– 24 –
Pin No.
Pin Name
I/O
Function
44
COM-DOUT
O
Serial data output to the electrical volume (IC201) and key control (IC501)
45
COM-CLK
O
Serial data transfer clock signal output to the electrical volume (IC201) and key control (IC501)
46
CD-POWER
O
Power on/off selection signal output for the CD circuit “H”: power on
47
CD-DATA
O
Serial data output terminal Not used (open)
48
CD-CLK
O
Serial data transfer clock signal output terminal Not used (open)
49
MSM-CND
O
Command data output terminal Not used (open)
50
MSM-BUSY
I
Busy signal input terminal “L”: busy Not used (fixed at “L”)
51
MSM-LAT
O
Serial data latch pulse output terminal Not used (open)
52
MSM-NAR
I
NAR signal output terminal Not used (open)
53
MSM-CH
O
Channel select output terminal Not used (open)
54
INPUT-
CHANGE
O
Input gain control signal output terminal “L”: VIDEO, “H”: MD Not used (open)
55
IIC-DATA
I/O
Communication data bus with the fluorescent indicator tube driver (IC601) and IIC interface
controller (IC901)
56
IIC-CLK
I/O
Communication data reading clock signal input or transfer clock signal output with the
fluorescent indicator tube driver (IC601) and IIC interface controller (IC901)
57
XRST
O
Reset signal output to the IIC interface controller (IC901) “L”: reset
58
XLT
O
Serial data latch pulse output terminal Not used (open)
59
FOCUS-SW
O
Focus control signal output terminal Not used (open)
60
TBL-L
O
Motor drive signal output to the disc tray turn motor driver (IC201)
61
TBL-R
O
Motor drive signal output to the disc tray turn motor driver (IC201)
62
TRAY-LED
O
LED on/off control signal output for the CD tray LED “H”: LED on
63
LOAD-OUT
O
Motor drive signal output terminal Not used (open)
64
LOAD-IN
O
Motor drive signal output terminal Not used (open)
65
ST-CLK
O
PLL serial data transfer clock signal output to the FM/AM tuner unit
66
ST-DIN
I
PLL serial data input from the FM/AM tuner unit
67
ST-DOUT
O
PLL serial data output to the FM/AM tuner unit
68
ST-CE
O
PLL chip enable signal output to the FM/AM tuner unit
69
TUNED
I
Tuning detection signal input from the FM/AM tuner unit “L”: TUNED
70
STEREO
I
FM stereo detection signal input from the FM/AM tuner unit “L”: STEREO
71
VSS
—
Ground terminal
72
ST-MUTE
O
Tuner mute control signal output to the FM/AM tuner unit “L”: mute on
73
SENS2
I
Internal status (SENSE) signal input terminal Not used (fixed at “L”)
74
SENS
I
Internal status (SENSE) signal input terminal Not used (fixed at “L”)
75
DISC-SENS
I
Disc status detection signal input terminal Not used (open)
76
T-SENS
I
Disc tray status detection signal input from the disc tray sensor (IC202)
77
UPSW
I
Detection input from the up switch (S201)
78
ENC3
I
79
ENC2
I
Tray address detect signal input terminal Not used (open)
80
ENC1
I
81
OUT-OPEN
I
Disc tray open/close detect signal input terminal “L”: open, “H”: close Not used (open)
82
CAP-H/N
O
High/normal speed selection signal output of the capstan motor (M1)
“L”: high speed, “H”: normal speed
83
A-TRG
O
Motor drive signal output to the trigger motor driver (IC1502)
84
B-TRG
O
Motor drive signal output to the trigger motor driver (IC1502)
85
TRG-LOW
O
Motor control signal output to the trigger motor driver (IC1502)
86
CAP-M-ON/OFF
O
Capstan motor on/off control signal output terminal “L”: capstan motor on
