HP 8340b - Page 63

A19
Pin
I/O
Pin
1
13
2
14
3
15
4
16
5
17
6
18
7
19
8
20
9
21
10
22
11
23
12
24
Mnemonic
+20V
AC1
+20V
AC1
+20V
AC2
+20V
AC2
-10VAC1
-10VAC1
-10VAC1
-10VAC1
-10VAC2
-10VAC2
-10VAC2
-10VAC2
-10V
RETURN
-10V
RETURN
-10V
RETURN
-10V
RETURN
+20V
UNPEG
+20V
UNPEG
GND
GND
-10V
UNPEG
-10V
UNPEG
-10V
UNPEG
-10V
UNPEG
Levels
+20
VAC
+20
VAC
+20
VAC
+20
VAC
-10
VAC
-10
VAC
-10
VAC
-10
VAC
-10
VAC
-10
VAC
-10
VAC
-10
VAC
+
6.4V
AT
13.3
GHZ
+6.4V
AT
133
GHZ
+6.4V
AT
13.3
GHZ
+
6.4V
AT
133
GHZ
+31.2V
+31
2V
0V
0V
-10V
-10V
-10V
-10V
Source
A62 LUG
(2)
A62 LUG
(2)
A62 LUG
(2)
A62 LUG
(2)
A62 LUG
(6)
A62 LUG
(6)
A62 LUG
(6)
A62
LUG
(6)
A62 LUG
(6)
A62
LUG
(6)
A62 LUG
(6)
A62 LUG
(6)
XA53P1-2,
20
XA53P1-2,
20
XA53P1-2,
20
XA53P1-2,
20
XA35P1-7,
25
XA35P1-7,
25
A62 STAR
GND
A62 STAR GND
BC
BC
BC
BC
Destination
*A
*A
*A
*A
*B
*B
*B
*B
*6
•B
*B
*B
BC
BC
BC
BC
*A
*A
*A
*A
XA53P1-27,
28
XA53P1-27,
28
XA53P1-27,
28
XA53P1-27, 28
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-61/A-62