HP 5004A, Operating And Service Manual

Page: 21 / 74

M o d e l
Operation
3-12. OPERATOR'S MAINTENANCE
3-13. There are n o operator's maintenance procedures for the
FUSE NOTE
The power line fuse
is
inside the cabinet. If a seems t o
NOT operateas if a fuse were blown refer the unit toqualified main-
tenance personnel.
3-14. OPERATOR SELF-TEST
3-15. The Signature Analyzer has a SELF-TEST (front panel switch) mode which can
b e used t o check the condition of the unit thoroughly. Use the procedure i n Figure 3-2 t o SELF-
TEST a
1. Before applying power to the check that the line (mains) voltage available matches
the label on the rear panel.
THE HAS INTERNALLY-SWITCHABLE OPTIONAL DIF-
FERENT POWER VOLTAGES. REFER T O V
LINE VOLT A G E CHANGE PROCED URE.
2. Remove the grabber connectors from the pod test leads, and connect the pod (START,
STOP, and CLOCK) leads to the matching START, STOP, and CLOCK receptacles on the
front panel.
3.
Connect the data probe to the PROBE TEST receptacle on the front panel.
Push the probe tip point gently and firmly into the PROBE TEST receptacle until the point
i s
held securely.
4. Connect the power cable to the correct power source and set the front panel
as follows for the displays shown:
Four
(See Note)
UP73 then
.Switch Settings
3951 then
START
Displays
UNSTABLE PROBE TIP
STOP CLOCK
or
or
flickers
NOTE
flickers
I n SELF-TEST mode, the four 7-segment displays first have all seven segments
lit dimly,
,
for about 1-second (tests all segments) and then have one of
the signature sets listed above for about 1-second. If the probe RESET
switch
i s
pressed during the SELF-TEST mode, the four 7-segment-digit
displays will show
(all zeroes) except when all segments are dimly
lit
Flickers ex-
cept when
good signa-
ature- i s on
THE HAS INTERNALLY-SWITCHAME
DIFFERENT POWER U N E VOLTAGES. REFER T O
V FOR VOLTAGE CHANCE PROCEDURE.
Flickers
when "ACAY
J
is
on
Flickers ex-
cept when
good
ture
i s
on
Figure 3-2. Operator Self-Test (Continued)
3-5
Flickers
when
i s
on