Magnavox 19MDTR20 - Dvd-video Player, Service Manual

Page: 28 / 399

DVD System Control/Servo Block Diagram
TD857BLDS
27
7
8
3
15
10
14
26
1
2
3
4
6
23
5
17
18
12
11
14
13
15
16
25
24
54 CS
55 SDATA
61 REMOTE
PWRCON PWRCON
53 SCLK
CN401
DVD MAIN CBA UNIT
DRIVE CBA
IC301
(SERVO DRIVE)
IC451
(CLOCK GENERATOR)
BLOCK DIAGRAMS < DVD Section >
IC202
(OP AMP)
12 14
CN301
FG CBA
FG
SENSOR
M
SLED
MOTOR
M
SPINDLE
MOTOR
IC101
(MICRO CONTROLLER)
+
- +
-
+
-
+
-
+
-
+
-
+
-
SLED
MOTOR
DRIVE
FOCUS
ACTUATOR
DRIVE
1/4
1/4 PLL2
X451
MULTI
PLL
X'TAL
OSC
36.864MHz
OSC
SPINDLE
MOTOR
DRIVE
TRACKING
ACTUATOR
DRIVE
EXT CLOCK
CLK33M
BE CLOCK 172
170
150
TRAY-OUT
TRAY-IN
FG-IN 97
SLD 70
SPDL 71
TRACKING
DRIVE
152 FOCUS DRIVE
60
66
TO DIGITAL SIGNAL
PROCESS BLOCK
FS(+)
FS(-)
TS(+)
TS(-)
TO DVD/ AUDIO
BLOCK
51
ADAC-MD
50 ADAC-MC
96 ADAC-ML
ADAC-MC
ADAC-ML
PCM-SCLK
95
A-MUTE
ADAC-MD
A-MUTE
17
92
FSEL
RESET 68 RESET
IC461
5 4
+3.3V
TRAY-OUT
TRAY-IN
FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL SLED SERVO SIGNAL SPINDLE SERVO SIGNAL
3 SP(+)
4 SP(-)
5 TRAY-OUT
6 TRAY-IN
7 GND
8 SL(-)
9 SL(+)
1 FG-IN
18 CS
20 SDATA
21 SCLK
22 DVD-REMOTE FROM/TO SERVO
/SYSTEM CONTROL
BLOCK
<TV/VCR SECTION>
CN2402
63
TO POWER
SUPPLY BLOCK
<TV/VCR SECTION>
1-5-16 1-5-15
DVD-
" " = SMD
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)