Front/Rear Switch Lock Procedure; Lock Installation Procedure; Lock Removal Procedure - HP 3456A Operating And Service Manual

B·l. FRONT/REAR SWITCH LOCK PROCEDURE.
8-2. The Front/Rear Switch can be locked in either the
FRONT or REAR position by the installation of a lock.
The following procedures show how to install and
remove the lock.
a. Lock Installation Procedure.
I . Locate the frOnl panel section located at the front
panel's input terminals.
2. Remove the fronl panel section by loosening the
hold down screws located
the panel. (Note: The screws are fastened to (he
panel section and should not be forced oul of the
section.)
3. Remove the switch cap from the Front/Rear
Switch. The cap can be removed by holding the
cap between the index finger and thumb and pull­
ing it away from the switch.
4. Set the Front/Rear Switch to the desired position
(FRONT or REAR).
APPENDIX B
(0
the left and right of
5. locate the locking Cap and rront panel section.
Install the cap into the panel section's slot marked
FRONT and REAR until it snaps in place. Make
sure the arrow on the cap points to the lettering
IQ
which corresponds the Front/Rear Switch posi­
tion.
6. Reinstall the rront panel section into the front
panel and tighten the screws.
b. lock Removal Procedure.
I . Do step a and b of the lock Installation Pro­
cedure.
2. Remove the lock from the front panel section. Do
this by squeezing the cap's locking fingers and
push the lock OUt of the slot. A pair of needlenose
pliars or something similar can be used.
3. locate the cap which was removed from the
Front/Rear Switch when the lock was installed.
Reinstall it on the Front/Rear Switch.
4. Reinstall the front pancl section into the front
panel and lighten the screws.
8·) /8-2