Pin No.
Pin Name I/O Description Processing Operation
50 N.C. O Not used
51 AVDD - VDD connection terminal Connected to BU 5V lines
52 AVREF 0 -
VDD connection terminal(A/D converter reference
Connected to BU 5V lines
voltage input)
53 PHONE I PHONE detection input
1V or less: TEL MUTE, 2.5V or greater: NAVI MUTE
54 N.C. I Not used Connected to GND
55 NIOSE I Noise detection input
56 S-METER I S-meter input from the F/E(tuner)
57 N.C. I Not used Connected to GND
58 N.C. I Not used Connected to GND
59 N.C. I Not used Connected to GND
60 M-MUTE I Mute request from the MI-COM. of MD mecha. “Lo”: Mute requested
61 AVSS - Ground connection terminal(A/D, D/A converter) Connected to GND
62 N.C. O Not used
63 M-RST O Reset output to the MI-COM. of MD mecha. “Lo”: Reset
64 AVREF 1 -
VDD connection terminal(D/A converter reference
Connected to BU 5V lines
voltage input)
65 DATA C I Data input from changers
66 DATA H O Data output to changers
67 CH-CLK I/O Clock input/output with changers
68 L-DATAL I Data input from the LCD driver IC
69 L-DATAS O Data output to the LCD driver IC
70 L-CLK O Clock output to the LCD driver IC
71 M-STOP O Stop request to the MI-COM. of MD mecha. “Lo”: Stop, “Hi”: during the movement
72 BEEP O BEEP sound output
73 N.C. O Not used
74 N.C. O Not used
75 N.C. O Not used
76 LOE-SW I
MD loading complete detection SW input terminal
“Lo”: MD loading completion
77 EJECT O
MD mecha. Loading/Eject switching output terminal
Standby : (EJECT, LOAD)=(Lo, Lo)
Eject : (EJECT,
LOAD)=(Hi, Lo)
78 LOAD O
MD mecha. Loading/Eject switching output terminal
Loading : (EJECT, LOAD)=(Lo, Hi)
Brake : (EJECT,
LOAD)=(Hi, Hi)
79 L-INH O INH output to the LCD driver IC “Hi”: Active, “Lo”: LCD indication OFF
80 L-CE O CE output to the LCD driver IC “Hi”: Active
81 PANEL I Panel detaching detection input “Lo”: Panel not detached
82 N.C. O Not used
83 N.C. O Not used
84 QUAL I Quality input from RDS decoder
85 R-DATA I Data input from RDS decoder
86 N.C. O Not used
87 N.C. O Not used
88 SD I SD input from the F/E(tuner) “Hi”: Station detected, “Lo”: Not detected
89 N.C. O Not used
90 N.C. O Not used
91 N.C. O Not used
92 AFC O Noise detection time constant switching terminal “Lo”: During FM seek, “Hi”: During FM reception
93 N.C. O Not used
94 N.C. O Not used
95 N.C. O Not used
96 AM+B O AM+B control “Hi”: during AM reception
97 FM+B O FM+B control “Hi”: during FM reception
98 ST TYPE 0 I IC2 stereo data setting terminal “Lo”: Initial value
99 ST TYPE 1 I IC2 stereo data setting terminal “Lo”: Initial value
100 VSS - Ground connection terminal Connected to GND
KMD-671R
5
KMD-671R
6

MICROCOMPUTER'S DESCRIPTION ADJUSTMENT

TEST MODE

1. To enter test mode
While holding the “FM” key and preset “6” key, reset the unit.
All indication segments are ON at the beginning of test mode.
2. To release test mode
Simply reset the unit.
(NOTE) The test mode is not canceled by ACC OFF, power
OFF, momentary power down.
3. MD receiver test mode specification
Pressing the “Track Up” key jumps between tracks in the
following order.
No.7 → No.2 → No.13 → No.23 → No.30 → No.34 → No.7
(Same as the beginning)
Pressing the “Track Down” key jumps to the previous track
to the being played.
Pressing the preset “1” key jumps to No.28 track. Again
pressing the preset “1” key jumps to No.22 track.
4. Audio adjustment
The volume is set to -10dB (which is shown as 30).
Loudness is OFF. CRSC becomes OFF regardless of the
functional excuse, too.
The BASS / TREBLE and BALANCE / FADER controls can
be set to the full boost / full cut and full front / full rear and full
right / full left respectively by pressing the “Track Up” / “Track
Down” keys.
Sound coordination(Kex / ec4 / dB) doesn't appear for the
Audio mode feed.