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HP-IB INTERFACE/26067B
STEP 2
STEP .3
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SO
ADJ.
A
31
(ENTER
SO
OR
[~
t
4-1.
INTRODUCTION
This
section
provides
troubleshooting
information
and parts replacement information
for the HP-IB interface.
4- 2. SELF -TEST
The
HP- IB
interface
contains
a
self -test
diagnostic program
which is checks the I/O
ROM, I/O RAM, and and most of the HP-IB
processor operations.
This self -test
diagnostic
is resident
in
the
interface
I/O RAM memory and is initiated
from the printer
Operator
Control Panel by
selecting subtest number
31.
The standard
printer test (self-test) does not perform the I/O
subtest diagnostic (except when the printer is, in
CE mode), the I/O subtest must be selected and
ran separately
• To run the HP-IB I/O subtest:
STEP 1
[TESr
SECTION IV.
MAINTENANCE
If the I/O self -test is initiated and completes
satisfactorily
the
printer
displays
the
printer-ready
status (0 is displayed); if an error is
detected the printer display flashes 50 to indicate
an I/O error. To identify the type of error press
the ENTER key and the I/O self -test error code
number (refer to table 4- 2) should appear in the
display.
If the printer
is looping on the I/O
subtest, then the panel displays a 4 (to indicate
looping). If an error is detected while looping,
looping stops and the I/O error number 50 will
flash in the display.
The I/O subtest performs three routines which
check the I/O
RAM, I/O ROM, and HP-IB
processor, if anyone
of these tests fail an error
number
(code) is displayed
in
the
printer
Operator Control Panel. Also, if any two or all
three
of the
routines
fail, a multiple-error
number is provided. These error numbers for the
subtest routines are listed in table 4- 2 below.
To run the self -test
diagnostic
perform
the
following operations:
FLASHING
fTESTI
Press the ~
key until a 4 appears in the Operator Control Panel display.
- Select the HP-IB I/O subtest number (31) in the printer Operator Control Panel display.
[ENTER!
Press the ~
key to run the subtest.
2
3
4-1
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