Kenwood KIV-700 Service Manual page 6

KIV-700/BT900
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
40 SOC RST
41 SOC STOP
42,43 NC
44 CE
45 TYPE 2
46 TYPE 1
47 TYPE 0
48 ZERO MUTE
49 PON ILL
50 PON 3.3V
51 NC
52 PON
53~55 NC
56 P-CON
57 ANT CON
58 ACC DET
59 ILLUMI DET
60 VCC2
61 NC
62 VSS
63 LINE MUTE
64 DSP PDN
65 PON 4VPRE
66 MUTE 0
67 MUTE 1
68 MUTE 2
69 PWIC DC DET
70 MUTE AFS
71 PWIC MUTE
72 PWIC STBY
73 LX REQ S
74 LX REQ M
75 SDA DSP SDA
75 SDA E2P SDA
6
I/O Application
O SOC reset
O SOC stop
O Not used
I "Not used" except during writing
I Destination setting
I Destination setting
I Destination setting
I ZERO mute detection
I/O Panel LED power supply control
I/O SOC power supply 3.3V control
- Not used
I/O Power supply control
- Not used
I/O P-CON control
I/O ANT-CON control
I ACC detection
I Dimmer illumination detection
-
- Not used
-
I Line mute detection
O DSP reset
I/O 4V-PRE power supply control
O E-VOL front mute control
O E-VOL rear mute control
O E-VOL switching mute control
I DC offset detection
I/O IC-2 mute control (AFS mute)
O Power IC mute
O Power IC standby
I Communication request from slave unit
O Communication request to slave unit
I/O I2C data for DSP
I/O I2C data for the mother E2PROM
Truth
Processing / Operation / Description
Value Table
H: Reset, L: Normal
H: SOC stopped, L: Normal
Output L fi xed
Output fi xed
L: ZERO mute ON
H: ON, Hi-Z: OFF (During POWER OFF)
H: ON, Hi-Z: OFF
Output L fi xed
H: ON, Hi-Z: OFF
Output L fi xed
POWER ON: H, POWER OFF: Hi-Z,
STANDBY source: Hi-Z
TUNER source: H, Others: Hi-Z
ACC found: L, No ACC: H
L: ON, H: OFF
Output L fi xed
KIV-700 TEL mute: Below 1V, NAVI
mute: Over 2.5V
KIV-BT900 NAVI mute: Over 2.5V
H: Normal, L: Reset
H: ON, Hi-Z: OFF
L: Mute ON, H: Normal (Time constant
isolation setting: 10ms)
L: Mute ON, H: Normal (Time constant
isolation setting: 10ms)
L: Mute ON, H: Normal (Time constant
isolation setting: 10ms)
L: Mute ON, Hi-Z: Normal (Time constant
isolation setting: 0.48ms)
STANDBY source or momentary power-
down: L, TEL mute: L
POWER ON: H, POWER OFF: L