Model
3580A
See Table 7-2. Notice also
that
the J and K inputs are
not
directly accessible on U7. All the inputs
to
each
of
the
input AND gates must be high before there
is
a correspond-
ing HIGH level given to one
of
the
internal J or K inputs
of
the
flip-flop.
Table 7-2.
Exci~ation
Table for J - K
Flip-Flop.
Ot Ot
+ 1
J K
(Before (After
Clock) Clock)
0
1 1
don't
care
1 0
don't
care
1
1 1
don't
care
0
0
0 0
don't
care
p. Reposition (Only those controls printed in BOLD
require a change from the previous tests.)
ADAPTIVE
SWEEP
.................
OFF
RESOLUTION BANDWIDTH . . . . . .
100
Hz
FREQ. SPAN/DIV
................
2
KHz
SWEEP TIME/DIV . . . . . . . . . . . . . 0.1
SEC
SWEEP MODE
...................
RESET
A3Rl4
.....................
fully
CCW*
q. State 100
1. Clock
Sl,
observe no change
of
state.
2. Check the voltage
at
A3TP5 and A3TP6, it should
be 0 V de ±
.1
V.
3.
Short the
A3
gray jumper
to
A3TP1 and short
A3TP3
to
A3TP4
if
not
already done.
4.
Reposition:
SWEEP
MODE
.................
SING
5. Clock
Sl,
and the logic should
go
to
State 101.
r. State 101
1. Clock
Sl
and observe
no
change
of
state.
2. Check for the following levels:
Collector A3Q4 : < -8 V de
Collector
A3Ql6:
0 V
de±
.1
V
A3TP5: < -7 V de
A3TP6:
OV
de±
.1
V
A3TP8: TTL
LOW
( <
.8
Vdc)
3. Reposition:
ADAPTIVE SWEEP
...............
CW
4. Clock
Sl
once, and the logic should
go
to State
111.
Section VII
1.
Adjust
A3RI4
fully
CCW*.
2. Clock SI and observe no change
of
state.
3. Check for the following levels:
Collector A3Q16: -9.9 V ±
.1
V
A3TP5: <
-7V
A3TP8: TTL
LOW
( < .8 V)
4.
Reposition:
ADAPTIVE SWEEP
..............
CCW
Clock
Sl
and observe no change
of
state.
5.
Adjust A3R14 fully
CCW.
Clock
Sl
and observe
no
change
of
state.
6. Reposition:
ADAPTIVE SWEEP
..............
CW*
Adjust A3R14 fully
CCW*.
Clock
Sl
and observe
no
change
of
state.
7. Adjust A3R14 fully
CW*.
Clock
SI,
and the logic
should go
to
state 110.
t.
State 110
1. Clock
Sl
and observe
no
change
of
state.
2. Remove the test lead between A3TP3 and A3TP4.
The,. voltage
at
A3TP3 should be - .25 V
±
.1
v.
Replace the jumper.
3. Check the following levels:
A3TP6: <
-6
V
A3TP5:
OV
de±
.1
V
Collector
of
A3Ql6:
0 V ±
.1
V.
4. Adjust
Rl4
fully
CCW*.
Clock
Sl
and observe
no
change
of
state.
5. Reposition:
ADAPTIVE SWEEP
..............
CCW
Adjust
Rl4
fully
CW*.
6. Clock
SI,
and the logic should go
to
state 010.
u. State
010
1. Clock
Sl
and observe no change
of
state.
s.
State
111
2. Check for the following levels:
*If
A3R14
has a black casing, set
it
opposite
to
the
setting given.
7-3
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