HP 8340B Manual page 100

A60
Pin
I/O (2
of
3)
Pin
20
75
21
76
22
77
23
78
24
79
25
80
26
81
27
82
28
83
29
84
39
85
31
86
32
87
33
88
34
89
35
90
36
91
37
92
Mnemonic
DBO
GND PLANE
DB2
DB1
DB4
DB3
DB6
OB5
OB8
DB7
DB10
DB9
DB12
DB11
DB14
DB13
DB15
5 MHZ CLK
LSRQ
+20V
+20V
+5.2V
+12V
+5.2V
+5.2V
Levels
TTL
0V
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
(LOW TRUE)
+20V
+20V
+5.2V
+12V
+5.2V
+5.2V
Source
•JKI
INSTRUMENT GROUND
•
K
•
K
•
K
• K
"
K
• K
"JKI
•IK
•JKI
•JKL
•JKI
•JKI
•JKL
•JKI
•JKI
B
*
XA52P1-16.40
XA52P1-16.40
XA52P1-17,
18,41,42
XA52P1-9.33
XA52P1-17,
18,41,42
XA52P1-17,
18,41,42
*
*
*
*
k
It
it
fr
It
It
It
It
H
it
*
*
t
C
k
It
ft
*
*
*
*
Destination
K
L
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
F XA59P1-34
NOT USED
NOT USED
L
L
L
L
A
single letter
in
the source or destination column refers to
a
function block on this
assembly schematic.
An asterisk
(*)
denotes multiple sources or destinations; refer to the A62
motherboard wiring list for
a
complete representation of
signal
sources and
destinations.
Assembly-Level Service After Service
Safety Checks
HP 8340B/41B