Aiwa LCX-257, Service Manual Digest

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39
Pin No. Pin Name I/O Description
56-79
80
81
82
83-86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
S24-S47
I-DOOR
I-WRQ
I-DRF
COM0-COM3
O-CDCONT
I-SQOUT
VSS3
VDD3
O-RWC
O-COIN
O-CQCK
O-LIGHT1
O-JOGLED
O-SCONTM
O-SCONTL
O-MUTE
O-LIGHT2
O-SRST
O
I
I
I
O
O
I
—
—
O
O
O
O
O
O
O
O
O
O
LCD SEG terminal initial setting output. (No.28-5)
CD door detection.
Sub-code Q reading stand-by for CD LSI communication.
RF level detection input.
LCD common output. (No.4-1)
CD power supply control.
Sub-code Q input for CD LSI communication.
Power supply - terminal.
GND.
Input/output selector control for CD LSI communication.
Serial data output for CD LSI communication.
Serial clock output for CD LSI communication.
Control output 1 of LCD back light.
Not connected.
Sound processor control.
Audio signal mute output.
Control output 2 of LCD back light.
Not connected.