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Dead Compaq Armada 4210T Laptop



 
 
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  #1  
Old February 13th 07, 07:29 PM posted to alt.comp.hardware
Brad
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Posts: 15
Default Dead Compaq Armada 4210T Laptop

Hi,
My brother gave me his "dead" Compaq Armada 4210T laptop to repair.
I normally service TVs and other stuff. With fully charged battery,
absolutely nothing (no hard disk spin or floppy disk drive noise (with a boot
floppy), no "beeps" or lights) happens when you turn it on, but with the room
totally quite, if I put a floppy disk in the drive, I can hear a faint noise
when I turn on the power (but floppy drive doesn't run). If I remove the
floppy disk, it isn't there.

One other thing that happens, even when using the external power (plugged
into AC), 4 of five LEDs (power, caps lock, scroll lock, numb lock) light up
(the battery charging LED is off). You can't turn it "off" to make the LEDs
go off by pressing or holding down the power button. However, if I hold down
the Ctrl key, then press the power button, the LEDs go off and I hear a faint
"tick"

I opened the unit and found a tiny 5A fuse, but that tested good
(not open). I examined circuits for bad solder joints. Also checked for
loose connections of any kind.

If you ever had this experience, please tell me what you did to fix it.

Thanks in advance, Brad

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  #2  
Old February 13th 07, 09:28 PM posted to alt.comp.hardware
Rod Speed
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Posts: 8,559
Default Dead Compaq Armada 4210T Laptop

Brad wrote

My brother gave me his "dead" Compaq Armada 4210T laptop to repair.
I normally service TVs and other stuff. With fully charged battery,
absolutely nothing (no hard disk spin or floppy disk drive noise
(with a boot floppy), no "beeps" or lights) happens when you turn it
on, but with the room totally quite, if I put a floppy disk in the
drive, I can hear a faint noise when I turn on the power (but floppy
drive doesn't run). If I remove the floppy disk, it isn't there.


One other thing that happens, even when using the external power
(plugged into AC), 4 of five LEDs (power, caps lock, scroll lock,
numb lock) light up (the battery charging LED is off). You can't
turn it "off" to make the LEDs go off by pressing or holding down the
power button. However, if I hold down the Ctrl key, then press the
power button, the LEDs go off and I hear a faint "tick"


I opened the unit and found a tiny 5A fuse, but that tested
good (not open). I examined circuits for bad solder joints.
Also checked for loose connections of any kind.


What happens with no battery at all ? The battery can
end up so stuffed that it stops the system powering up.


 




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