Yamaha CRX-040 Service Manual page 52
Micro component system cd receiver/speaker
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Also See for CRX-040:
- Owner's manual (136 pages) ,
- Service manual (101 pages) ,
- Owner's manual (26 pages)
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CRX-040/CRX-140/NS-BP80
Pin
Port Name
No.
P70/TXD2/SDA2/
30
TA0out
31 P67/TXD1/SDA1
32 P66/RXD1/SCL1
33 P65/CLK1
P64/CTS1/RTS1/
34
CTS0/CLKS1
35 P63/TXD0/SDA0
36 P62/RXD0/SCL0
37 P61/CLK0
38 P60/CTS0/RTS0
39 P57/RDY/CLKout
40 P56/ALE
41 P55/HOLD
42 P54/HLDA
P53/BCLK
43
P52/RD
44
P51/WRH/BHE
45
46 P50/WRL/WR
47 P47/CS3/TXD7/SDA7 CD_MOSI
48 P46/CS2/RXD7/SCL7 CD_MISO
49 P45/CS1/CLK7
50 P44/CS0/CTS7/RTS7 CD_CS
51 P43/A19
52 P42/A18
53 P41/A17
54 P40/A16
55 P37/A15
56 P36/A14
57 P35/A13
58 P34/A12
59 P33/A11
60 P32/A10
61 P31/A9
62 Vcc2
63 P30/A8
64 Vss
65 P27/A7/AN27
66 P26/A6/AN26
52
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I/O
Function
Name
(P.C.B.)
DAB_SDA
I2C
I
I
TXD1
RXD1
CLK1
BUSY
ASEL_SDA
I2C
I
I
ASEL_SCL
I2C
I
I
USB_DET_OFF
O
O
O
nAMP_MUTE
O
O
O
(reserved)
O
O
O
CLKOUT
PRY_CTRL
O
O
O
nDEB_EMP
RDS_RDY
I
I
I
O
O
O
nRDS_RST
O
O
O
O
O
O
nDAB_RST
O
O
O
O
O
O
nICP_RST
O
O
O
O
O
O
nDEB_CE
SPI
SPI
O
SPI
SPI
I
CD_SCK
SPI
SPI
O
O
O
O
(reserved)
O
O
O
nCD_RST
O
O
O
CD_SPEED
I
O
O
USB_DET
I
I
I
nUSB_PON
x
I
I
nUSB_FLG
I
I
I
nDRV_MUTE
O
O
O
CD_LOAD1
O
O
O
CD_LOAD2
O
O
O
CD_LSW1
I
I
I
CD_LSW0
I
I
I
Vcc
MCU MCU MCU
(reserved)
O
O
O
Vss
MCU MCU MCU
HP_DET
I
I
I
nHP_MUTE
O
O
O
O
MCU
O
MCU
O
MCU
O
MCU
MUTE control signal of D-AMP
0: D-AMP MUTE
1: D-AMP MUTE cancelled
ON/OFF control of power relay (main transformer)
0: Power relay off
1: Power relay on
I
[MCU]
I
[MCU]
Forced monoploid speed control of CD, reserve / Set when MATSUSHITA
resetting is cancelled; Hi-Z when in normal operation mode, Low when x1 fixed
Signal output from MN1
Enable control of USB high side SW / Control is time-shared by MN1 and SYS_
uCOM
0: Enable
1: Disable
Current limit detection flag of USB high side SW
0: Current limit detected
1: Operating in normal mode
ON/OFF control of CD motor Driver output
0: All Drive Disable
1: All Drive Enable
Selection of CD Loading operation
Detection of inserted HP
0: HP not inserted
1: HP inserted
HP mute control signal
0: HP mute
1: PH output
Detail of Function
U, T, K, A, B, L, V, J models
U, T, K, A, B, L, V, J models
U, T, K, A, G, L, V, J models
B model
G model
G model
B model
CRX-040
CRX-140
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