HP Presario CQ50, AMD, power sequence Required

[sanehdeep2012]

HELLO FRIENDS,

received one HP Presario CQ50 AMD astrospher MCP laptop,


when pressing Power button LED2(charging led blink three time and goes off, during blinking of led,
L14=3.36V
L15=5.11V
L6=0.66V(Without battery)
L13=0.00 All the Time
L1=0.00V
VCORE=0.00 (all The time)
L3=0.00V (
L4=0.00V



U54= Replaced No change
PIN 14, 15 OF U54 =5.1V during led flashing when power button press and then goes low 0.00v

PIN 10,11 OF U54 alway low no change during power up and power button press.

any help on this regards is appreciable

i will be very thank full to you,,

please give me Power Sequence of CQ50 if any body have,

schematic and bios bin i have

bios already update.to new working bin

[ktmmotocross]

Re: HP Presario CQ50, AMD, power sequence Required

in schematic there is mcp67 an on bios u have mcp77

[ktmmotocross]

Re: HP Presario CQ50, AMD, power sequence Required

check resistance of that coils

also check KBC_PWR_BTN# and PWRBTN#_MCP

[dj_ricoh]

Re: HP Presario CQ50, AMD, power sequence Required

how much amps it drains with battery when its off?

did you reflow?

[sanehdeep2012]

Re: HP Presario CQ50, AMD, power sequence Required

thanks for replay to my post and giving your valuable time me,


i will check and revert back soon

thanks

[sanehdeep2012]

Re: HP Presario CQ50, AMD, power sequence Required

in schematic there is mcp67 an on bios u have mcp77

\

i have mcp77, same schematic isl with me sorry for early msp67

[sanehdeep2012]

Re: HP Presario CQ50, AMD, power sequence Required

check resistance of that coils

also check KBC_PWR_BTN# and PWRBTN#_MCP

KBC_PWR_BTN# pin is working ok it goes low during power button press, as i say power goes up when pressing powerbutton, with three time flashing of power led power goes off, during this power on process

only
L14=3.36V
L15=5.11V

is having voltage other then that no coil having any voltage,

[sanehdeep2012]

Re: HP Presario CQ50, AMD, power sequence Required

how much amps it drains with battery when its off?

did you reflow?

i have not reflow till now,
battery already i have removed , mb out saide laptop now,

[sanehdeep2012]

Re: HP Presario CQ50, AMD, power sequence Required

dear friends I am back again ,
i was found that resistance of L4 to ground is 4.9E
so i replace NVidia CHip MCP77MV-A2 Replaced,
but again it is same low resistance,
kindly help as i found same:

when pressing Power button LED2(charging led blink three time and goes off, during blinking of led,
L14=3.36V
L15=5.11V
L6=0.66V(Without battery)
L13=0.00 All the Time
L1=0.00V
VCORE=0.00 (all The time)
L3=0.00V (
L4=0.00V

[sanehdeep2012]

Re: HP Presario CQ50, AMD, power sequence Required

\

i have mcp77, same schematic isl with me sorry for early msp67

pl help and share the power sequence of attatchment model:


my model is CQ50, AMD ,NVIDIA MCP77MV-A2

astrosphere_MCP mb 07241 3 , 48.4J103.031

[sanehdeep2012]

Re: HP Presario CQ50, AMD, power sequence Required

pl any body help

[Compute]

Re: HP Presario CQ50, AMD, power sequence Required

Motherboard Wistron Astrosphere?
I need model motherboard for help you

[Compute]

Re: HP Presario CQ50, AMD, power sequence Required

already seen ...
Let me see if I have

[Compute]

Re: HP Presario CQ50, AMD, power sequence Required

Schematics, Boardview & Power Sequence

[Compute]

Re: HP Presario CQ50, AMD, power sequence Required

4.9E

4.9 Ohm?

[sanehdeep2012]

Re: HP Presario CQ50, AMD, power sequence Required

sorry master /compute sir , due to some person issues I was unable to see the replies you have send, thanks for your kind attention.


I will check and revert soon, dear thanks again

[sanehdeep2012]

Re: HP Presario CQ50, AMD, power sequence Required

thanks I was searching these things only. thanks may I need you help dear compute

[sanehdeep2012]

Re: HP Presario CQ50, AMD, power sequence Required

KBC_PWR_BTN# is ok
PWRBTN#_MCP is ok
PM_SLP_S5# is missing no voltage at that point when pressing power button

[dj_ricoh]

Re: HP Presario CQ50, AMD, power sequence Required

My friend.
3 blinks its memory.
2nd it could be CPU to.
3rd check voltage near memory socket.

[sanehdeep2012]

Re: HP Presario CQ50, AMD, power sequence Required

no voltage to memory
cpu check with replacing with new one