Block Diagram - Yamaha CRX-E300 Service Manual

A B
1
I BLOCK DIAGRAM (1/2)
OPERATION
See page 48
IC202
2
13
EXT-IN
8 REA
7 REB
9 CNVSS
12 RESET
65 VSS
31 LCK-OUT
33 ROM-DAT1
34 ROM-DAT0
32 ROM-CLK0
30 ROM-CE-OUT
2 〜 5 17 〜 20 29 92
3
4
IC303
COM 2
Q301 8 IC302
MUTE
CD
See page 49
4
IC304
INPUT
7 5
1 3
See page 47
5
+12V
Q305, 306
Q307, 308
6
6
25
4
27
1
30
2
29
3
28
7
+12V
-12V
C D
3 7 8 57
3
91
IC201
〜 96 98 22 23 24 25 31 32 33
11 PRLY
IC301 10 Q302
12
6 9
Q304 Q303
MUTE A SPRLY
TH
PRO-I
Q423, 430, 431, 433,
+B,
434
-B,
+12V
IC202 1 pin
Q401, 437
Q416, 422,
-12V 429
IC307, Q309
B, G models only
+5V
IC309
+12V
M1
IC306
+12V
+12V
-12V
-12V
E F
Q201, 203 Q202
BACKUP CAPACITOR
FOR TIMER ONLY
C217
90 27 28
MAIN
See page 50
+12V +5A ACAMP3
D403, 404,
RY402,
405
Q414
-12V -VP ACAMP4
+B
Q432
RY401
+12V
+5A
Q435, 436
R506, 507
-12V
-VP
JK302
+10V
IC202 5 pin
+5M
G H
U, C, A, B, G, K, J models only
RY402,
Q414
RY402,
D408
Q414
F403
C457
C458
D420
IC400
+B
IC401
+B
-B
Q428
-B
Q415
ACCD1
Q402
ACCD2
I J
CRX-E300
RY402
F402
G model
only
U, C, A, B, G, K, J models only
F400
39