Spindle Servo Block Diagram - Sony LDP-1500P Service Manual

5-5. SPINDLE SERVO BLOCK DIAGRAM
I
ss -
32 BOARD
REF H
18 INCH
+5
0214
12
IC204
JUMP
I
JUMP TRIG
I
FG STILL
I
CLV /GAV
19
I
l:DciN
241
IRUN
R234
261
18
I
r - s 1 2
I
SCED
eos,n,-
23
5-9
SPINDLE SERVO SPINDLE SERVO
H LOOP
C218
R238-241
GAIN
SPINDLE ERROR
CONTROL
4
IC201
~~
S2 SI
IC201
+5
H LOOP ON
FG LOOP
_,
IC201
r - S 3
LJ
r-S7
-5
V2
22
SPINDLE CONTROL LOGIC
i i
I
S12
V3 V4 V5 28
S11--
7
-5
SV-79 BOARD
0215
DRIVE
SPINDLE RTN
F/R
8/i2
- - - - - - - - - - - - - - SPINDLE WCK
I
ERROR MUTE I
I
I
·-· """ I
SPINDLE FG
SPINDLE STOP
TRACKING CORR
5-10
SPINDLE
MOTOR