Yamaha CDX-E100, Service Manual

Page: 19 / 35

CDX-E100
CDX-E100
■
IC BLOCK
18
2 3
P1
5 IN 1
1
GND
4
VZ
6
IN 2
OUT
1
8
VCC 2
10
OUT
2
9
P2
INPUT LOGIC
PRE DRIVER
7
VCC 1
VCC E– C+ NC
OUTPUT
(+5V) DELAY
RESET OUT
BAL. ADJ.
GND
ON/OFF
E– C– NC –VCC
DELA
Y
CIRCUIT
REFERENCE
REGULATOR
PROTECTION
ON/OFF
CONTROL
REFERENCE
IN
+
+
CURRENT
CONTROL CURRENT
CONTROL
16 15 12 7
9
10
3 2 4
6
11
8
1
14 13
5
OUTPUT
(–5V)
CURRENT
CONTROL
IC6 : M5290FP
Constant-Voltage Tracking Supply with Reset
IC2 : LB1641
Motor Driver
36
PDAC
EQ
+
35
PDBD
+
31
PDFR
34 PDF
+
32
PDER
33
PDE
+
+
+
VCBA
+ +
VCBA
29
F
.BAL
7
RF OUT
6
RF
–
+
27
FEOUT
28
FE
–
+
VCBA
+
VCBA
+
+
30
TBAL
+
24
CR
OSS
+
25
TEOUT
26
TE
–
8
RF IN
RF
DETECT
9
C.
AG
C
AGC
10
ARF
17
RF DET
ENV DETECT
11
C
.ENV
12
C
.EA
19
ENV
BDO
OFTR
13
C.SBDO
14 BDO
15
C.SBRT
16
OFTR
18 GND
5
VCC
+
23
TEBPF
+
22
VDET
+
20 VREF
1
PD
4
LDP
3
LDON
2
LD
21
LD OFF
IC3 : AN8806SB
CD Head Amp
TSD
STAND
BY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
25K
23K
10K
10K
15K
15K
10K 10K 10K 10K
10K 10K
3.6K
10.8K
VCC
OP1
PA PA
PA PA
PA
PA
PA
PA
OP1
OP1 OP1
OP1
OP1 OP1
VREF-IN
VREF-OUT
N. C.
GAIN 1
VCTL 1 (–)
VM 1 (–)
VM 1 (+)
GND
VM 2 (+)
VM 2 (–)
VCTL 2 (–)
GAIN 2
N. C.
VCC
REG 5V
STAND BY
SS. GND
STAND BY
GAIN 4
VCTL 4 (–)
VM 4 (–)
VM 4 (+)
GND
VM 3 (+)
VM 3 (–)
VCTL 3 (OUT)
VCTL 3 (–)
VCTL 3 (+)
VCC
REGBASE
IC1 : M56748FP
4-Channel BTL Driver
– +
OUT
1
–IN
1
–V
CC
+V
CC
OUT
2
1
2
3
4 5
+IN
1
–IN
2
+IN
2
– +
6
7
8
IC9 : S-24C01ADP
Electrically Erasable PROM
IC7, 8 : NJM2068MD-D
Dual OP-Amp
8
4
5
2
3
7
6
1
VCC
VSS
SDA
SCL
NC
NC
NC
NC
DATA REGISTER
E PROM
32X32
H.V.GENERATION
TIMING &
CONTROL
XDEC
YDEC
WORD
ADDRESS
COUNTER
START
STOP
LOGIC
CONTROL
LOGIC
D
OUT
ACK
32
8
D
OUT
32
5
2
CK
PIN
INC LOAD
START
CYCLE
2