Kenwood KVT-M707Y, Service Manual

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14
KVT-M707/M707Y
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No. Pin Name I/O Application
Truth Value
Processing Operation Description
Table
69 SYS MREQ I Request from system
µ
-com
70 SYS SREQ O Request to system
µ
-com
71 AVDD -
72 AVSS -
73 AVREF -
74 DC ERR I DC offset error detection Low at detection
75 LINE MUTE I LINE MUTE detection
Normal: 1.6V, TEL MUTE: 1V or lower
NAVI MUTE: 2.5V or higher
76 TYPE2 I Destination setting
u
Refer to Truth Value Table
77 TYPE1 I Destination setting
u
Refer to Truth Value Table
78 TYPE0 I Destination setting
u
Refer to Truth Value Table
79 OEM TYPE1 I OEM destination setting
y
Refer to Truth Value Table
80 OEM TYPE0 I OEM destination setting
y
Refer to Truth Value Table
When writing to E2PROM from outside,
81 EEPROM WRT I Write detection at ROM correction
Hi input with a jig (Common use SCL
and SDA stop operation)
In other cases, Low (Pull-down)
82 TYPE3 I Destination setting
u
Refer to Truth Value Table
83 TUN IFC OUT I Front-end IFC OUT input terminal H: With station, L: Without station
84 TUN SMETER I S-meter input
85 RDS NOISE I FM noise detection
86 TV SDATA I Data from TV unit
87 BU DET I Backup reduced electric power detection
With 8.8V or more: Low
At reduced electricity (8.8V or less ): Hi
88 LX REQ S I Communication request from slave unit
89 SYS ON I ON/OFF control from system control
µ
-com H: X34 Unit ON, L: X34 Unit OFF
90 TV SREQ I Request from TV unit
91 TV MDATA O Data to TV unit
92 TV MREQ O Request to TV unit
93 RDS CLK I RDS decoder CLK input
94 LX DATA S I Data from slave unit
95 LX DATA M O Data to slave unit
96 LX CLK I/O LX BUS clock
97 NC -
98 TV JUDGE I TV tuner old/new identification H: Old, L: New
99 TV CLK O Clock to TV unit
100 TUN SDA I/O Front-end I2C data input/output terminal
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