HP 8340b - Page 83

Ml
Pin
I/O
Pin
1
16
2
17
3
18
4
19
5
20
6
21
7
22
8
23
9
24
10
25
11
26
12
27
13
28
14
29
15
30
Mnemonic
GND
GND
HLE2
GND
GND
HUL2
DIVN2
500
KHZ REF
GND
GND
-7
REF
GND
N2 TUNE
RTN
N2 TUNE
GND
GND
GND
GND
-10V
-10V
+20V
+20V
GND
GND
+5.2V
+5.2V
Levels
0V
ov
TTL
(HIGH TRUE)
OV
OV
TTL
(HIGH TRUE)
TTL
(LOW TRUE)
TTL
OV
OV
-7V
OV
OV
0 TO
4-7
VOLTS
OV
OV
OV
OV
-V
-10V
+20V
+20V
OV
OV
+5.2V
+5-2V
Source
A62 STAR GND
A62 STAR GND
XA59P1-53
A62 STAR GND
A62 STAR GND
E
XA42P1-27
XA42P1-9
A62 STAR GND
A62 STAR GND
XA43P1-9
A62
STAR GND
F
D
A62
STAR GND
A62
STAR GND
A62
STAR GND
A62
STAR
GND
XA53P1-12,13,31,32
XA53P1-12,13,31,32
XA52P1-16,
40
XA52P1-16,
40
A62
STAR GND
A62 STAR GND
XA52P1-17,18,41,42
XA52P1-17,18,41,42
Destination
*F
"F
*ABC
*F
*F
XA59P1-107
A
A
•F
*F
F
*F
XA43P1-10
XA43P1-28
•F
*F
*F
•F
*F
"F
*F
•F
•F
•F
*F
*F
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