00165 Fan spin 10 seconds then nothing

[Rford]

Have a 00165 with 10 seconds of fan spin, then nothing... History liquid damage, burnt components @ PPDCIN area. Replaced components and ISL 6259. Have green light that turns orange. Any ideas what would cause the 10 second fan spin? its not 1/4 fan. BTW it didnt even do the 10 second spin until i replaced those components.

 

[supamodz]

Double check your logic board connector for loose pins or corrosion from the dcin board to your logic board and flex cable if that is good check your current sense resistors around u7000 and check your soldering for u7000.

 

[dukefawks]

No idea why you replaced all those chips if you had fan spin. Now it can be anything, when did fan spin stop? Checked for power cycling? 3V3_S5 still present? PPVRTC?

 

[Rford]

No idea why you replaced all those chips if you had fan spin. Now it can be anything, when did fan spin stop? Checked for power cycling? 3V3_S5 still present? PPVRTC?

10 seconds was probably an over estimation, more like 3-4 sec. I couldn't classify that as 1/4 fan spin though for obvious reasons.

3.3V on 3v3_s5
3.42 on PPCRTC...

where would I check for power cycling? It has a green light and switches to orange if thats what you mean.

 

[dukefawks]

I have no idea, if it is dead now after replacing all those chips for nothing then at least there is a problem there now. Pulsing will be on all rails, but first in line is 5V_S4.

 

[larossmann]

termination resistors are in line, pullup resistors are not.