Step
1522-7
1.
Plug
the
drawer
power
cable
into
another
outlet
on
the
power
distribution
bus.
2.
Turn
on
power
to
the
drawer.
Did
the
drawer
power
light
come
on
and
stay
on?
NO
Go
to
“Step
1522-8.”
YES
The
first
outlet
is
defective.
Use
the
second
outlet,
or
exchange
the
power
distribution
bus,
and
then
go
to
“Step
1522-10.”
Step
1522-8
1.
Plug
the
power
cable
of
another
device
or
drawer
into
the
same
outlet.
2.
Turn
on
power
to
the
device
or
drawer.
The
green
light
near
the
ac
plug
on
the
rear
of
some
drawers
indicates
only
that
power
is
reaching
the
drawer
and
not
that
the
power
supply
is
operating.
Did
the
drawer
power
light
come
on
and
stay
on
or
are
the
fans
operating?
NO
Exchange
the
power
distribution
bus,
and
then
go
to
“Step
1522-10.”
YES
The
problem
is
probably
located
in
the
original
drawer.
Go
to
“MAP
1520:
DC
Power
Distribution
Panel
-
Power
MAP”
on
page
17
in
the
service
guide
for
the
system
installed
in
your
rack.
Step
1522-9
1.
Plug
the
CPU
drawer
power
cable
into
another
outlet
on
the
power
distribution
bus.
2.
Set
the
power
button
to
on
(button
pushed
in).
Did
the
circuit
breaker
go
to
the
Off
position
(pop
out)?
NO
The
first
circuit
breaker
is
probably
defective.
Use
the
second
outlet,
or
exchange
the
power
distribution
bus,
and
then
go
to
“Step
1522-10.”
YES
The
drawer
is
overloading
the
circuit
breaker.
Exchange
the
CPU
drawer
power
cable
or
power
supply.
Then
go
to
“Step
1522-10.”
Step
1522-10
1.
Connect
all
drawer
power
cables
to
their
original
power
outlets
on
the
power
distribution
bus.
2.
This
completes
the
repair.
Go
to
″
MAP
0410:
Repair
Checkout
″
in
the
Diagnostic
Information
for
Multiple
Bus
Systems
.
Chapter
2.
Maintenance
Analysis
Procedures
23
Summary of Contents for THINKPAD T42 -
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