Yamaha CRX-E500 Service Manual page 38

A B
CDC-E500
1
I IC BLOCK
IC1: AN4801SB-E1
4-Channel Power OP-Amp System Driver
19 18 16 17 14 15 12 13 10
PV
CC/2
+ + - + + - + + -
- - - -
20
STDY
2
Standby
Band gap Direction Direction Direction Direction
Detector Detector Detector Detector
V /V
CC REF
Reset Circuit
- + - + - +
RESET 5
FIN 23 25 26 2 1
IC2, 3: TA8409SE
Full Bridge Motor Driver
VCC VS
3
2 6
STAND-BY
CIRCUIT
IN 1
9
IN 2 1
4
THERMAL
SHUTDOWN
CIRCUIT
5
GND
IC5: NJM78M05FA
5
Voltage Regulator
V IN
V
OUT
6
GND
7
38
C D
IC6 : M51953BFP
System Reset
V
CC
7
11 9 8
R 5µA
PV
CC/2
+ + -
–
–
+
R
1.25V
4 5
- +
GND C D
24 VREF
3 4
IC200: AN8399SA-E1
CD Head Amp.
4 4 5 5 6 6 8 8 9 9
RF EQ AGC AGC
VREF
8 VREF
CIRCUIT
NRFDET
A
32 32
AMP GCA GCA BCA BCA
C 31 31
7
OUT 1
B 30 30
3 OUT 2
AMP AMP GCA GCA BCA BCA
D 29 29
E
27 27 AMP AMP GCA GCA BCA BCA
F 28 28
AMP AMP GCA GCA BCA BCA
+
VREF
19 19
–
BAND GAP
18 18 24 24 26 26
E F
IC203 : S-29190AFJA
CMOS 1kbit EEPROM
Memory array Address decoder
Data register Output buffer
6 RESET
DI 5
Mode decode logic
CS 3
4
SK Clock generator
IC207, 208: NJM2068MD
Dual OP-Amp.
OUT 1 8 +V
1 CC
–IN 2 7 OUT
1 2
12 12 13 13 14 14 15 15
+ – + –
+IN 3 6 –IN
1 2
–V 4
CC 5 +IN 2
BDO OFTR OFTR
CEA
10 10
3TENV
11 11 3T OUT
NRFDET
16 16
FEN
22 22
SUBT SUBT –
FEOUT
23 23
+
TEN
20 20
SUBT SUBT – –
TE OUT
21 21
+ +
– –
2 2 LD
+ +
1 1 PD
25 25 7 7 17 17 3 3
I PIN CONNECTION DIAGRAM
2SB544 2SA933S 2SD2396
E
C B
E
C B B C
M51953BFP TA8409SE
NJM2068MD
S-29190AFJA
8 4
1
1
G H
IC300: LC75710NE
FL Display Driver
DI
64
6 DC
DO
CL 63 SHIFT REGISTER
RAM
8 TEST
CE 62
1 NC
2 Vcc
7 GND
ADDRESS ADDRESS
VDD 60
REGISTER COUNTER
VSS 57
BLINKCYCLE BRINK
REGISTER GENERATOR
VFL 55
DISPLAY
DISPLAY
REGISTER CONTROL
RES 61
DUTYCYCLE DUTY
REGISTER GENERATOR
TEST 56
GRID
GRID
REGISTER CONTROL
INSTRUCTION
CONTROL
DECODER
OSCI 59 TIMING
OSC DIVIDER
GENERATOR
OSCO 58
2SD1938F 1N4002S 1SS355 D2SBA20
MA8051-M
MA8056-M
MA8062-H
Anode
Anode MA8062-M
MA8270-M
C
E
B
~
Cathode Cathode ~
+
E
AN4801SB-E1 AN8399SA-E1 LC75710NE M30622M8A-5M4FP
48 33
14 17 81
49 32
20
28
21
13
9
16
26 32
7
27
6 64
17 100
1
1
1 16
I J
CG 1 AM1
ROM 2 AM2
CG
RAM
AM35
35
AA1
36
AD
AA2
RAM 37
AA3
38
AA4/G16
39
AA5/G15
40
AA6/G14
41
AA7/G13
42
AA8/G12
43
44 G11
45 G10
53 G2
54 G1
NJM2068MD
NJM78M05FA
–
3: IN
1: OUT
2: COM
80 51
50
31
1 30