7
KDC-W237AY/W237GY/W3037AY/W3037GY/
W311AY/W311GY/W3537AY/W3537GY/W4037Y
Pin No. Pin Name I/O Application
Truth Value
Processing Operation Description
Table
63 NC - Not used Output L fixed
64 VSS -
65 RDS AFS M I/O Noise detection time constant switching wRefer to the truth value table
66 TUN IFC OUT I Front-end IFC-OUT input H: Station found, L: No station
67
PON EXT GND
I/O IC2 external input quick charge control
L: OFF, Hi-Z:Quick charge, When IC2 is in source select:
Hi-Z, Mute L: L, Momentary power down/Power OFF: L
68 MUTE I/O Mute L: Mute OFF, Hi-Z: Mute ON
69
ANALOG CON
OAUX/LX audio switching AUX: H (Switches after 100ms after first-out mute
begins to work), LX/Other source: L
70 LX RST O Forced reset to slave unit H: Reset, L:Normal
71 LX CON O Start-up request to slave unit H: Slave unit ON, L: Slave unit OFF
72 LX MUTE I Mute request from slave unit H: Mute ON, L: Mute OFF
73 LX REQ M O Communication request to slave unit
74 RDS CLK I RDS decoder clock input
75 LX REQ S I Communication request from slave unit Pull-down (GND)
76 PWIC SVR O SVR discharging circuit During 500ms after momentary power down: H,
Since then: L
77 PWIC STBY O Power IC standby control Power ON: H, Power OFF: L
78 PWIC MUTE O Power IC mute STANDBY source/Momentary power down:L,
TEL mute: L
79 ACC DET I ACC power supply detection ACC found: L, No ACC: H
BU found: L, No BU/Momentary power down:H
80 BU DET I Detection of momentary power down (Operates after less than 4ms after momentary
power down is detected)
81,82 NC O Not used Output L fixed
83 RDS NOISE I FM noise detection
84 TUN SMETER I S-meter input
85 TYPE1 I Destination switching eRefer to the truth value table
86 TYPE2 I Destination switching eRefer to the truth value table
87
PWIC DC DET
IDC offset detection
If DC offset is found 20 times in 100ms with condition
of over 1.0V, it will be judged as DC offset detected.
88 LINE MUTE I Line mute selection TEL mute: Below 1V, NAVI mue: Over 2.5V
89 OFFSET DET I Power IC offset detection
90 PS2 2 O Power supply IC control rRefer to the truth value table
91 PS2 1 O Power supply IC control rRefer to the truth value table
92 PS1 1 O Power supply IC control rRefer to the truth value table
93 PS1 2 O Power supply IC control rRefer to the truth value table
94 PS1 3 O Power supply IC control rRefer to the truth value table
95 PON - Not used POWER ON:H, POWER OFF: L
MICROCOMPUTER’STERMINAL DESCRIPTION
