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Touchpad Repair?

Last response: in Laptops & Notebooks
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June 13, 2004 9:36:06 PM

Archived from groups: comp.sys.laptops,sci.electronics.repair (More info?)

I bought a NEC 2430CD with a non-functional touchpad.
I loaded the NEC drivers, but the device manager sez
it's not working or wrong drivers. win98SE

Took it apart. The ribbon is good, got continuity on all
contacts from socket to socket.
There's no mention of the pointing device in the bios.
Got the latest bios upgrade. External mouse works fine.

The way this thing is put together with the processor heat
sink and heat pipe, I can't get at any of the connections while
it's running.

Are there any common faults I should be looking at?
Diagnostic tools that can give me a clue? Can I peek/poke the port
and tell anything?
Thanks,
mike


--
Return address is VALID.
Bunch of stuff For Sale and Wanted at the link below.
Toshiba & Compaq LiIon Batteries, Test Equipment
Yaesu FTV901R Transverter, 30pS pulser
Tektronix Concept Books, spot welding head...
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More about : touchpad repair

Anonymous
a b D Laptop
June 17, 2004 4:42:06 AM

Archived from groups: comp.sys.laptops,sci.electronics.repair (More info?)

mike (spamme0@juno.com) said those last words:

> Are there any common faults I should be looking at?
> Diagnostic tools that can give me a clue? Can I peek/poke the port
> and tell anything?

AIUI those touchpads are no for repair.
Why not just use an external mouse?

[]s
--
© Chaos Master. |"These wounds won't seem to heal
My Evanescence HP is at: | This pain is just too real
http://marreka.no-ip.com | There's just too much that time can't erase"
(most often offline... ) | -- Evanescence, "My Immortal"
June 17, 2004 6:58:52 AM

Archived from groups: comp.sys.laptops,sci.electronics.repair (More info?)

Chaos Master wrote:
> mike (spamme0@juno.com) said those last words:
>
>
>>Are there any common faults I should be looking at?
>>Diagnostic tools that can give me a clue? Can I peek/poke the port
>>and tell anything?
>
>
> AIUI those touchpads are no for repair.

ANYTHING can be repaired. Feasibility is another question.

There's a new wrinkle. When the laptop is cold, the touchpad works fine.
After about a minute, it goes crazy and starts opening windows all over
the place. Reboot and it's dead...not recognized by the system.

Would be interesting to determine if the problem is in the touchpad module
or on the motherboard. Touchpad module I'd try to repair/replace.
Motherboard ain't worth the trouble/risk.

Are the signals from the mouse module the same as the ones that would
come in the external PS/2 port? If so, I could remove the touchpad
module and diagnose it externally.

> Why not just use an external mouse?

Because the laptop has a built-in touchpad.
It's convenient.
It doesn't require another thing to carry along and plug in.
It doesn't have a connector hanging out the back to break when you bump
something...or a wire to catch on that doorknob and drag your laptop to
the ground.
I LIKE the touchpad.
Resale value is much better.
Shall I go on???
mike

>
> []s



--
Return address is VALID.
Bunch of stuff For Sale and Wanted at the link below.
Toshiba & Compaq LiIon Batteries, Test Equipment
Yaesu FTV901R Transverter, 30pS pulser
Tektronix Concept Books, spot welding head...
http://www.geocities.com/SiliconValley/Monitor/4710/
Anonymous
a b D Laptop
June 17, 2004 11:28:27 AM

Archived from groups: comp.sys.laptops,sci.electronics.repair (More info?)

Yeah, but who can stand the blisters?

Cheers
WB
..................

"mike" <spamme0@juno.com> wrote in message news:40D16B5C.9020407@juno.com...
> Chaos Master wrote:
> > mike (spamme0@juno.com) said those last words:
> >
> >
> >>Are there any common faults I should be looking at?
> >>Diagnostic tools that can give me a clue? Can I peek/poke the port
> >>and tell anything?
> >
> >
> > AIUI those touchpads are no for repair.
>
> ANYTHING can be repaired. Feasibility is another question.
>
> There's a new wrinkle. When the laptop is cold, the touchpad works fine.
> After about a minute, it goes crazy and starts opening windows all over
> the place. Reboot and it's dead...not recognized by the system.
>
> Would be interesting to determine if the problem is in the touchpad module
> or on the motherboard. Touchpad module I'd try to repair/replace.
> Motherboard ain't worth the trouble/risk.
>
> Are the signals from the mouse module the same as the ones that would
> come in the external PS/2 port? If so, I could remove the touchpad
> module and diagnose it externally.
>
> > Why not just use an external mouse?
>
> Because the laptop has a built-in touchpad.
> It's convenient.
> It doesn't require another thing to carry along and plug in.
> It doesn't have a connector hanging out the back to break when you bump
> something...or a wire to catch on that doorknob and drag your laptop to
> the ground.
> I LIKE the touchpad.
> Resale value is much better.
> Shall I go on???
> mike
>
> >
> > []s
>
>
>
> --
> Return address is VALID.
> Bunch of stuff For Sale and Wanted at the link below.
> Toshiba & Compaq LiIon Batteries, Test Equipment
> Yaesu FTV901R Transverter, 30pS pulser
> Tektronix Concept Books, spot welding head...
> http://www.geocities.com/SiliconValley/Monitor/4710/
>
!