Yamaha DVD-S1200 Service Manual page 31

A B
Q Q
3 7 6 3 1 5 1 5 0
1
BLOCK DIAGRAM (3/7)
IC2001
(ODC/DSC)
A
TRSDRV
67
2
TRIN
114
FOIN
115
3
SPDIN
68
T E
L 1 3 9 4 2 2 9 6 5 1 3
4
MUTE2
TIL TN 70
MUTE3
TILT 71
5
FG 69
FG
FG ENB 55
6
w w w
IN SW
61
.
SW2601
7
B
C D http://www.xiaoyu163.com
IC2501
(MOTOR DRIVE)
TRIN
26
BIAS1
VIN1
2
VIN2
3
VIN3
23
OPOUT
6
LDIN
FROM
24
IC6001-27,28PIN
BIAS2
CH3
27
MUTE
CH1,2
9
MUTE
x a o u 1 6 3
y
i
http://www.xiaoyu163.com
E F
8
RF SIGNAL
LEVEL
SHIFT
-
+
LEVEL
SHIFT
+
-
-
+
Q Q
3 7 6 3 1
LEVEL
SHIFT
-
+
LEVEL
SHIFT
-
+
c o
.
G H
2 4
9 9 8
MOTOR DRIVE SIGNAL TRACKING ERROR SIGNAL
VO4+
15
-
+
M2502
TRAVERS MOTOR
VO4-
16
-
+
OPIN+
4
VO3+
17
-
+
M2501
SPINDLE MOTOR
VO3-
18
-
+
OPIN-
5
OPTICAL PICK UP UNIT
5 1 5 0 8 9 2 4 9
IC2511-11,12,13,14
7.2Vp-p(20usec./div.)
-
VO1+ ACT F+
+
14
VO1- ACT F-
13
-
+
VO2+ ACT T+
12
VO2- ACT T-
11
-
+
-
+
IC6001
(SUB CPU)
LD CNT TRAY/TRV
CNT 28 47
MUTE4 TRAY/MUT
CH4
20 31
MUTE
m
TRAY CLOSE
38
TRAY OPEN
FROM
37
PP6002-1PIN
I J
DVD-S1200
2
9 9
FOCUS ERROR SIGNAL
8 2 9 9
ACTUATOR
FOCUS
COIL
TRACKING
COIL
30