Lenovo X1 Yoga problem with fan

[arber1232]

hi every one i have e question ?i have Lenovo X1 Yoga problem with fan.when laptop turn on fan is spining and for 5 secon turn of .
is a problem if I join pin 1 with pin 3?

[arber1232]

Re: Lenovo X1 Yoga problem with fan

when i join this pin fan is spining

[arber1232]

Re: Lenovo X1 Yoga problem with fan

or if there is another way I can fix this problem I have found that the problem is with the board

[arber1232]

Re: Lenovo X1 Yoga problem with fan

this is shcematic for my laptop

[Vesko356]

Re: Lenovo X1 Yoga problem with fan

Check fuse F4, check voltage on pin 1 and 3, check continuity between pin 3,5 and 6 to MEC1653 ( lines FAN_ID / FAN_ON / FAN_FRQ).

[arber1232]

Re: Lenovo X1 Yoga problem with fan

i check fuse is 5 v in pin 3 (fan_on) no voltage i continity line fo 3 .5.6 and go in controller chip (u23)

[arber1232]

Re: Lenovo X1 Yoga problem with fan

Check fuse F4, check voltage on pin 1 and 3, check continuity between pin 3,5 and 6 to MEC1653 ( lines FAN_ID / FAN_ON / FAN_FRQ).

fan id 3,3v / fan on 0v and fan frq 5v