Hi,
I found hundreds of postings regarding the Presario 1200XL series laptop with the same or similar problem as I have (see my original post below).
It is my impression that one common cause of this problem is the flash bios going bad. It seems that somehow, there is a connection with a dead RTC/CMOS battery and flash bios!!! I replaced my dead RTC/CMOS battery (like many others did), but that isn't enough.
I read several reports that stated the laptop was brought back to life after the flash bios was replaced, along with a new RTC/CMOS battery.
My impression is the 1200XL series is a LEMON or this was designed into the system so the laptop last for as long as the RTC/CMOS battery?
I am a TV, etc. service tech and I know that the contrast/picture setting from the factory is often set to maximum. The end result, this shortens the life of the picture tube, therefore reducing the life of the TV.
Brad
Hi,
>
> My Compaq Presario 1200XL laptop/notebook won't power up (dead).
>
> Note: I service TVs, etc. but not computers except my own.
>
> I checked the power micro switch (AOK). I removed the
>battery, then tried to power it up again the next day without
>installing the battery. Also, I used a bench power supply set
>at 19Vs as a sub for the AC adapter with the same results.
>I checked the 5 amp fuse on the mother board.
>
> When I press the power button/switch, there is absolutely no sign
>of a response (reason I checked micro switch).
>
> The only indicator that lights is the one that shows the AC adapter
>is plugged in.
>
> If I could get my hands on a schematic, that will be a big help.
>
> Thanks in advance, Brad
>
> Before you type your password, credit card number, etc.,
> be sure there is no active keystroke logger (spyware) in your PC.