HP 8340b - Page 65

A21
Pin
I/O
Pin
1
19
0
20
3
21
4
22
5
23
6
24
7
25
8
26
9
27
10
28
11
29
12
30
13
31
14
32
15
33
16
34
17
35
18
36
Mnemonic
HADCEN
BIAS
S/H
PULSE
LMODHLD
DET
S/H
+
DET
S/H
-
+20V
+20V
+5
2V
+5
2V
HLBW
-10V
-10V
GND
GND
HPLSEN
HRFON
LHET
LOPMOD DRY
PLS IN RTN
PMOD RTN
PLS IN
HIPMOD DRV
Levels
TTL
(HIGH TRUE)
TTL
TTL
+45V/+3-5V
+35V/+4..5V
+20V
+20V
+5
2V
+5
2V
TTL
(HIGH TRUE)
-10V
-10V
0V
0V
TTL
(HIGH TRUE)
TTL
(HIGH
TRUE)
TTL
(LOW
TRUE)
CURRENT
SOURCE
0V
PV
TTL
CURRENT
TO PIN DIODE
Source
D
A
E
F
F
XA52P1-16.40
XA52P1-16,
40
XA52P1-17,
18,41,42
XA52P1-17,18,41,42
XA26P1-33
XA53P1-12,13,31,32
XA53P1-12,
13,31,32
A62 STAR GND
A62
STAR GND
XA26P1-2
XA57P1-105
XA27P1-20
C
B
A62J26-SMC
CENTER
C
Destination
XA27P1-8
XA22P1-8
XA26P1-1
XA25P1-2
XA25P1-24
*G
•G
*G
*G
XA26P1-33
*G
•G
'G
*G
•A
*AC
•C
A62J10-SMC
CENTER
•A
*A
A
A62J25-SMC
CENTER
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
Change
5
Assembly-Level
Service
After
Service
Safety
Checks