HP 8340B Manual page 99

A60
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
GNO PLANE
REN
0101
IFC
OI02
NOAC
DI03
NRFD
DI04
DAY
DI05
EOI
DI06
ATN
DI07
SRQ
DI08
LSTP
LIPS
SIOA
GND PLANE
SIOB
GND PLANE
ADRO
GND PLANE
ADR2
ADR1
ADR4
ADR3
Levels
0V
ov
TTL
(LOW TRUE)
TTL
TTL (LOW TRUE)
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL (LOW TRUE)
TTL
(LOW TRUE)
TTL (LOW TRUE)
OV
TTL
(LOW TRUE)
OV
TTL
OV
TTL
TTL
TTL
TTL
Source
INSTRUMENT GROUND
INSTRUMENT GROUND
A62J7-10
D
A62J7-17
D
D
D
D
D
D
D
D
D
D
D
A62J7-19
D
XA59P1-65
XA52P1-36/A62J1-19
-G
INSTRUMENT GROUND
*G
INSTRUMENT GROUND
*G
INSTRUMENT GROUND
•G
*G
*G
•G
Destination
*L
*L
D
A62J7-1
D
A62J7-3
A62J7-15
A62J7-5
A62J7-13
A62J7-7
A62J7-11
A62J7-2
A62J7-9
A62J7-4
A62J7-21
A62J7-6
D
A62J7-8
DA62J1-43
*E
*J
*L
*J
*L
•J
*L
*J
*J
*J
*J
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