HP 8340B Manual page 91

A57
Pin
I/O
(1 of 3)
Pin
1
56
2
57
3
58
4
59
5
60
6
61
7
62
8
63
9
64
10
65
11
66
12
67
13
68
14
69
15
70
16
71
17
72
18
73
19
74
Mnemonic
GND PLANE 0V
GND PLANE
HMRKR
LINE TRIG
LRETRACE
LALTSEL
LALTEN
MUTE
8410 TRIG
HMRKR
HSP
LINE TRIG
LIPS
LBX
SIOA
GND PLANE
SIOB
GND PLANE
ADRO
GND PLANE
ADR2
ADR1
ADR4
ADR3
Levels
INSTRUMENT GROUND
0V
TTL
(HIGH TRUE)
LINE FREQ 7 TO 10V
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL
(HIGH TRUE)
TTL
TTL (HIGH TRUE)
TTL
(HIGH TRUE)
LINE FREQ 7 TO 10V
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL (LOW TRUE)
0V
TTL (LOW TRUE)
0V
TTL
0V
TTL
TTL
TTL
TTL
Source
*0
INSTRUMENT GROUND
J
A62-CR1
CATHODE/A62R1
J
J
J
J
J
J
M
A62-CR1
CATHODE/A62R1
XA52P1-36/A62J1-19
•F
XA60P1-15
INSTRUMENT GROUND
XA60P1-16
INSTRUMENT GROUND
XA60P1-17
INSTRUMENT GROUND
XA60P1-18
XA60P1-73
XA60P1-19
XA60P1-74
Destination
•O
XA26P1-43
L
FA62J31-11.25
A62J31-10, 24
A62J31-9, 23
A62J31-8, 22
A62J31-7
XA26P1-43
*IN
L
*NOT USED
M XA59-69
*K
*0
•NOT USED
*0
*K
*0
•K
*K
*K
*K
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