HP 53181A - Page 185

Chapter 4 Retrofitting Options
To Retrofit A6 High Stability Timebase Assembly (Options 001, 010, and
012)
Assembly-Level Service Guide 4-13
4
Figure 4-2. High Stability Timebase Retrofitting (Option 001, 010, 012)
10 Re-install the cover by performing the cover removal procedure,
in Chapter 3 of this guide, in reverse.
This completes A6 High Stability Timebase Assembly retrofit procedure.
11 Perform the appropriate timebase calibration procedure as found
on page 2-23 and page 2-24.
H2
H2
A6 High Stability
Timebase Assembly
H2
1
Ext
Arm
Ref
In
I
N
P
U
T
S
!
AC LINE:
10 MHz Out
60 VA
100 - 120 VAC
200 - 240 VAC
50/60/400 Hz
50/60 Hz
OPTIONS
001 MS Oven
010 HS Oven
SERIAL PLATE
To Configure:
Hold Recall during turn-on.
Osc Adjust
RS - 232
ISM 1-A
92
FOR LABORATORY USE BY
QUALIFIED PERSONNEL
FOUR USAGE EN LABORATOIRE
PAR PERSONNEL QUALIFIE
HP-IB
Talk Only
2
3
J9
P1
Jumper cap
H7
H7
J2