HP 5065A Operating And Service Manual page 167

Model 5065A
Circuit Diagrams, Theory, and Maintenance
Figure 7-18. Top Operating Controls
1. Synthesizer TIME CLOCK SELECTOR thumb­
wheel switch: selects synthesized frequency.
2. Synthesizer TIME SCALE SELECTOR HI-LO
switch: used with thumbwheel switch to select
synthesized frequency.
3. CLOCK SET STOP switch (Option 001 only).
digital clock is stopped when switch is depressed,
starts when released.
4. CLOCK SET FAST switch (Option 001 only):
digital clock second hand is accelerated when
switch is depressed, resumes normal operation
when released.
5. Clock SYNC switch (Option 001 only) Syn­
chronizes digital clock with an external clock
when depressed;
when released.
clock remains synchronized
7
Clock TIME DELAY thumbwheel switch (Option
001 only): selects time delay between an ex­
ternal reference pulse and the internal 1 pulse-
per-second clock pulse. Adjustable in decade
steps from 1 /JS to 1 sec.
0-1 /iSEC TIME DELAY control (Option 001
only): Allows continuous adjustment of clock
pulse delay over any 1 usec range.
Battery fuse: removed momentarily to discon­
nect optional standby battery from circuit for
storage or shipment. Battery will remain dis­
connected after fuse is replaced.
7-53