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HP-IB Systems
If an HP-IB interface problem is indicated during power-up (with nothing connected to the
HP-IB port), there may be a problem with the HP-IB controller chip (U524) or the interface
chips (U525, U526). Replace the CPU board.
Check the analyzer's HP-IB functions with a known working peripheral such as a plotter,
printer, or disk drive. Press
to allow
HP-IB
ystem Controller
PRESET
SYSTEM OPTIONS
5
5
the analyzer to control the peripheral. Check the HP-IB address on the peripheral, then set the
analyzer to recognize this address by following the instructions in the next section.
HP-IB Problems with Printers or Plotters
For HP-IB printers or plotters, press
and select the appropriate
elect Copy Port
HARDCOPY
5
HP-IB device. he currently selected device is shown on the rst line of the display, and for
HP-IB devices, the HP-IB address is shown on the second line.
o change the address, press
and enter the correct value (from 0 to 30).
Print/Plot Address
Note
he default HP-IB address expected by the analyzer for both printers and
plotters is 5, but the factory default address of most printers is 1.
Make sure the printer or plotter has line power switched on, that it has paper and pens,
that its pinch wheels are down, and so forth. Plotters should not be in VIEW mode. Press
to do a print or plot. If the result is not a copy of the display (as selected
Prior Menu
tart
by
), suspect HP-IB problems in the analyzer.
Define Hardcopy
General Checks for HP-IB Systems
If the analyzer does not respond to an external controller, verify that the analyzer is in
talker/listener mode by pressing
. he analyzer cannot respond if it is
HP-IB
SYSTEM OPTIONS
5
in system-controller mode.
Make sure the controller is using the proper select code and addresses.
ser's Guide
Be sure HP-IB cable length limits are not exceeded. See your analyzer's
for more
detailed information.
Programmer's Guide
Refer to the \HP-IB Programming" chapter of the
to troubleshoot
programming problems. Replace the CPU board if the analyzer appears to have an HP-IB
problem.
LAN Troubleshooting (Option 1F7)
Problems with the LAN network can be dicult to solve. Software and protocol problems can
make it dicult to determine if the analyzer's hardware is working properly or if there is some
problem with the LAN or cabling. he purpose of this section is to determine if the analyzer's
hardware is functioning properly. While the turn-on self-test veri es some LAN hardware
functionality, it is limited to internal testing only. Incorrect IP addresses will prevent proper
operation. Improper subnet masks may allow only one-way communication, while improper
gateway addresses may exclude outside LAN access.
T roubleshoot ng and Block D agrams
4-29
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