HP 8340b - Page 72

A29
Pin
I/O
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Mnemonic
-10V
-40V
GND
GND
+20V
GND
HULR
GND
-5.2V
GND
GND
TUNE
GROUND
TUNE VOLTAGE
GND
GND
Levels
-10V
-40V
0V
0V
+20V
0V
TTL (HIGH
TRUE)
0V
-52V
0V
0V
0V
0V
0V
Source
XA34P2-8, 9
XA34P2-6,
7
INSTRUMENT GROUND
INSTRUMENT GROUND
XA34P2-2, 3
INSTRUMENT GROUND
J
INSTRUMENT GROUND
XA34P2-12, 13
INSTRUMENT GROUND
INSTRUMENT GROUND
E
E
INSTRUMENT
GROUND
INSTRUMENT GROUND
Destination
•K
*K
•K
*K
*K
*K
XA34PX-14
•K
*K
*K
*K
XA30P1-12
XA30P1-14
*K
*K
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 A34
Reference
Loop
-
M/N
Motherboard
Schematic
Diagram
for
a
complete
representation
of
signal
sources
and
destinations.
HP
8340B/41B
Assembly-Level
Service
After
Service Safety Checks