Philips FW-V320/21M Service Manual page 63

BLOCK DIAGRAM 3CDC-LC CDR Version
CD MECHANISM MAINBOARD
VAM2201, VAM2202, VAM2204
DISC
M63000
TURNTABLE
FOCB+
MOTOR
FOCUS
MOTOR
FOCB-
RADIAL RADB+
MOTOR
RADB-
SLEDGEB+
SLEDGE
MOTOR
SLEDGEB-
TTM-
TURNTABLE
MOTOR
TTM+
LASER &
MONITOR
+5V
DIODE
2 13
1
LD
4
MON
LASER CONTROL
PHOTO
&
DIODES
HF AMPLIFIER
D4 D2-D4 5
TZA1024
D1 D5
(TZA1025)
D2 D3
6,14
INNER SWITCH
1876 1875
CAROUSEL
5 1
POS. RECOGNITION
1 5 1883 open if carousel is in a valid Play-Position.
1883
3 3 1882 closed if carousel is in Position 1.
1882
CD POS.1 SWITCH
2 4
CAROUSEL
MOTOR
4 2
TRAY
1,3 1,3
TRAY
MOTOR
2 2
1877 1878
10-5
7803
19 55
FO
15 54
RA
34 56
SL
3 59
MOT1
+3,3V
7801
7 64
LD ON LD ON
11 61
CD/RW V4
7804
Low = 2x speed 62
12
EQSEL EQSEL
High = 1x speed
7805
3
ISLICE
High amplification
(4x speed)
10 2
HF IN
Low amplification
D1
D1-D5
(1x and 2x speed) D2
D3
D4
R1,R2
SWITCH INFO
1880
Closed if the tray is in one endposition.
Open during movement.
TRAY SWITCH
1881
Open if the drive is in one endposition.
Closed during movement.
CD DRIVE UP/DOWN SWITCH
7814
TDA7073
7802
SIGNAL PROCESSOR
CD10
SAA7324 (SAA7325)
38
RESET
42
SILD
41
RAB
40
SCL
39
SDA
VCC +3,3V
5,17,21,52,57
DOBM
V1
63 51
EBU OUT
7873
2
7
DATA
3
SHR_CL
6
1
STB
SHIFT
REGISTER
16
VDD
4
HEF4094BT
15
5
EN1
V
VDD (pin 16)
EN1 (pin 15)
t
12
D5
11
D3
10
D2
9
D0
10-5
1802
6
RESET
5
SILD
4
RAB
3
SICL
2
SDA
1
GND
8
EBU_GND
7
EBU
1805
5
SWITCH INFO
2
SHR-DATA
3
SHR_CL
4
SHR_STR
1
NC
+10V
5V1
7815
+5V
+3,3V
1805
+4V
9
NC
6801
8
+5V +5V
6
+10V +10V
7
GND
Blockdiagram 3CDC-LC(Herman) 2000-09-04
Digital Audio
Supply
CDR Version