compaq cq20 no power

[sasser]

Re: compaq cq20 no power

After checked caps and resistor around kbc i found 1 resistor faulty and replace with another on and standby power coming 1.300a. Intel southbrigde very hot. Maybe need to replce

[sasser]

Re: compaq cq20 no power

yes finally i solved this problem. CQ20 is normal if stanby power without press button only 0.0203 then when press button motherboard got 1.200-1.300A. for power on the motherboard checked fan connected or not. when connected with CPU fan the laptop is straightly display . maybe sensor detected no connected fan and the current cut off.

now my laptop can turn on with normal display.
before this i try change nec/tokin with tantalum 330uf .after check positif pad is 1.22v. actually its normal when got 1.22v on nec. no need to replace with tantalum 330uf.

thanks all masta.

[dj_ricoh]

Re: compaq cq20 no power

Nice!
what did you change only that resistor? what value was it?

[sasser]

Re: compaq cq20 no power

Dj ricoh Both side Got 3.12v when adapter on.

[bios com]

Re: compaq cq20 no power

dear all forumers
i have trouble with my compaq cq20.. i can't use my onboard keyboard when i try to entering my bios even in my win7 it can't work. than i try use the external keybord but it seem's like my usb port is also not working.
anybody... can u help me to figure it out ???