hp 14-am096tu system fan error 90b

[Romy2018]

Re: hp 14-am096tu system fan error 90b

@SMDFLEA the two caps near fan connector is connected to ic with a marked S32B 5388

[Romy2018]

Re: hp 14-am096tu system fan error 90b

@ON/OFF the board id isINERINL-6050A2822501-MB-A01

[Romy2018]

Re: hp 14-am096tu system fan error 90b

@KMMOTOCROSS the 5 leg chip has marke 58IC

[Romy2018]

Re: hp 14-am096tu system fan error 90b

anyone please help on this

[Romy2018]

Re: hp 14-am096tu system fan error 90b

anyone can help on this please still I havent solved this issue

[Techtiger]

Re: hp 14-am096tu system fan error 90b

@KMMOTOCROSS the 5 leg chip has marke 58IC

Test Voltage on all pins of this IC & mesure resistance Diode mode to GND all pins

[Romy2018]

Re: hp 14-am096tu system fan error 90b

the voltages on each pin1=0v pin2=0v goes to ground on continuity pin3=0v
pin4=3.3v pinv=0v. on diode mode pin1= 0.500 pin2=0 pin3=0.700 pin4=0.600 pin5=0.500

[Techtiger]

Re: hp 14-am096tu system fan error 90b

the voltages on each pin1=0v pin2=0v goes to ground on continuity pin3=0v
pin4=3.3v pinv=0v. on diode mode pin1= 0.500 pin2=0 pin3=0.700 pin4=0.600 pin5=0.500

Assume pin 2 is the GND of this IC the rest of the pin's seams to be fine
If Pin 4 is the enable Signal to Drive Swatch on +5V to Fan & HHD you are missing +5V input
What if you put a jumper +5V to fan & HHD and see if the problem goes off
Replace those 2 caps if you can

i found a 5 leg chip near on dvd connector the pin with the red marked is connected to the caps on the hdd and fan side if you inject 5v there the fan spins

What pin of the 5 Leg ic did you inject 5V ?

[Romy2018]

Re: hp 14-am096tu system fan error 90b

if i injeck 5v on pin 5 on the ic the fan turns on because this pin is connector to the capacitor near the hdd connector and two caps near the fan connector

[on/off]

Re: hp 14-am096tu system fan error 90b

I think this series have 2 variant model, one fanless and next with fan.

Link HD image:
https://drive.google.com/open?id=0Bw...0hQTHdYaE1VQUU
Credit to Rimas