Block Diagram -Cd Section - Aiwa CDC-R237 Service Manual

4-2. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP
BLOCK
1
2
+5V
3
4
5
6
VC
7
8
9
10
LD
11
DRIVE
Q221
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING MOTOR DRIVE,
IC201
13 VO3+
6 FOCUS
FOCUS
COIL
COIL 12 VO3-
DRIVE
7
15 VO4+
4
TRACKING
TRACKING
COIL
COIL 14 VO4-
DRIVE
5
+ VO2+
SPINDLE
8
M2
M MOTOR
VO2-
(SPINDLE)
9
- DRIVE
SLED/
+ VO1+
10
LOADING
M1
M
MOTOR
VO1-
(SLED/LOADING) 11
-
DRIVE
REG
5V
OUT
20
REG.
RF AMP
IC221
RFGO 25 57
RFRPIN 24 60
59
RFCT 22
RFRP 20 61 RFRP
5 FRI
FEO 16 62
FEN 17
6 TPI
SBAD 63
15
7 TNI
TEO 14 64
TEN 13 65
4 FNI
TEB 11 70
SEL 74
10
8 MDI
RFGC 2 69
GVSW 26 33
9
LDD
VREF 19 VRO
78 XI
X241
16.9344MHz
79 XO
VIN3
17 66 FOO
VIN3G
18
VIN4
24 67 TRO
VIN4G
23
MUTE 25 28 P3-3(ADIN3)
VIN2
15 72 DMO
VIN2G
26 LM CONT
16
SPEED
VIN1
13 CONTROL 71 FMO
Q202
VIN1G
14
CD+8V
REG IN +5V REG
19
CD+5V
Q201
19
DIGITAL SIGNAL SERVO PROCESSOR
IC241
RFI
LO 86
RFZI
RFCT
RO 82
FEI
SBAD
TEI
TEZI
RESET 90
TEBC
CS 92
SEL
CLOCK 32
RFGC
DATA OUT 31
P2-O/EMPH
30
DATA IN
SRQ 25
LIMIT SW 21
SW3 24
P1-2(K2)
23
P1-1(K1) 22
S1 S2
(DISC IN1) (DISC IN2)
19
CDC-R237
CD L
CD R
RESET
CDS CS
CDS CLO
CDS DO
CDS DI
CDS SRQ
MAIN
A
SECTION
(Page 20)
SW1
S3 S4
(CHUCH) (LIMIT)
• Signal path
:CD