Block Diagrams - Emerson EWD7003 Service Manual

System Control/Servo Block Diagram
FOCUS SERVO SIGNAL
PCM-SCLK
A-MUTE
TO
ADAC-MD
VIDEO/ AUDIO
ADAC-MC
BLOCK DIAGRAM
ADAC-ML
FS(+)
FS(-)
TO DIGITAL SIGNAL
TS(+)
PROCESS BLOCK
DIAGRAM
TS(-)
TRAY-OUT
TRAY-IN
SPINDLE
MOTOR
CN301
M
SP(+) 3
SP(-) 4
TRAY-OUT 5
SLED
TRAY-IN 6
MOTOR
GND 7
M
SL(-) 8
SL(+) 9
FG-IN 1
FG CBA
FG
SENSOR
DRIVE CBA

BLOCK DIAGRAMS

SLED SERVO SIGNAL
TRACKING SERVO SIGNAL
IC301
VREF
(SERVO DRIVE)
27
+
FOCUS
15
+
-
ACTUATOR
26
-
16 DRIVE
25
24
+
TRACKING
14 +
-
ACTUATOR
1
-
13 DRIVE
2
3
SPINDLE
12
+
MOTOR
4
+
-
11 DRIVE
-
5
6
SLED
17 +
MOTOR
-
18 DRIVE 23
+3.3V
IC461
5 RESET 4
IC202
(OP AMP)
3 1
DVD MAIN CBA UNIT
1-7-1
SPINDLE SERVO SIGNAL
IC101
(MICRO CONTROLLER)
163 PCM-SCLK
55 A-MUTE
57 ADAC-MD
56 ADAC-MC
58 ADAC-ML
148 FOCUS DRIVE
TRACKING
147
DRIVE
76 SPDL
CN401 CN1001
FP-STB 70 17 FP-STB 17
FP-DIN 60 18 FP-DIN 18
FP-DOUT 61 20 FP-DOUT 20
FP-CLK 21
FP-CLK 59 21
75 SLD
REMOTE 22 REMOTE 22
53
RM2001
REMOTE
SENSOR
73 RESET
66 TRAY-OUT
69 TRAY-IN
72 FG-IN
+5V
IC2001
(FRONT PANEL CONTROL)
D2003
POWER
DISC IN LED 18 Q2001
PLAY LED 17
2 FP-STB
28 FP-DIN
27 FP-DOUT
1 FP-CLK CN2001
KEY-1
KEY-1 7 7
5 KEY-2
KEY-2 8
KEY-3 9 6 KEY-3
KEY-4
KEY-4 10 8
3 K2
K2 4
K1 3 4 K1
AV CBA
1-7-2
D2001 D2002
DISC IN PLAY
Q2003
CN2002
7
5
6
KEY
8
MATRIX
3
4
FUNCTION CBA
E58T0BLS