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ategory 4 Failures: Peripheral Device Problems
DIN Keyboard
If a DIN keyboard interface test failure was reported during power-up, there may be a problem
with the +5 V power supply for the DIN keyboard.
Verify that the keyboard is connected properly. (If necessary, use a DIN (f) to mini-DIN (m)
adaptor.) Make sure that the keyboard is compatible with the analyzer. he analyzer should
work with HP mini-DIN keyboards that are U.S. English versions, and most (but not all) IBM
PC/A compatible keyboards.
Connect the keyboard to a computer or another analyzer to see if it is functioning, or try using
a di erent keyboard. If the keyboard works with other instruments, replace the CPU board.
S-232 Printers and Plotters
If an RS-232 interface problem was reported during power-up (with no peripheral connected),
there may be a problem with the RS-232 portion of the Super I/O chip, U607, or its clock, U606.
Replace the CPU board.
Make sure the printer's or plotter's line power is switched ON, that it has paper and pens, that
its pinch wheels are down, etc.. Plotters should not be in VIEW mode. Verify that the RS-232
device has been selected as the hardcopy device by pressing
he rst line on the CR shows the current device selection. he second line shows the
baud rate, parity, and handshake information. If any of this is incorrect, enter the correct
information. Refer to the printer or plotter manual for proper parameters. Refer to your
ser's Guide
analyzer's
ry to make a print or plot from another instrument or a computer to con rm that the
printer/plotter is working. If it is, replace the CPU board.
Centronics (Parallel) Printers and Plotters
If a Centronics interface problem is indicated during power-up (with no peripheral connected),
there may be a problem with the Centronics interface portion of the Super I/O (U607). Replace
the CPU board.
Make sure the printer's or plotter's line power is switched ON, that it has paper and pens,
that its pinch wheels are down, and so forth. Plotters should not be in VIEW mode. Verify
that the Centronics device has been selected as the hardcopy device by pressing
. he rst line on the CR shows the current device selection. he second
elect Copy Port
line should say \Centronics." If this is incorrect, enter the correct information. Refer to your
ser's Guide
analyzer's
If everything seems okay but you still cannot print or plot, remove the CPU board and check
jumper J645, near the HP-IB and parallel connectors at the rear of the board. Make sure the
jumper is in the \RUN" position instead of \ ES ."
ry to make a print or plot from another instrument or a computer to con rm that the
printer/plotter is working. If it is, replace the CPU board.
4-28
T roubleshoot ng and Block D agrams
for more details on hardcopy options.
for more details on hardcopy options.
elect Copy Port
HARDCOPY
5
HARDCOPY
.
5
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