Control Panel A2 Schematic Diagram - HP 7414A Operating And Service Manual

Section VI
Replacea ble Parts
Model 7414A
3 -20V
6
7
A - 20V (TO J28 ONLY)
N 440 Hz OUTPUT
P
R
'V
-12V
POWER STAGE
W (TO J27
DRIVE (440Hz)
ONLY)
M
S
P/SEC.}
TIMER MARKER INPUT
21 P/MIN.
F POWER GROUND
18 EVENT MARKER INPUT
8
L}
L3
SPEED CHANGE
13 L2
12 LI
T
X
-24V
II
C"AN}
16 CHAN 3
HEAT CIRCUIT
19 CHAN 2
Z CHAN I
U
9 MARKERS HEAT CIRCUIT
10 HEAT CONTROL-RUN (-12V)
15 INTERLOCK (COMMON)(-24V RUN)
14
RUN (-24V)
17 EVENT MRKR. INPUT REMOTE
Y -24V
4 -12V
H
C"AN}
CHAN 3
POSITION
K CHAN 2
L CHAN I
5 -12V (TO J28 ONLY)
2 +12V
B
C"AN}
C CHAN 3
GAIN
D CHAN 2
E CHAN I
SIGNAL GROUND
J20 (REF.)
PIO A3AI (07754-60150)
TRANSFER P. C. BOARD ASS·Y.
....
R22
~2
RI4
/
330 I
2400Hz
-7
5%.1/2W 5"1.,3W
OSC.POWER
-7
F6
I?
TP3
........
~ ' "
iOO'MAT
/
TP2~
1
'"
ELAPSED
a~
I /
RI2
5%, -7
TIME
150 112W
46-
TP5
"ET~B
~
I
9?
? R21
-7
3000K RI3
47
TPI
>-
'"
Hr 120
5
0
~ /
MI >-
440Hz
CRt
W-
05
'"
OSC.
..J
6
/
R23
AMPL.
... ,
7
>-
~4
R20
RII
~
5.6M
ADJ. '!I
270
J
>-
47
' "
CW
R9
5%,IW >-
3
....-t.J
6 /
RIO 500 680
-
-7
IW
TI
TP4
"-
/
"
/
/
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" /
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/ '"
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/
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/ '"
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-7
/ '"
~ /
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/
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/
"-
" /
/ "-
" /
/ -7
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/
/ "-
" /
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~ /
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"
/
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~
/
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/
'"
/
' "
/
RI8
"-
/
1500
)t'
RI6
"-
5%, 220
/
112W -< CR2
5 %
,
"-
----< 1/2W /
RI9
RI5 RI7
'"
330
33K 270
/
' "
5%,1/2W
5%,1/2w
/
'!I
RI
'!I
R2
'!I
R3
'!I
R4
'!I
R7
~
~ ~ ~+- ~
'!I
R5
'!I
R6
'!I
R8
50K 50K 50K 50K
50K
~
50K
~
50K
~
50K
M
CW CW cw CW
tl2W 1/2W 112W 1/2W II2W CW II2W CW
tl2W 112W CW
' "
r---------------------------------~
1
1
I
I
1
1
1
1
1
I
1
I
I
I
I
1
I
1
1
I
1
1
I
1
I
1
1
I
I
I
I
I
I
A2A3 (07754-60140) PREAMPLIFIER CIRCUIT
L
~~~~~~~ ~
-------------
J25
- I -
/
6
)
"
7
/
4
"
/
,,10
"
/
,,~2
"
/
(8
"
/
(17
"
/
'18
"
1
3
/
"
19
13
9
I
kl '
/
21
"
RI~F
R2~F R3~F
R 1 P
500 500 ,500 500
II2W 1/2W 1/2W 1/2W
14
/
W
"
/
15
"
/
16
~
"
" II
/
2
"
.....
-
A2A2 (07754-60130) HEAT CONTROl
J25
r
6
~t qJ ~
E¥J
~ ~
I
0IF
I
~ ~
I
EVr T
I
1
I I I I I '~'
-eC6'.II
I
It-
I I
r
I
1
I
I I I
1"'r-.47
I
10
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-j1t-
-jlt-
-jlt-
-+
1
1t 11:
~1~
l
-
I
-,-
- I -
.- I-
·-1-
._,-
~
r·
r·
~2
-+
l
I I
1-
...... 1
, +--
1t:
lI:-
It:
_~1t- ~ ~7r-
~
...
~
.
~
...
+ •
......1-
B
~-:llt
~
E
CR4 CR3 CR2 CRI
)
~
":l
~
..--- k
lo
~
...
L4
I
L3
L2
"A
5
LI
/3
R9 RIO R7 R8
27 27 27 27
I
-
-{K
_,-C4 _C5
_ C2
_C3
R3 R4 R5 R6
"'r".05
T·
05
....... 05 T·
05
I
470 270 100 27
CI
,!'
.05
RI
" F
150
5'%..1/2W
2
7
" 6
8
( L
---
I J26
________________________________________
~ L _ ~ ~ ~ ~ ~ ~ ~ ~
- - - - - - - 5 2
CHART SPEED MM/SEC MARKERS
I
------}-------------------------+-------,
\ I \
I
Figure 6-4. Control Panel A2 Schematic Diagram
6-20 07414-1