Field Service Procedure – Replacement PCU Kit, ST88, ST94 & ST144
Page
3
of
22
Document No
137738 Rev A
Copyright © Sea Tel, Inc 2012 - The information contained in this document is proprietary to Sea
Tel, Inc. This document may not be reproduced or distributed in any form without prior written
consent of Sea Tel, Inc.
6.
PCU
Status
LED
Diagnostics
A
status
LED
is
installed
on
the
PCU
Motherboard
and
can
be
viewed
from
the
underside
of
the
PCU
assembly.
The
different
colors
statuses
indicate...
Solid
Green
PCU
status
is
good.
Solid
Red
PCU
fault
detection.
Operational
software
will
never
leave
the
status
LED
solid
RED.
Reprogram
the
PCU
software.
Replace
the
motherboard
PCB.
Solid
Orange
Software
update
to
the
PCU
motherboard
is
in
process.
Blinking
Orange
Software
update
to
the
motor
driver
enclosure
(through
the
PCU)
is
in
process.
Blinking
Red
Communication
error
with
the
motor
driver
enclosure.
Check
the
MDE
status
LEDs.
If
MDE
is
good,
check
to
assure
that
the
harness
connections
are
seated
properly.
Check
harness
connections
(pin
‐
pin,
wire
‐
wire
and
wire
‐
ground)
for
good
continuity.
Replace
main
PCB.
Replace
MDE.
7.
Pedestal
Error
(Error
8):
7.1.
Decoding
a
Pedestal
Error
(Error
8).
When
the
DAC
displays
a
pedestal
error
enter
into
the
remote
command
window
and
input
“S0000”
then
press
enter
twice.
The
error
code
will
now
be
displayed
in
the
Remote
Monitor
screen.
Decode
the
4
th
character
of
the
error
code
from
the
below
table...
@
None
K
Ref
+
LV
+
CL
V
Stab
Limit
+
AZ
+
LV
A
CL
L
Ref
+
AZ
W
Stab
Limit
+
AZ
+
LV
+
CL
B
LV
M
Ref
+
AZ
+
CL
X
Stab
Limit
+
Ref
C
CL
+
LV
N
Ref
+
AZ
+
LV
Y
Stab
Limit
+
Ref
+
CL
D
AZ
O
Ref
+
AZ
+
LV
+
CL
Z
Stab
Limit
+
Ref
+
LV
E
AZ
+
CL
P
Stab
Limit
[
Stab
Limit
+
Ref
+
LV
+
CL
F
AZ
+
LV
Q
Stab
Limit
+
CL
\
Stab
Limit
+
Ref
+
AZ
G
AZ
+
LV
+
CL
R
Stab
Limit
+
LV
]
Stab
Limit
+
Ref
+
AZ
+
CL
H
Ref
S
Stab
Limit
+
CL
+
LV
^
Stab
Limit
+
Ref
+
AZ
+
LV
I
Ref
+
CL
T
Stab
Limit
+
AZ
_
Stab
Limit
+
Ref
+
AZ
+
LV
+
CL
J
Ref
+
LV
U
Stab
Limit
+
AZ
+
CL
Summary of Contents for ST144
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