PCC D3400 - Page 103

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t UPPER SECTOR/INDEX SENS~R - - ,
:
TOP LOAD MODELS:
I MAGNETIC TRANSDUCER
I FRONT LOAD MODELS:
t PHOTOELECTRIC SENSOR
I
I
I
L
L _________ _
___ .J
r-------------
t LOWER PHASE/INDEX SENSOR '
I I
t
L_
(MAGNETIC TRANSDUCER)
I
I
I
I
_ ___ .J
UPPER SENSOR
DETECTOR
LOWER SENSOR
DETECTOR
r-----------------------~ DEMUX.SECTOR
OR INDEX ONLY
UPPER TIME-DEMULTIPLEXER
CLOCK SIGNAL-.J
1 t
PROGRAMMING ARRAY
~
DEMUX. INDEX
ELECTRONIC
SECTOR
INDEX
LOWER TIME-DEMULTIPLEXER PHASE
~ ~
f ,
THRESHOLD CONTROL
PROGRAMMING
ARRAY
DRIVE MOTOR
ENABLE(LDMEG)------~
CLOCK SIGNAL (LC08F)-
PORTION OF
SECTORING
SELECTION
PROGRAMMING
ARRAY
PORTION OF
SECTORING
SELECTION
PROGRAMMING
ARRAY
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------------------------~l----
(LPLFF) TO SPINDLE SPEED CONTROL
~
PHASE LOCK
FLIP-FLOP
, ,
L
~
FILTER
SECTOR
~
PHASE
COUNTDOWN
COMPARATOR
--------
r--+-
DIVIDER
~
FLIP-FLOP
~
FILTER
PROGRAMMING
ARRAY
~
SUM AND
DIFFERENCE
~
AMPLIFIER
~
, ,
VOLTAGE
CONTROLLED
OSCILLATOR
VCODIVIDER
FLIP-FLOP
SECTOR PLL COUNTDOWN
COUNTER
f t
COUNTDOWN
PROGRAMMING
INDEX
-
~______________ _ _ __ ______ ~SE~C~T~O~R~P~H~A~S~E~L~O~C~K~L~O~O~P __
-------------------~
c
SECTOR
UPPER
SYNCHRONIZER
LOWER
SYNCHRONIZER
UPPER SECTOR
COUNTDOWN COUNTER
t t
UPPER ELECTRONIC
SECTOR PROGRAMMING
LOWER SECTOR
COUNTDOWN COUNTER
f t
LOWER ELECTRONIC
SECTOR PROGRAMMING
UPPER SECTOR
PULSE FORMER
LOWER SECTOR
PULSE FORMER
UPPER INDEX
PULSE FORMER
LOWER INDEX
PULSE FORIIIER
UPPERPLATTERSELECT(N~~--~~~
UPPER PLATTER SELECT (LUPSG) ---- .....
MULTIPLE
OONTROL
L
SELECTED AND READY (NlSARG)----~_.a
UPPER COUtiT
CONTROL
LOWER COUNT
CONTROL
r
UPPER SECTOR
NUM8ER OOUNTER
----~
I
LOWER SECTOR
NUMBER OOUNTER