Aiwa XR-MR5 Service Manual page 30

Cd-r/cd stereo system
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Pin No.
Pin Name
75 ~ 78
D/P6 ~ A/P3
79, 80
P2, P1
81
O-FUNC
82 ~ 84
NC
85
O-KEYSCAN
86
O-FSTB
87
O-POWER
88
O-EXT-DIN
89
VSS2
90
VDD2
91
O-CD-DATA
92
O-CD-CLK
93
O-MUTE
94
O-CDRRES
95
O-SOUT
96
I-SIN
97
I-ACLK
98
I-RREQ
99
O-SRDY
100
O-SREQ
I/O
Panel face detection switch D ~ A input / FL segment output.
SURFACE
ACRYLIC
I/O
SWA OFF
SWB ON
SWC OFF
SWD ON
O
FL segment output.
O
FUNC IC expand port pull up VCC switch output.
Not connected.
O
Segment input timing output. "H" = Input timing.
O
Shift register IC control serial strobe output.
O
System power control output.
O
CD-R/RW digital input select. "H" = Ext Din, "L" = Int CD Dout.
GND.
Power supply.
O
CD DSP IC control data output.
O
CD DSP IC control clock output.
O
Audio signal line mute control output.
O
CD-R/RW reset output.
O
CD-R/RW serial data output.
I
CD-R/RW serial data input.
I
CD-R/RW unit latch clock input.
I
To CD-R/RW unit serial data transfer request control input.
O
CD-R/RW unit latch data ready port control output.
O
From CD-R/RW unit serial data transfer request control output.
– 30 –
Description
OPE KEY
ON
ON
OFF
ON

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