Alpine 7516M - Page 31

Symbol
140
7516M/7516M:
/7516L
Terminal Description
PWR ON+5 O
Develops high during PWR SW ON or IN PAUSE ON.
DTS CE
0
DTS CE control terminal, Develops high at IGN ON and low at OFF,
Used by pulling down through 47k ohm,
SDK BUZ ON
Terminal to switch audio signal when developing SDK buzzer sound after 25 sec
SK OFF,
H:SDK buzzer on mode,
L: Modes other than above
——
CHANGER ON
j__
NC
Terminal to switch audio signal in changer mode.
H: Changer mode
L: Modes other than changer mode
NC
DOLBY B
Terminal to switch on Dolby IC in Dolby ON mode in Tape mode,
H: Dolby B mode
L: Modes other than above
KEY P/YS
Parallel “Serial setting output terminal for shift register used to read key matrix.
Vss
GND potential terminal
PWR SW ON
POWER SW ON detection terminal, Operation stops in high level,
Active low level,
CHANGER
DATA IN
BAT+5
Ignition current detection terminal, Detects a falling edge and enters standby mode,
Active high level.
CD CHANGER balance input terminal.
BATTERY power supply detection terminal, Detects falling edge and enters
STANDBY mode. Active high level,
Initial setting input terminal.
Sets destinations by varying combinations of AREA 0 and 1,
Initial setting input terminal,
Sets destinations by varying combinations of AREA 0 and 1,
GND
NC
Turns on or off standby terminal of POWER IC.
1H]: Releases standby of POWER IC.
L:POWER IC standby
NC
NC
Terminal to develop buzzer sound after 25 sec SK OFF,
560 (mS) 80 (mS)
<< -
WI TI
Frequency, waveform
| | | Je 50002 square wave, duty 50: 50
Serial data signal input terminal for DTS microcomputer.
Serial data signal output terminal for DTS microcomputer,
Input terminal for communication data sync signal sent from DTS microcomputer.
VOL PUSH KEY
Terminal to detect VOL PUSH KEY is paused. Pulled up to PWR ON+5V.,
TUNER mode: DX, TAPE mode: PROG, CD mode: DISC SELECT,
Active low level,
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