Blockdiagram - Philips FW-C220 Service Information

Blockdiagram

CD MECHANISM
DISC
TURNTABLE
MOTOR
FOCUS
MOTOR
RADIAL
MOTOR
SLEDGE
MOTOR
TURNTABLE
MOTOR
LASER &
MONITOR
DIODE
PHOTO
DIODES
D4
D1 D5
D2 D3
INNER SWITCH
SWITCH INFO
1882
Closed if carrousel is in Position 1.
CD POS.1 SWITCH
1880
Closed if the tray is in one endposition.
Open during movement.
TRAY SWITCH
1881
CD DRIVE UP/DOWN SWITCH
CARROUSEL
MOTOR
TRAY MOTOR
PHOTODIODE & HF AMPLIFIER - LOADER CONTROL PCB
7806
TDA7073A
FOC +
55
FO
FOC -
RAD +
54
RA
RAD -
7807
TDA7073A
SLEDGE +
56
SL
SLEDGE -
TTM -
59
MOT1
TTM +
60
MOT2
+5V +3,3V
7801
2 13
1
LD
7 64
LD ON
4
MON
61
11
V4
CD R/W
Laser Control
&
HF AMPLIFIER
5
D2-D4
TZA1024 (TZA1025)
10 2
HF IN
6,14
D1
D1-D5
D2
D3
D4
R1,R2
11
O7
12
O6
13
O5
7871
TDA7073A
4
OO
5
O1
6
O2
7
O3
10-7
SERVO - DECODER
CD10
SAA7324 (SAA7325)
KILL DOBM
V1
63 34 32 51
7873
2
DATA
3
SHR_CL
1
STB
SHIFT
REGISTER
16
HEF4094BT VDD
15
EN1
V
+10V
+5V
7877
RCK EXCK
SUB SBSO
SBSY SCOR
SFSY WFCK
CL11 MCK
CD Text
LC89170M
7810
D/A
28 1
WCLK
WLCK
D/A
27 2
DATA
DATA
Converter
29 3 PCM1716
SCLK
SLCK
D/A
5 8,9,15
26 CL16
CL16
MC78L05ACP
38
PORE
42
SILD
40
SCL
7874
Level converter
39
SDA
7875
+3,3V
VCC +5V
5,17,21,52,57
5V1
VDD (pin 16)
EN1 (pin 15)
t
Blockdiagram 3CDC99-DS 2000-02-17
1805
18
20
7876
21
13
DQSY
DQSY
22
12
SRDT
SRDT
20
11
SCLK
µP_CLK
23
16
CD LEFT
13 21
CD RIGHT
7878
+10V
10
PORE
12
SILD
14
SICL
13
DATA
7
EBU OUT
9
KILL L
5
KILL R
17
SWITCH INFO
15
SHR_CL
16
SHR-STR
+10V