Ferrograph 8 Schematic

Page 2

PILIS

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TR293 l'
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TR812 - I 560R 150(0); I I I I I 7 IT _J
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' |R3|7 UNUSED HII7DI R3 1'07 Voltmeter R333 "002 I I
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SIDE 2 I II : CONFIGURATION
(Pin I-W) I I . c
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PE 0 I I IOOK f I IOOK" I. I
SPEED CHANGE I II I
PLrs RELAY I I' I
I ' II R354 I
FAST speeoaov '3-W I II m I
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I q: I'- ------- 0 V ------------ 1 R355 Note I. TRBII .TRGII are mounted on Capston Motor
I IPL/SKIS- _ xflkw _____ _ J;l3-W- _\' 33"er "3 2.Components with circuit relerences 29 l-3SS
REMOIE SPEED CONTROL 1" I I are mounted on Capstan Servo Amplifier Assembly
INPUT FROM REMOTE - I I 3. TR299.TR300 are mounted on Heat Srnk
SOCKEI (SKZBI I L' " fl 4. Designations shown with a number and suffixed
P_C.8. Viewed in-situ I W or 0 indicate Socket pin colour White orOronqe
K J Represents D.C voltages measured wrth a voltmeter of 20,000anor greater 1 I VERNLEDRJUSSSEED -l | BP C/60404/ P2 5- 5.0.T. =S¢lectoo ""
I I I 1 All components marked thus are mounted .n oven
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Page 4

RE ERVE LAMP

: MECHANICAL

MECHANICAL DRAKE

>

BRAKE
I SOLENOID

MOTOR
CONTROL

\___V.-I
A.C, DRIVE

LAMP
CONTROL

ESERVE
LAMP

R
s
E
RETURN
SPRING» WHEEL V
6! ~§ ,9
zERo I
A STOP M NUTES SECONDS CONVERTER
WHNETEL H Q'Ifib ' ME p m PULSE
CA S
v v 5;:ng L.E.D. DISPLAY ORIVE RATE [>
ELAPSED
DATA T0
1 T'ME PEMOTEDISPLAV VOLTAGE
LOGIC A %
j 9)
PULSE v V 3
GENERATOR RUN M k PM; sww OSTET
l i CONTROL cagigR ° CONTROL 133153;?
Run SPEED
WP SPEED
U
3 5 mm 5w ELAPSEE)TIME
I 0 INDICATOR MOTOR
SPEED CONTROL
1
SPOOLINC SERVO 6 MOTOR CONTROL A.C.DR|VE
SPOOLINC SERVO CAPSTAN SERVO
SPOOL SPEED CONTROL
RIV
CONVERTER SPOOL TENSION (FEED MOTORI
PULSE SPOOLING DRIVE
RATE
BACK TENSION
V°U° ELECTRONm
RUN SERVO SMALL --5WlTCHING---
CONVERTER +-o\ LARGE MATRIX
PITUALTSEE SPoOL MOTOR
[::> CONTROL
SPEED VOLTAGE EDIT SOURCE
MRS? TETIUSION w A DRIVE
SLow
SPOOL
cSMALL
AR E __JL__
L O
z a: _
e 5 3%:3 2 ~ 5 E
m I 538 d 5 i 2 :2 * ° 8
.- w o \ a: z '- uJ - D a U 0 .
I A. _ h- : 3 z Lu W
:3 : E's-'5 g 3 g Fig. 512 CONTROL CIRCUITS
W
W K

CONTROL LOGIC CIRCUITS

0/0
2

5 1:
é -
_

WIND

d
U
. . . . . 0
/° /° 2 /° g /° /0 E-
A g A z A 3 A g A ': A 5-
-.
_. 5 STOP 3 RUN 3; RECORD: CANCEL 3 EDIT g

V
REMOTE CONNECTIONS

D

in. o-
}: z
3 -
c-J 3.:

RUN
LAMP

RECORD
LA P
EDIT
LAMP

(Block Diagram)
CONTROL CIRCUITS

REMOTE
COMMAND
.-m
- c
m:
3°...