Kenwood KIV-700 Service Manual page 7

MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name I/O
75 SDA EVOL SDA I/O Data output from system u-com to E-VOL
76 SCL DSP SCL I/O I2C clock for DSP
76 SCL E2P SCL I/O I2C clock for the mother E2PROM
76 SCL EVOL SCL I/O Clock output from system μ-com to E-VOL
77 LX MUTE
78 LX CON
79 LX RST
80 MUTE PRE
81 MUTE PRE SW
82 PON AM I/O AM+B power supply control
83 TUN IFC OUT
84 TUN SMETER
85 RDS NOISE
86 RDS AFS M I/O Noise detection time constant SW
87 NC
88 TRIANGLE ILL
89 VARI1 B
90 VARI1 G
91 VARI1 R
92 VARI0 B
93 VARI0 G
94 AVSS
95 VARI0 R
96 VREF
97 AVCC
98 LX DATA S
99 LX DATA M
100 LX CLK I/O LX-BUS clock
Application
I Mute request from slave unit
O Start-up request to salve unit
O Forced reset to slave unit
O External preout mute
O External preout mute (SUB)
I Front-end IFC-OUT input
I S-meter voltage detection
I FM noise voltage detection
- Not used
O Triangle LED control
O Panel scroll bar variable BLUE
O Panel scroll bar variable GREEN
O Panel scroll bar variable RED
O Panel L & R key variable BLUE
O Panel L & R key variable GREEN
-
O Panel L & R key variable RED
-
-
I Data from slave unit
O Data to slave unit
KIV-700/BT900
Truth
Processing / Operation / Description
Value Table
H: Mute ON, L: Mute OFF
H: Slave unit ON, L: Slave unit OFF
H: Reset, L: Normal
0-bit or momentary power-down: L,
L: Mute ON
0-bit or momentary power-down: L,
L: Mute ON
H: AM station found, Hi-Z: Others
H: Station found, L: No station
L: AF search, Hi-Z: Normal
Output L fi xed
H: Turned ON, L: Turned OFF
PWM control (100Hz)
PWM control (100Hz)
PWM control (100Hz)
PWM control (100Hz)
PWM control (100Hz)
PWM control (100Hz)
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