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Thread: thinkpad t20 just won't boot :(




thinkpad t20 just won't boot :(
user name
2006-06-07 09:48:19

i have news! between the serial port and the tv out (top lefthand
side in the pic called "light path diagnostics thinkpad") is a 2
color led that is green for just a second as you push the power
button, then it turns orange and flashs 11 times.

i've searched for diagnostic led led post led beep code but just no
joy, just light path diagnostics but thats for ibm servers.
can anybody decode the led?

thanks for looking

--- In Laptop_Repairyahoogroups.com, "josh" <j2074...> wrote:
&gt;
> thanks for the quick and insightful reply, but it sounds like your
> level is a little higher then mine, i'm not sure what a DVM is.
>
> just had a look on ebay, but due to everyone hoping for around
> US$40.00 shipping, not such a good thing.
&gt;
> cheers
&gt;
>
>
>
> --- In Laptop_Repairyahoogroups.com, Ardell Faul <ardell> wrote:
&gt; >
> > The black things in the area are inductors. There are no relays
> in this
> > unit that I am aware of. You probably have a shorted transistor
> or such
> > in the voltage regulator circuit, which those inductors are part
> of, and
> > it may be repeatedly trying to get the circuit up and running.
If
> you
> > know how to troubleshoot Field Effect Transistors with a DVM, you
> may be
> > able to find a shorted one and replace it. I occassionally am
> able to
> > repair motherboards with this type of problem, but usually I just
> > replace the whole motherboard with one from another junk unit.
> Look on
> > Ebay.
>; >
> > Ardell Faul
> > Laptop Computer & Monitor Repair
&gt; > 10816 E. Mission Ave.,
>; > Spokane Valley, Wa. 99206
>; > ardell
> > 509-891-5188
> >
> >
> >
> > josh wrote:
&gt; >
> > >greetings from sydney Australia.
> > >
> > >I have a thinkpad t20 type 2647-46A, the thing just won't boot.
>; > >symptoms are just the same on battrey or AC,
> > >you hit the power buttion the hard disc activity lights for just
> a
> > >second, the nothing.
> > >
> > >having opened the t20 up, there is also a very faint click sound
> > >coming from 1 0f the 3 what i'm guessing are relays ( the pics
is
> > >named "ibm thinkpad t20 type 2647-46A 1 " and can be seen on
this
> very
> > >site under Photos> Photo Albums > ibm thinkpad t20 > ibm
> thinkpad t20
> > >type 2647-46A 1.
> > >i have marked the area where the sound is coming from with a red
> > >square, are thses relays? has 1 blown?
&gt; > >and best of all how do i fix it?
> > >
> > >thanks for your help
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >Yahoo! Groups Links
>; > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
>

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