HP 4262A User Manual

ISTART /= A23U1 pin 37
STOP ~\_ A23U1 pin 37
CLOCK ./~ A22TP2
+5V ICAU?
Figure 8-19
Digital
Section
Troubleshooting
Procedures
Flow Diagram C
SEE INSIDE
8-37
8-38
Is
Signature
Set
14
YYES
(T
Sygnatyre
get
15)YES
23'3’,3’{
::gg{
52
g:
w;nfi\;s'g‘e,st
fi\om
oK?
CLOCK.S~
A22
TP2
*
)
NO
3
Is
Signature
Set
16
YYES
Register
Qutput
\YES
Troudleshoot
OK?
;
Bus
Stuck?
Stuck
Bus,
NO
fvo
Troubl
t
I
Stk
oy
l
Lc"‘e“‘
Az,
Check
A23U13.
agram
E.
Register
Output
Troupleshoot
Go
to
Flow
Disgram
Bus
Stuck
?
Stuck
Bus.
'
Check
A23US
and
Us,
Is
Signature
at
A23\YES
Is
Signature
at
A22\YES
Ul
pin
6
AASU?
U13
pin
3
00087
Check
A23S1
Troubleshoot
Check
42281
Check
A23U6,
Stuck
Node.
and
Ri2.
Stuck
Node.
and
R22,
A22019
and
Y20,
Indentily
incorrect
Check
A23UL4.
heck
A22U13.
.
-
N
.
-
:gnagxree.
Replace
Figure
8-19.
Digital
Section
Troubleshooting
Procedures,
Components).
...
Flow
Disgram
D.
A23
Board
Diagnostic
Flow
Diagram
(Analog
Section
Contro}
Signals).
Section VIII
Figure 8-19

HP 4262A Specifications

General

Brand	HP
Model	4262A
Category	Measuring Instruments
Language	English