Lenovo ThinkPad R50 Hardware Maintenance Manual (HMM) - Page 39

Diagnostics

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Checkout guide 3. Authenticating the digital signature takes about 15 seconds; then the ThinkPad computer will reboot into PC-DOS. 4. A batch file automatically starts up to prompt you through the process of creating diskettes. You are notified of how many diskettes you will need. a. You are prompted to insert each diskette in sequence. b. Typically, all you need to do is to press the Enter key for the floppy drive; the system then formats and creates the diskette. c. Each diskette is erased and formatted with the PC-Doctor for DOS boot image. 5. As soon as all the diskettes have been created, the ThinkPad computer reboots. You then receive a message asking you to remove the last diskette from the drive or, if you want to run the diagnostics, to insert the first diskette. To run the test, do as follows: Note: In the following procedure, you can select an item not only with the arrow keys, but also with the TrackPoint pointer. Instead of pressing Enter, click the left button. 1. Insert the PC-Doctor disk into the diskette drive; then power on the computer. If the computer cannot be powered on, go to "Power system checkout" on page 37, and check the power sources. If an error code appears, go to "Symptom-to-FRU index" on page 54. On the first screen, select the model and press Enter. Follow the instructions on the screen. 2. The main panel of PC-Doctor appears. 3. Select Diagnostics with the arrow keys, and press Enter. A pull-down menu appears. (Its exact form depends on the model.) Note: PC-Doctor menu does not mean the formal support device list. Some unsupported device names may appear in the PC-Doctor menu. General descriptions 35

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3.
Authenticating
the
digital
signature
takes
about
15
seconds;
then
the
ThinkPad
computer
will
reboot
into
PC-DOS.
4.
A
batch
file
automatically
starts
up
to
prompt
you
through
the
process
of
creating
diskettes.
You
are
notified
of
how
many
diskettes
you
will
need.
a.
You
are
prompted
to
insert
each
diskette
in
sequence.
b.
Typically,
all
you
need
to
do
is
to
press
the
Enter
key
for
the
floppy
drive;
the
system
then
formats
and
creates
the
diskette.
c.
Each
diskette
is
erased
and
formatted
with
the
PC-Doctor
for
DOS
boot
image.
5.
As
soon
as
all
the
diskettes
have
been
created,
the
ThinkPad
computer
reboots.
You
then
receive
a
message
asking
you
to
remove
the
last
diskette
from
the
drive
or,
if
you
want
to
run
the
diagnostics,
to
insert
the
first
diskette.
To
run
the
test,
do
as
follows:
Note:
In
the
following
procedure,
you
can
select
an
item
not
only
with
the
arrow
keys,
but
also
with
the
TrackPoint
pointer.
Instead
of
pressing
Enter,
click
the
left
button.
1.
Insert
the
PC-Doctor
disk
into
the
diskette
drive;
then
power
on
the
computer.
If
the
computer
cannot
be
powered
on,
go
to
“Power
system
checkout”
on
page
37,
and
check
the
power
sources.
If
an
error
code
appears,
go
to
“Symptom-to-FRU
index”
on
page
54.
On
the
first
screen,
select
the
model
and
press
Enter.
Follow
the
instructions
on
the
screen.
2.
The
main
panel
of
PC-Doctor
appears.
3.
Select
Diagnostics
with
the
arrow
keys,
and
press
Enter.
A
pull-down
menu
appears.
(Its
exact
form
depends
on
the
model.)
Note:
PC-Doctor
menu
does
not
mean
the
formal
support
device
list.
Some
unsupported
device
names
may
appear
in
the
PC-Doctor
menu.
Checkout
guide
General
descriptions
35