•
•
Systems
Sequence of
Operation
Conditions
Remarks
•
02E
Manual start line
goes up.
R9BL, R10BL, R31-6
Start to the moving coil
is incidental at this time.
•
The tim e-delay point closes.
•
05E
Pick HD6, take-
up mtr. start.
Time delay point
•
75.10.02
Start take-up mtr.
HD6 pts.
•
•
75.10.01
1/2 power applied
to left stop clutch.
R4ALn/o, R12ALn/c,
R7BL, time delay p t .,
R7AUn/o
With 1/2 power on both
stop clutches, the take-
up m tr. spills tape into
the columns.
•
•
When tape gets in either column (assume the left column), its flapper valve opens,
dropping R9. The manual start line goes down (02E), pushing the left moving pulley
up against its stop capstan, pinching the tape. The tape then goes into the other c o l
umn, dropping RIO. If tape were not pinched by dropping R9, the left column would
take all the tape spilled from both reels.
•
05F
Drop R8, head
cover not down.
R9BU, R10BU, head
cover down m icro
switch
Head cover is down and
tape is in both columns.
•
05E
Drop HD6, take-
up mtr. start.
R8BU
Stop the take-up mtr.
•
06G
Drop HD8; retract
capstans.
R8AUn/o
•
06H
Pick DP2, cap
stan mtr.
R8AUn/c
75.10.02
Start capstan mtr.
DP2 pts.
Capstans start turning.
•
06B
Drop capstan r e
tracting solenoid.
HD8 pts.
Capstans start to extend.
•
05G
Drop R7, caps,
in.
"Caps in" m icroswitch
-
05E
Drop DPI, re
verse field.
R7AU
•
04D
Drop R4, clutch.
R7AL
•
•
27
Содержание 727
Страница 6: ......
Страница 67: ...co Q...
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Страница 69: ...To Fuse 13 48V...
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Страница 73: ...o IC To Fuse 13 48V...
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Страница 93: ...039 0035 FIGURE 1 BIT PO SITIO N S O N TAPE CURRENT GENERATOR FIGURE 3c...
Страница 95: ...w PATH OF TAPE THROUGH MACHINE FIGURE 6...
Страница 97: ...SPLIT IDLER ASSEMBLY FIGURE 8...
Страница 98: ......
Страница 99: ...CLUTCH HOUSING POWDERED IRON AND GRAPHITE MIXTURE FIGURE 10 MAGNETIC CLUTCH...
Страница 100: ...PUSH ROD DIAPHRAGM VACUUM COLUMN SWITCHES FIGURE II...
Страница 101: ...BACKWARD MOTOR CAPSTAN MOTOR FORWARD MOTOR...
Страница 102: ...LATCH FIGURE f3...
Страница 103: ...140 140...
Страница 107: ...FIGURE 18 HEAD ASSEMBLY A DJUSTM ENTS...
Страница 108: ...TAPE C LEA N ER FIG URE 19...
Страница 109: ...VACUUM COLUMN ADJUSTMENT FIG U RE 22...
Страница 110: ...DRIVE MOTOR PULLEY CAPSTAN DRIVE BELT TENSION FIGURE 23 REAR VIEW S...
Страница 113: ...CONTROL UNIT TAPE DRIVE TESTER FIGURE 28 TAPE DRIVE TESTER CO NN EC TIO N S...
Страница 116: ...FIGURE 32 HIGH SPEED REWIND...
Страница 129: ...A Capstan Out 13 16 iS i Aftr _ V 1 im m 1 W F B Capstan Retracted FIGURE 33 CAPSTAN DRIVE M O TO R 727 MODEL III...
Страница 130: ...Right Capstan Motor Bottom View Sensing Switch Assy Capstan Out FIGURE 34 CAPSTAN SEN SIN G SW ITCHES 727 MODEL III...
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