Blockdiagram; Wiring - Philips CDR785/00 Service Manual

Blockdiagram

CD MECHANISM PHOTODIODE & HF AMPLIFIER - LOADER CONTROL PCB
DISC
7806
TDA7073A
TURNTABLE FOC +
MOTOR
55
FOCUS
FO
MOTOR FOC -
RAD +
RADIAL 54
RA
MOTOR RAD -
7807
TDA7073A
SLEDGE +
SLEDGE 56
SL
MOTOR SLEDGE -
TTM -
59
MOT1
TURNTABLE
MOTOR TTM +
60
MOT2
LASER &
MONITOR
+5V +3,3V
DIODE
2 13 7801
1
LD
7 64
LD ON
4
MON
61
11
CD R/W V4
Laser Control
PHOTO
DIODES
&
HF AMPLIFIER
D4 D2-D4 5
TZA1024 (TZA1025) 10 2
D1 D5 HF IN
D2 D3
6,14
D1
D1-D5 D2
D3
D4
R1,R2
INNER SWITCH
SWITCH INFO
1882
Closed if carrousel is in Position 1. 11
O7
CD POS.1 SWITCH
1880
Closed if the tray is in one endposition. 12
O6
Open during movement.
TRAY SWITCH
1881
13
O5
CD DRIVE UP/DOWN SWITCH
7871
TDA7073A
4
OO
CARROUSEL
MOTOR
5
O1
6
O2
TRAY MOTOR
7
O3
8-4
+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
SERVO - DECODER DATA
Converter
CD10
29 SCLK 3 PCM1716
SLCK
SAA7324 (SAA7325)
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
5,17,21,52,57
KILL DOBM
V1
63 34 32 51
7873
2
DATA
3
SHR_CL
1
STB
SHIFT
REGISTER
16
HEF4094BT
VDD
5V1
15
EN1
V
VDD (pin 16)
EN1 (pin 15)
t
Wiring of CD Drive
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
+5V
7
EBU OUT
9
KILL L
5
KILL R
17
SWITCH INFO
15
SHR_CL
16
SHR-STR
+10V
Blockdiagram 3CDC99-DS 2000-02-17
8-4
Pict. 1
8005
Pict. 2