820-2993 No fan

[Bohmmen]

The fan is dead on this Mini. I have tried other fans but none works.
Can't find boardview or schematic for this machine.
Voltage on connector:
1: 0
2: 3,3
3: 3,3
4: 1,6 (dropping)

 

[TCRScircuit]

So it boots but no fan spin?

 

[TCRScircuit]

Is this a 2012? If so I would look at a schematic for a fan circuit on a macbook board and see if you see any resemblance... That's if the fan is the issue.. Troubleshooting without a schematic is going to be a tough one.

 

[Bohmmen]

Yes, It works fine except for the fan.
I think it's 2011.
Thought about looking at the schematic for 2936, maybe the circuits are similar

 

[dukefawks]

There are no schematics. Fan pinout is all the same and pin 4 should be 5V. Check any other schematic and look at fan connector.

 

[Bohmmen]

yes, will do that tomorrow

 

[TCRScircuit]

2936 is the same fan circuit as Bohmmen suggested.

 

[Bohmmen]

Read Comments!!!! It wasn't Duke

 

[TCRScircuit]

Sorry about that Bohmmen !

 

[Bohmmen]

Found a resistor that was knocked of the board. Now the fan is spinning again! YEAH
Mark as fixed