HP 3490A - Page 235

r
-:r
ASSEMBLY
(O349O-66505)
,l
lFUNcroNl
l-
fl
FUNCTION
;UNCTION
BIT
8A
AC
0c
TEST
LH
HL
LL
HH
lFaN6E-l
s4
(SHOWN
WITH AUTO
SELECTEO)
I
=HIGH.
+4.OV
OR GREATER
O=LOw.O
TO
+O.5V
Ft
tcTtoN
s3
/A
/-\'
fl
o4 I
-\1,
(VIEWEO
FROM
LEFT)
11
Function,
Range,
and
Sample
RANGE
RANGE
BII
CBA
o.r
v
(Ko)
.
tv
(Ko)
rov
(Ko)
roov
(Ko)
rooov
(Ko)
r0.000
Kn
HHL
HLH
HLL
LHH
LHL
LLH
l=HIGH=
+4.OV
OR GREATER
o=Low
=o
To +o.5v
NOTES.
I. I F TROUELE
IS ISOLATED
TO THE 45
.
BOARD.
CHECK HIGH AND
LOW LEVELS.
r.r
- err
-
plc-xlno
aOM
pÄNt-
34904-
D-28t4
Figure
7-28.
Schematic
Diagram,
Rate
Switches.
A5.
SAMPLE
RATE BIT
CBA
DELAY
(STD)
I
HOLD
6
7
I
9 FAST
HHH
HHH
HHL
HLH
HLL
LHH
LHL
LLH
LLL
i
H
d
H
H
H
H
H
'. os
t.2 s
ts
SOOhS
6OOmS
40OmS
2OOhS
o
O.LOW=O
TO
+O.5V
R6
2.2K
7-ss
17
-s6
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