HP 8340B Manual page 92

A57
Pin
I/O (3 of
3)
Pin
38
93
39
94
40
95
41
96
42
97
43
98
44
99
45
100
46
101
47
102
48
103
49
104
50
105
51
106
52
107
53
108
54
109
55
110
Mnemonic
-15V
-5.2V
-10V
-10V
GND PLANE
NEG BLANK
MKR RMP
RFSWP
Z-AXIS BLANK
FPNLSWP
RPNLSWP
FPNLSWP RTN
RGND
RPNLSWP RTN
RGND
RGND
HULH
HRFON
EXT TRIG
LSSP
PEN LIFT
LSRQ
PEN LIFT RTN
GND PLANE
GND PLANE
Levels
-15V
-5,2V
-10V
-10V
0V
0,
+5V
0 TO 10V SWEEP
10V/SWEEP
+5V/-5V
10V/SWEEP
10V/SWEEP
0V
0V
0V
0V
0V
TTL (HIGH TRUE)
TTL
(HIGH TRUE)
EXTERNAL SOURCE LEVEL
TTL (LOW TRUE)
CLAMP AT 56V
TTL (LOW TRUE)
0V
0V
0V
Source
XA56P1-15, 30
XA53P1-18, 36
XA53P1-12,13,31,32
XA53P1-12,13,31,32
INSTRUMENT
GROUND
N
XA58P1-96
H
N
H
H
H
STAR GND POINT
H
STAR GND POINT
STAR GND POINT
A62J19-16
J
A62J31-4,18
M
J
*
J
INSTRUMENT GROUND
INSTRUMENT GROUND
Destination
*0
*0
•NOT USED
*NOT USED
*0
A62J31-1, 15
DG
XA27P1-17
A62J31-2,16
A62J9-SMC CENTER
A62J8-SMC CENTER
*0
*
"0
*0
*NOT USED
*
L A62J31-4, 18
A62J31-5,19
A62J31-6, 20
*NOT USED
A62J31-21
*0
*0
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-119/A-120