H voltage (F7140).

I just have read again.
Please clarify, missing all S5 power rails, or only 5V???
 
Last edited:

Sn0w3y

Member
Thank you :)
I will answer all of your questions tomorrow :)

PPBUS_G3H is 8.59V

I haven't that in my mind rn - will answer tomorrow.

Thx in advance :)
 

Sn0w3y

Member
PP3V3_S5 = 0.454V
PP3V3_SUS = 0,024V
PPBUS_G3H = 8.60V
PP5V_S5 = 0.125V - falling !
PP5V_S4RS3 = 0.00V
PP5V_S0 = 0.00V

I hope thats all you need :)

Greetings !
 

2informaticos

Administrator
Staff member
Post basic voltages for U7501; pins 23, 12, 13, 22, 29, 21.
Use surrounding components as test points.

Check for short at 3V3/5V_S5 and big coils.
 

Sn0w3y

Member
U7501:
23 = 8.60V
12 = 0.033V
13 = 0.000V
22 = 3.3V
29 = 0.12 rising !
21 = 0.033V

no short at 3V3/5V_S5
 

2informaticos

Administrator
Staff member
Missing SMC_PM_G2_EN is SMC issue.
Start reballing it...

"green nicht orange light ok"
Do you get, or not orange light???
 

Sn0w3y

Member
sorry i get green light and orange light !


Edit:
I now ordered a Stencil to Reball the SMC.
Gonna inform you if something changed !

Do you think the Problem is solved after reballing or should i change the SMC?

Thanks for the help !
 
Last edited:

2informaticos

Administrator
Staff member
New SMC doesn't serve; MUST be picked up from same board model.

Did you reball it and no success?
 
Last edited:
Top