Yamaha CRX-E150 Service Manual page 36

A B
CRX-E150
SCHEMATIC DIAGRAM (OPERATION)
1
Q Q
3 7 6 3 1 5 1 5 0
2
3
~
~
~
~
~
~
~
-30.1
-30.3
0
1.8
1.9
0
3.5
4.9
0
4.9
0
4
4.9
4.9
4.8
T E
L 1 3 9 4 2 2 9 6 5 1 3
5
4.8 0
4.9
0
0 5.1 6.7 6.7
0
0 0
6
OPERATION KEY
7
w w w
8
FROM INPUT (2) E-42/J-38
H6
9 E-43/J-39
C D E
FLUORESCENT DISPLAY
~
~
~
~
~
µ-COM
~
~
~
~
~
~
M30217M8
~
~
~
~
4.8
0
2 1 0.4
4.8
0
0
0
0
0
4.9 4.9
6.7
6.7
4.9
4.8
0
x a o
. i
FROM MAIN (1) E-45/J-41
E2
F G
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-25.3 -30.3
Point 1 Pin 13 of IC202
0 0.4 0
EEPROM
4.8 0 4.8
Q Q
3 3 7
4.9
0
4.9 5.5 5.5
4.8
6.2
4.8 5.5
11.6
B
4.7
0
7.5
0
REMOTE SENSOR 0
0
0 4.9 4.9
4.9
4.5
-14.8
u 1 6 3
y
TO INPUT (1) E-42/J-38
G3
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H I
2 4
8 9 9
Point 2 Pin 11 of IC202
6 3 1 5 1 5 0 8 9
Point 3 emitter of Q206
11.7
and collector of Q204
6.2
0
11.6
A Q206 E
10.9
6.9 Q204 C
6.9
0
POWER ON POWER OFF
(Connect the power cord) (Disconnect the power cord)
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
2SC4481 2SA1037K
DTA144EKA
C
B
C
E
m
c o
.
J K L
2
8 9 9
2 4 9 8 2 9 9
IC201: BU2090F
Serial In/Parallel Out Driver
Vss 1 16 VDD
DATA Q11
2 15
Logic
CLOCK 3 14 Q10
Q0 Q9
4 13
Q1 5 12 Q8
Q2 Q7
6 11
Q3 7 10 Q6
Q4 8 9 Q5
IC203 : S-29390AFJA
CMOS 4kbit Serial EEPROM
Memory array Address decoder
Data register Output buffer 6 DO
DI 5
8 TEST
Mode decode logic
3
CS
1 NC
2 Vcc
4
SK Clock generator 7 GND
1SS355 S-29390AFJA BU2090F M30217M8-AXXXFP
UDZ5.1B
80 51
UDZ6.8B
UDZS6.2B
81 50
Anode
8
8 4 16
E
B 1
1 100 31
Cathode
1 30
All voltage are measured with a 10MΩ /V DC electric volt meter.
Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
Schematic diagram is subject to change without notice.