Block Diagram - Yamaha CRX-E400 Service Manual

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BLOCK DIAGRAM

1
• MAIN: See page19 → SCHEMATIC DIAGRM
• OPERATION: See page 20 → SCHEMATIC DIAGRM
–VP F2 F1
+5V
1 2 58 59 21 ~ 24
F2 F1
FLUORESCENT DISPLAY
V700
2
DIG-1~16 SEG-1~35
~ ~
89 36 62 64 66 88
95 KEY2
OPERATION
96 KEY1
KEY
SW701~707 98 KEY0
97 AVSS
3
25 28 29 30 94 23 24 26
6
OPE. P. C. B.
3 5
CB707
2 7
TERMINAL No.
16 12 8
DAT-I
12
MAIN. P. C. B.
15 MUT-T
10 CE
CB251
16 STA 11 CLK
TERMINAL No.
13 DAT-0
17 ST/MO
TUNER
AM/FM
+12V
4
9 22
1
AUX
30 13
14
2
CD
15
29
6
MD REC
25
3
TAPE REC 5
28
8
IC108
7 4 2
11
MD PLAY
24
8
20 7
5
1
4 23
TAPE PLAY
27
26
PJ100
12 18 19
±12V
5
±12V
6
C
+5V +5V
R745
INPUT REMOTE
SELECTER SENSOR
SW700 U700
5 6 21 7
IC700 µ–COM
4 3 91 27 20 19 92
10 11 14 4 9 17 13
5 6
MUTE
MOTOR
DRIVE
DRIVE Q256 ~ 258
IC211 Q271, 273,
277
2 10
M
MUTING
PROTECTION
±12V
Q281~284
Q272, 275, 276,
279, 280
8 4
5 7
TONE CONTROL MUTING POWER
IC210 Q250, Q251 AMP
3 1
Q252~255
VOLUME
Q259~262
VR210 Q263~266
Q267, 269
VR700 VR701
±B
BASS TREBLE
+12V
OPE. P. C. B.
D E
12S +5V
FM
ANT
REST
GND AM/FM TUNER
(TUNER PACK)
AM
Q701
Q702 ANT
Q703
22 12 16 63 100 99
X IN 10
XL700
X OUT 11
10XOUT 13
XL701
10XIN 15
RLY. PW 2 Q231
35 18 17
+5V
OPE P. C. B.
1
+12V AC1
-VP
MAIN P. C. B.
–12V AC3
+B
JK250
REM
(SYSTEM CONNECTOR)
RELAY
OPE. P. C. B.
DRIVE
Q274
JK700
DG
HP
HEAD
L
PHONES
R
R358,
359
TE250
SPEAKERS
RY250
PJ250
SUB
C. R
WOOFER
+5V
TUNER
F
RDS (B,G only)
MAIN. P. C. B.
12
CB103
TERMINAL No.
Q108
7
RDS 2
3 MUT-T
15 CE
13 CLK 2 STA
14 DAT-I 1 ST/MO
6 TUL
4 TUR
9 5V
8 12V
U, C, A, B, G
RY231
12S
Q231
models
RY231 TRANSFORMER
R model
12S Q232
Q231
D233
G
POWER
TRANSFORMER
F1
F2
+B AC1
D542
C303
C304
AC3
–B
Q540
240V
–VP D270
–B
220V
–30V D540
120V
Q541
+12V +B
IC113 +12V
F401
D541 120V
110V
Q278
–B
–12V
0V
D258
G H
RX-E400
4.332MHz
XL4
13
20 DAT O
TO: µ-COM
RDS
IC109
21
LC72722 CLK
22 DAT I
23 CE
FROM: µ-COM
TUNER TO: INPUT
MAIN P. C. B.
SUB
T231
F231
F232
G only
U, C, A, B, G
models
TE231
R model
SW401
13