CLARION 28115 AR260
Service Manual

EXPLANATION OF IC
052-3160-21 MB90583CPFV-G-132 System Controller
pin 54: NU pin 55: NU pin 56: VDD DET : IN : The initial setting input. : - : Not in use. : - : Not in use. : - : Not in use. : - : Not in use. : O : The reset signal output to the tape mechanism. : O : Address latch output to SAE-J1850 communication protocol conformity transmission controller. : IN : Read enable signal input from SAEJ1850 communication protocol conformity transmission controller. : - : Ground. : IN : Write enable signal input from SAEJ1850 communication protocol conformity transmission controller. : O : ON command output to the indicator for "DISC". : O : Reset pulse output to SAE-J1850 communication protocol conformity transmission controller. : O : Chip select output to SAE-J1850 communication protocol conformity transmission controller. : IN : NDS request signal input. : IN : NDS request signal input. : - : Not in use. : - : Not in use. : - : Not in use. : IN : C-BUS serial data in. : O : C-BUS serial data out. : - : Positive supply voltage. : O : C-BUS clock out. : O : The reset pulse output to the CD IC. : IN : C-BUS SRQ. : - : Connect the capacitor. pin 86: J1850 D 3 pin 85: J1850 D 2 pin 84: J1850 D 1 pin 57: DI pin 58: DO pin 59: Clock Out pin 60: CEO pin 61: RDS DATA pin 62: NU pin 63: NU pin 64: NU pin 65: NU pin 66: NU pin 67: NU pin 68: RESET pin 69: ANT ON pin 70: NU pin 71: NU pin 72: NU pin 73: AMP ON pin 74: AF MUTE pin 75: RESET pin 76: SYS ON pin 77: X1A pin 78: X0A pin 79: GND pin 80: X0 pin 81: X1 pin 82: VDD pin 83: J1850 D 0 : - : Not in use. : - : Not in use. : IN : VDD detection signal input. : IN : The serial data input. : O : The serial data output. : O : Clock Out. : O : Chip enable output. : IN : RDS serial data input. : - : Not in use. : - : Not in use. : - : Not in use. : - : Not in use. : - : Not in use. : - : Not in use. : O : Reset signal output. : O : Antenna ON command output. : - : Not in use. : - : Not in use. : - : Not in use. : O : Audio power amplifier ON signal output. : O : Audio frequency signal muting. : IN : Reset signal input. : O : System ON signal output. : - : The crystal connection. : - : The crystal connection. : - : Ground. : - : The crystal connection. : - : The crystal connection. : - : Positive supply voltage. :I/O: Data input/output for SAE-J1850 communication protocol conformity transmission controller. :I/O: Data input/output for SAE-J1850 communication protocol conformity transmission controller. :I/O: Data input/output for SAE-J1850 communication protocol conformity transmission controller. :I/O: Data input/output for SAE-J1850 communication protocol conformity transmission controller. pin 87: J1850 D 4 :I/O: Data input/output for SAE-J1850 communication protocol conformity transmission controller. :I/O: Data input/output for SAE-J1850 communication protocol conformity transmission controller. :I/O: Data input/output for SAE-J1850 communication protocol conformity transmission controller. :I/O: Data input/output for SAE-J1850 communication protocol conformity transmission controller. : - : Not in use. : - : Not in use. : - : Not in use. : - : Not in use. : - : Not in use. : - : Not in use. : - : Not in use. : - : Not in use. : - : Not in use. : O : IF muting output. 1.Terminal Description pin pin pin pin pin pin pin 1: INT 0 2: NU 3: NU 4: NU 5: NU 6: TAPE RESET 7: J1850 ALE

pin

8: J1850 RD

pin

9: GND

pin 10: J1850 WR

pin 11: DISC IND pin 12: J1850 RESET

pin 13: J1850 CS pin 14: NDS REQ 1 pin 15: NDS REQ 2 pin 16: NU pin 17: NU pin 18: NU pin 19: C-BUS SI pin 20: C-BUS SO pin 21: VDD pin 22: C-BUS CLK pin 23: CD RESET pin 24: C-BUS SRQ pin 25: CNNCT C

pin 26: NDS SIG CHG : O : Analog signal changing command output for NDS. pin 27: NDS DAT CHG : O : Digital data changing command output for NDS. pin 28: VDD : - : Positive supply voltage. pin 29: GND pin 30: NU pin 31: NU pin 32: VDD pin 33: VDD pin 34: GND pin 35: GND pin 36: NDS CHG SI pin 38: NU pin 39: NU pin 40: GND pin 42: C-BUS SET pin 43: NU pin 44: NU pin 45: TAPE EJECT pin 46: RDS CLK pin 47: MC MODE 0 pin 48: MC MODE 1 pin 49: MC MODE 2 pin 50: HSTXI pin 51: J1850 INT : - : Ground. : - : Not in use. : - : Not in use. : - : Positive supply voltage. : - : Positive supply voltage. : - : Ground. : - : Ground. : IN : NDS serial data input. : - : Not in use. : - : Not in use. : - : Ground. : O : C-BUS set out. : - : Not in use. : - : Not in use. : IN : Tape eject signal input. : IN : RDS clock pulse input. : IN : Micro computer mode select input. : IN : Micro computer mode select input. : IN : Micro computer mode select input. : - : HSTX input. : IN : Interrupt command input from SAE-J1850 communication protocol conformity transmission controller. : IN : ACC detection signal input. : IN : IVCS ON. pin 91: NU pin 92: NU pin 93: NU pin 94: NU pin 95: NU pin 96: NU pin 97: NU pin 98: NU pin 99: NU pin100: IF MUTE pin 89: J1850 D 6

pin 88: J1850 D 5

pin 90: J1850 D 7

pin 37: NDS CHG SO : O : NDS serial data output.

pin 41: C-BUS RESET : O : C-BUS reset out.

pin 52: ACC ON IN pin 53: IVCS ON

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PN-1740B,K