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Model 7414A
Section VI
Replaceable Parts
SHAFT POSITION
TRANSDUCER
o TO MOUNTING NUT
F
\.-~----DRIVE
COIL START
6
DRIVE COIL RETURN
D )
STYLUS HEAT
4 )
(9-2)
RETURN
B)
(6)
+12V
:
)~n7
'9-0
:::~~~:T::E:::::o
A
OSCILLATOR OUT
3
'9-1
SIGNAL GROUND
GALVANOMETER
CABLE AII-AI4WI
(FOR REF. ONLY)
NOTES'
I. UNLESS NOTED, RESISTANCE
IS IN OHMS,I/4W,5%
~R;NSFE;-I
I
BOARD
I
A3Al
:
r~~'~~'
I
JI5, JI6,
GALVANOMETER
I
JI8,JI9
r-------~
I
8
>--.~
F
)---++---"~
I
I )
(5
1
2]
,
I
COIL
:
I
' I
r
A
6>--+--+--''''-'''''-72
>--
(F,
I
W
I
I
I
I
I
I
I
:
I
I
>-_-+-+-,(",-9-....::2"-7) 4
>---
---«
I
~
1
4
' : HEATER:
~
)>-----7)
I I
0
~----1H--=<-:l
3
>---.
(
1
~
+--.J
10
1
I
I
I
JI7-K ---711
~~:!4+-""""-7
8
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.----,
I
JI7-L
--71
A
9
>200kHl'-----
---<<!
~
I
i riB
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CRI
L
lIT!
L
1 r ? I C [
I
SHIELD
I
SIG
I
~
B
I
GND
13
I ~~~~~S~~~~~Y
CR2
, \
I
I
0715A-60020
I
r
1
2
(7)
, ROTOR TOP
~
PLATE
L~
__ ..J
I I
J29
I
TRANSDUCER LOWER PC ASSY.
I
I
07154-t'.001O
PIO
All-AI4
~NOT~LD
SERVICEABLE)
_..J
HEAT
C3
P
~
\SIGNAL
~
(
POSITION
R32
27K
R24
1.8K
1/2W
+12V
C8
.01
,~"I.
C6
.056
R37
10M
R39
22K
R38
681K
1/2W
R36
45.3K
I/IW.0.25-/.
R34
IK
CR5
SI
RII
10K
R43
100
R42
390
1/2.,5-/.
R4
68K
all
R40
100
6
3
B
-12V
~1~w~--'IrRAN~~lr~:------------------------
1
- - - - - 1
SUPPLY A3
I
BOARD
CI
+
I
(REF.)
I
ASSY. A3Al
+12V
60
RI9
SIGNAL FROM
100
PREAMPLIFIER
~
I )
P6 (
I
;JJ29
~~N~H~~~~~~
I
~J7 I
R9
SEE FIG.6-12)
~I
J31
P7
I
J30
20K
JUMPER
CABLE
I )
J32
(
d
J 30
07754-
I
RIO
60450
L
-JI
17.8K
r;:REAMPL;E;- -
-
-
-
-
-
-
-
~2~
I
I
POWER SUPPLY
+ p £ 2 V
I
E
I
ASSY. A2A3
e:
II
f-,
C
IGNAL
(PINS DEPEND
I . '\1
R2
I
ON CHANNEL)
POSGION
GAIN
=~.4K
7;..3K
I
0
I
1/1.,1-/.
L
-=I~
..:J
I(
(
0
f--~-pJliI
Yr--:+-""4RW5~\ooo3K""~
_-,1
~.~~"I.
~~~SUpm~(RE~lr---
I
JIO
I
i---'X~I~IB(
)01
II_~:
I
I
I
1~8~13(
)41
I
I
A3Kl
I
1
I
I
LR~N
-
-.J
1
CONNECTOR
I
I
1
BOARD
I
..J
A3Ul
-J
L
L
I
- - - - - - - - - - - - - - - , 1
f";EGULATOR/OSCILLATOR
+ L
5V ,
,
I
ASSY. A8 (60Hz)
I
I
OR A9 (50Hz) (REF.)
/
R29
.
I
I
. ' "
7
I
L
....JI
,
I
I
I
I
I
I
R41
{--...:2:..:4..:,.V_.......1 . ... 5,..0......- - - - - - - - - '
I
2
1
L
..JI
tp
I
C4
R33
DRIVER AMPLIFIER
.056
10K
I
ASSY.07154-60170
~4.A:.:..A~~
•
~
...:.I~
~
-.J
Figure
6-14.
Driver Amplifier A4, A5, A6, A7; Schematic Diagram
07414-1
6-29
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