Philips 20MC4304, Service Manual

Page: 22 / 316

1-4-8
DVD System Control / Servo Block Diagram
BLOCK DIAGRAMS < DVD Section >
TD901BLDS
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
S
D
ATA
61
REMO
TE
PWRCON
PWRCON
53
SCLK
CN401
D
VD MAIN CB
A UNIT
DRIVE CB
A
IC301 (SER
V
O
DRIVE)
IC451 (CLOCK GENERA
T
OR)
IC202 (OP AMP)
12
14
CN301
FG CB
A
FG SENSOR
M
SLED MOTOR
M
SPINDLE MOTOR
IC101 (MICR
O CONTR
OLLER)
+ -
+
-
+
-
+
-
+
-
+
-
+
-
SLED M
OTO
R
DRIVE
FOCUS A
CTU
A
T
OR
DRIVE
1/4 1/4
PLL2
X451
MUL
TI
PLL
X'T
AL
OSC
36.864MHz OSC
SPINDLE M
OTO
R
DRIVE
TRA
CKING
A
CTU
A
T
OR
DRIVE
EXT CLOCK CLK33M BE CLOCK
172 170 150
TRA
Y
-OUT
TRA
Y
-IN
FG-IN
97
SLD
70
SPDL
71
TRA
CKING
DRIVE
152
FOCUS DRIVE
60 66
T
O
DIGIT
AL SIGNAL
PR
OCESS BLOCK
FS(+) FS(-) TS(+) TS(-)
T
O
D
V
D/ A
UDIO
BLOCK
51
AD
A
C-MD
50
AD
A
C-MC
96
AD
A
C-ML
AD
A
C-MC
AD
A
C-ML
PCM-SCLK
95
A-MUTE
AD
A
C-MD
A-MUTE
17 92
FSEL RESET
68
RESET
IC461
5
4
+3.3V
TRA
Y
-OUT
TRA
Y
-IN
FOCUS SER
V
O
SIGNAL
TRA
CKING SER
V
O
SIGNAL
SLED SER
V
O
SIGNAL
SPINDLE SER
V
O
SIGNAL
3
SP(+)
4
SP(-)
5
TRAY-OUT
6
TRAY-IN
7
GND
8
SL(-)
9
SL(+)
1
FG-IN
18
CS
20
SD
A
T
A
21
SCLK
22
D
VD-REMO
TE
T
O
SER
V
O
/SYSTEM CONTR
OL
BLOCK <TV/VCR SECTION> CN2402
63
T
O
PO
WER
SUPPL
Y BLOCK
<TV/VCR SECTION>
DVD-
" " = SMD
NO
TE FOR
WIRE CONNECT
ORS:
1.
PREFIX SYMBOL "CN" MEANS CONNECT
OR.
(CAN DISCONNECT AND RECONNECT
.)
2.
PREFIX SYMBOL "CL" MEANS
WIRE-SOLDER
HOLES OF
THE PCB
.
(WIRE IS SOLDERED DIRECTL
Y
.)