HP 8340b - 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