HP 8340B Manual page 97

A59
Pin
I/O <2
of
3)
Pin
20
75
21
76
22
77
23
78
24
79
25
80
26
81
27
82
28
83
29
84
30
85
31
86
32
87
33
88
34
89
35
90
36
91
37
92
Mnemonic
DBO
GND PLANE
DB2
DB1
DB4
DB3
DB6
DB5
DB8
DB7
DB10
DB9
DB12
DB11
DB14
DB13
WSPTM
DB15
WRDAC
WSPAT
WCDAC
LRSP
M5
LMNE
M3
M4
M1
M2
5
MHZ CLK
LSRQ
+20V
+20V
+5.2V
+12V
+5
2V
+5 2V
Levels
TTL
0V
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
(LOW TRUE)
TTL
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL
(LOW TRUE)
TTL
(HIGH TRUE)
TTL
(LOW TRUE)
TTL (HIGH TRUE)
TTL
(HIGH TRUE)
TTL
(HIGH TRUE)
TTL (HIGH TRUE)
TTL
TTL (LOW TRUE)
+20V
+20V
+5.2V
+12V
+5.2V
+5.2V
Source
*D XA60P1-20
INSTRUMENT GROUND
•D XA60P1-21
•D XA60P1-76
•D F XA60P1-22
•D XA60P1-77
•D F XA60P1-23
*D F XA60P1-78
•XA60P1-24
*DFXA60PI-79
"XA60P1 -25
"XA60P1-80
*XA60P1-26
*XA60P1
-81
•XA60P1-27
*XA60P1-82
A
•XA60P1-83
A
A
A
G
E
E
E
E
E
E
XA60P1-34
•I
XA52P1-16, 40
XA52P1-I6, 40
XA52P1-I7, 18,41,42
XA52P1-9,
33
XA52P1-17,18,41,42
XA52P1-17,18,41,42
Destination
*DEG
•J
•DEG
*DEG
•DEG
*DEG
*DG
*DEG
*BDI
•DG
*BEI
*BI
*BEI
*BEI
•BE I
•BE I
XA58P1-28
*BEI
XA58P1-29
XA58P1-84
XA54P1-28
XA58P1-85
XA34P1-1
XA34P1-2
XAE4P1-3
XA34P1-4
XA34P1-5
XA34P1-6
D
*
•NOT
USED
•NOT USED
*J
•NOT USED
*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.
Assembly-Level Service After Service Safety Checks
HP 8340B/41B