Aiwa CX-JT8, Service Manual

Page: 6 / 46

CX-JT8
22 22
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM – CD Section –
8
7
9
10
80
79
70 LIMIT SW
20
TDO
18
10
VO3(+)
FOIN
20 TIN
3 SPIN
7 LDS
25 SLIN
17 VO3(–)
11 VO2(+)
12 VO2(–)
26 VO4(+)
27 VO4(–)
2 VO1(+)
1 VO1(–)
A
C
B
D
E
F
LD
PD
RF AMP, FOCUS/TRACKING ERROR AMP,
DIGITAL SIGNAL PROCESSOR, DIGIRAL SERVO PROCESSOR,
DIGITAL FILTER, D/A CONVERTER
IC721
21
FDO
23
SLDO
22
SPDO
25
CONT4
A
B
D
E
F
C
I-V AMP
DETECTOR
LD PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSM-213DCP)
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
M702
(SPINDLE)
M701
(SLED)
M
M
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC722
49
48
X701
16.9344MHz
S701
(LIMIT)
79 DATAIN
80 DATACK
5 C2FIN
1 LRSY
2 ADDATA
3 ADBCK
4 ADLRCK
7 CKIN
9 CKOUT
78 RESB
99 I-LC78646/LC78684 DI
98 O-LC78646/LC78684 DO
100 O-LC78646/LC78684 CLK
5 O-LC78646 CE
85 I-WRQ
86 I-CD DRF
4 O-LC78646 RESET
60
DATA
59
DATACK
52
C2F
58
LRSY
57
ASDFIN
56
ASDACK
55
ASLRCK
54
16MOUT
10 6
76 66
53
EFLG
50
FSX/16MIN
73 CMDOUT
74 CMDIN
CE FSYNC
O-LC78684 CE
I-LC78684 SYNC
75 CL
26 MP3RES
64
DO
63
DI
62
CL
96 I-CD NUMBER SENS
22
I-BU IP DOWN/
CD OPEN CLOSE
9 RIN
LM-R
11 RESET
1 O-SYS-MUTE
94 O-POWER RELAY
29 I-HOLD
S-MUTE
O-POWER
HOLD
61
CE
65
* WRQ
67 DRF
72 CD MUTE
66 * RES
4 OUT1
2 OUT2
M751
(LOADING)
M
LOADING MOTOR DRIVE
IC701
MP3 DECODER
IC801
SYSTEM CONTROLLER
IC901 (1/2)
S751
OPEN/CLOSE
DETECT
OPEN
CLOSE
LEVEL SHIFT
Q731
TABLE ADDRESS
SENSOR
IC731
+
ROTARY
ENCODER
S711
7 FIN
LM-F
9 RIN
TM-R
4 OUT1
2 OUT2
M741
(TABLE)
M
TABLE MOTOR DRIVE
IC712
7 FIN
TM-F
LM-F, LM-R,
TM-F, TM-R
D
S-MUTE,
O-POWER, HOLD
B
42
LCHO
45
RCHO
R-CH
CD-L
A
APC
FIN2
FIN1
LDD
LDS
TIN2
TIN1
XOUT
XIN
RF
4
EFMIN
3
ERROR
CORRECT
EQ,
AGC
COMMAND
INTERFACE
CLOCK
GENERATOR
PH, BH
RF AMP
TBAL
A/D
CONVERTER
D/A
CONVERTER
EXTERNAL
AUDIO IN
SERIAL OUT
D/A
CONVERTER
SERVO
PROCESSOR
AUTOMATIC
POWER CONTROL
Q701
27 I-POWER DOWN
POWER DOWN
RESET
RESET,
POWER DOWN
C
• SIGNAL PATH
: CD PLAY
• R-ch is omitted due to same as L-ch.
(Page 24)
(Page 24)
(Page 24)
(Page 23)
R-CH
DISC TRAY
ADDRESS DETECT
I/01 – I/016
A0 – A8
MDATA0
– MDATA15
MADRS0
– MADRS8
27 OE 45 OEB
13 WE 42 WEB
14 RAS 41 RASB
29 LCAS 43 CASLB
28 UCAS 44 CASUB
IC802
MEMORY
2-5, 7-10,
31-34, 36-39 23-30, 33-40
60-53, 50
16-19, 22-26
MUTING
Q311
MUTING CONTROL
SWITCH
Q312