HP 8340B Manual page 85

A43
Pin
I/O
Pin
1
19
2
20
3
21
4
22
5
23
6
24
7
25
8
26
9
27
10
28
11
29
12
30
13
31
14
32
15
33
16
34
17
35
18
36
Mnemonic
20/30
LCK3
HLE2
RGND
DB1
DBO
DB3
DB2
DB5
DB4
DB7
DB6
DB9
DB8
DB11
DB10
-7VREF
GND
N2 TUNE RTN
N2 TUNE
GND
GND
GND
GND
GND
-10V
-10V
+20V
+20V
GND
GND
+52V
+5.2V
Levels
OTO +10V
TTL
(LOW TRUE)
TH. (HIGH TRUE)
0V
TTL
(LOW TRUE)
TTL(LOW TRUE)
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL
(LOW TRUE)
-7V
0V
0V
0 TO
+7V
0V
0V
0V
0V
0V
-10V
-10V
+20V
+20V
0V
0V
+5.2V
+5.2V
Source
XA58P1-41
XA59P1-108
XA59P1-53
A62 STAR GND
XA60P1-76
XA60P1-20
XA60 1-77
XA60P1-21
XA60P1-78
XA60P1-22
XA60P1-79
XA60P1-23
*
*
*
*
C
A62 STAR GND
XA41P1-8
XA41P1-23
A62 STAR GND
A62 STAR GND
A62 STAR GND
A62 STAR GND
A62 STAR GND
XA53P1-12,13,31,32
XA53P1-12,
13,31,32
XA52P1-16, 40
XA52P1-16, 40
A62 STAR GND
A62 STAR GND
XA52P1-17,18,41,42
XA52P1-17,18,41,42
Destination
E
D
•NOT USED
*H
*D
*D
*D
•D
*D
*D
*D
•D
*D
*D
*D
*D
XA41P1-7
*H
C
BG
*H
*H
*H
*H
•H
•H
"H
•H
•H
•H
•H
•H
•H
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
HP 8340B/41B
Assembly-Level Service
After Service Safety Checks
A-105/A-106