97
HCD-M90
Pin No.
Pin Name
I/O
Description
41
REC MUTE
O
Recording muting on/off control signal output to the recording/playback equalizer amp
“L”: muting on
42
STBY-LED
O
LED drive signal output of the standby indicator “H”: LED on
43
REC/PB
O
Recording/playback selection signal output to the tape section
“L”: playback mode, “H”: recording mode
44
DA MUTE
O
Muting on/off control signal output terminal Not used
45
DSG-LED
O
LED drive signal output of the DSG (Dynamic Sound Generator) indicator “H”: LED on
46
TC-LED
O
LED drive signal output of the TAPE indicator “H”: LED on
47
CD-SYNC LED
O
LED drive signal output of the CD SYNCHRO indicator “H”: LED on
48
CD-LED
O
LED drive signal output of the DVD indicator “H”: LED on
49
TU-LED
O
LED drive signal output of the TUNER indicator “H”: LED on
50
H/P DETECT
I
Headphone jack connection detection signal input terminal
“L”: no connected, “H”: headphone connected
51
BACK LIGHT
O
Power on/off control signal output to the liquid crystal display and back light “H”: power on
52
VILUME B
—
Not used
53
VILUME A
—
Not used
54
LD ON
O
Interrupt request signal output to the DVD system controller
55
1-4
—
Not used
56
SENS
O
System OK signal output to the DVD system controller
57
TUNED
I
Automatic limiter control signal input from the tuner unit
58
BTRG
O
Trigger plunger on/off control signal output “H”: plunger on
59
CAPM CONT1
O
Capstan/reel motor on/off control signal output “H”: motor on
60
XRST
O
Reset signal output to the DVD system controller “L”: reset
61
CTRL1-2
—
Not used
62
VCC
—
Power supply terminal (+4V)
63
SOFT-TEST
O
Test terminal Not used
64
VSS
—
Ground terminal
65
SYSPWR
O
DVD system power supply on/off control signal output “L”: power on
66
CD MUTE
O
Muting on/off control signal output terminal Not used
67
LOAD OUT
I
Loading out detect signal input terminal Not used
68
LOAD IN
I
Loading in detect signal input terminal Not used
69
OPEN
I
Disc tray open detect signal input terminal Not used
70
CLOSE
I
Disc tray close detect signal input terminal Not used
71
BASS A
—
Not used
72
BASS B
—
Not used
73
DISPLAY KEY
I
Key input terminal Not used
74
POWER KEY
I
Power key input terminal
75
PC POWER
—
Not used
76
TREBLE A
—
Not used
77
TREBLE B
—
Not used
78
MDM POWER
—
Not used
79
INPUT SEL
O
Data input select control signal output to the D/A converter
80
ALC
O
Automatic limiter control signal output to the recording/playback equalizer amplifier
“L”: limiter on
81
LINE MUTE
O
Audio line muting on/off control signal output “H”: muting on
82
STBY RLY
O
Main system power supply on/off control signal output “H”: power on
83
FAN CONT
O
Fan motor control signal output terminal Not used
