505 Control Panel Symptom Table
Symptom
Information
Action
The Console, Program, and
The control panel
Perform the following:
Processor lights are all on. interface card failed the
1.
Certain power supply faults can
self-test.
or cause this problem. Measure the
The
Output display contains less
voltage on the following board
than four characters or a character
power pins:
AI-PI pin
3,
AI-P2
that is not hexadecimal.
pin
4,
AI-P2 pin
5,
and AI-P2 pin
6.
Measure the voltage on BI-P4
pin 3 and Bl-P5 pin
5.
See
"435
DC
Voltage Distribution" on
page 4-11. The voltage measured
on all
of
the above pins should be
between
4.5
and
5.5
volts.
If
the
above measured voltages do not
meet criteria, go to
"420 Power
Supply
FRU
Isolation Procedure"
on page 4-6, or continue with step
2.
2.
Exchange the following FRUs, one
at
a time, in this sequence:
a.
AIF2
work station
adapter/control panel interface
card
b.
A1G2 CSP card
c.
Al
Board
3.
Load the system from disk ("330
Loading the
DCP
from Disk" on
page 3-13) or diskette
61
("332
Loading the
DCP
from Diskette"
on page 3-13) to verify the repair.
The control panel does not operate
The control panel and Go to
"507 Control Panel Service
correctly.
the control panel
Check" on page
5-4.
interface card are not
communicating.
The system will
not
function.
Go to
"507 Control Panel Service
Check" on page
5-4.
A system power problem
is
present.
Go
to "507 Control Panel Service
Check" on page
5-4.
5-2
5363
Maintenance Information
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