Remote Control - Yamaha CRX-040 Service Manual

A

■ REMOTE CONTROL

1
SCHEMATIC DIAGRAM
VCC
D1
2 IR DIODE
R1
1ohm
Q1
3
4
PANELS
5
6
7
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B
These PADs are test point for ISP in the production line
R3
10ohms
SO
SCLK
SI
R2
VDD
47ohms
GND
X1
4.0MHz
VPP
+
C1
1 3
47uF
2
U, T, K, A, B, G, L, V models
C
U1
uPD6P8AMC-5A4-E1-A
1 20
KI/O6 KI/O5
2 19
KI/O7 KI/O4
3 18
S0 KI/O3
4 17
S1/LED KI/O2
5
16
REM KI/O1
6
15
VDD KI/O0
7 14
XOUT KI3
8 13
XIN KI2
9 12
GND KI1
10 11
S2 KI0
D
CRX-040/CRX-140/NS-BP80
30 15 11 18
34 1 12 16
36 6 10 38
32 5 9 39
31 4 8 19
35 3 7 37
2 13 21
33 17 14 20
J model
E
26
23
25
28
27
22
24
29
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