EXPLANATION OF IC
052-1173-50 pin pin pin pin pin pin pin pin pin uPD178078GF-715-3BAA System Controller
pin 55: NU pin 56: CNGND pin 57: NU pin 58: NU pin 59: BEEP pin 60: RADIO ON pin 61: DIM PWM pin 62: CD RESET pin 63: FRONT MUTE pin 64: REAR MUTE pin 65: NU pin 66: FM ON pin 67: AM ON pin 68: CD ON pin 69: NDS RX pin 70: NDS TX pin 71: NDS REQ pin 72: RF MUTE pin 73: DX/LO pin 74: SYS ON pin 75: AMP ON pin 76: AMP MUTE pin 77: NU pin 78: ACC IN pin 79: ILL PULSE pin 80: A/C SEL pin 81: SBSY pin 82: GND pin 84: BUS 0 pin 85: BUS 1 pin 86: BUS 2 pin 87: BUS 3 pin 88: BUS CLCK pin 89: CCE pin 90: GS1 TEST pin 91: S STOP pin 92: CHU SW pin 93: TR B pin 94: TR A pin 95: LD CONT pin 96: LD MUTE pin 97: NU pin 98: BAND SEL pin 99: VDD pin100: GND
: - : Not in use. : - : PLL down. : - : Not in use. : - : Not in use. : O : Beep out. : O : Radio ON signal output. : O : Dimmer PWM output. : O : The reset pulse output to the CD IC. : O : The audio mute signal output for the front channels. : O : The audio mute signal output for the rear channels. : - : Not in use. : O : FM ON signal output. : O : AM ON signal output. : O : CD ON signal output. : IN : NDS serial data input from NDS-A/C. : O : NDS serial data output to NDS-A/C. : IN : The request pulse from NDS. : O : Radio frequency signal muting. : O : DX/Local select signal output. : O : System ON signal output. : O : Audio power amplifier ON signal output. : O : Mute signal output to audio power amplifier. : - : Not in use. : IN : ACC detection signal intput. : IN : Illumination control signal input. : IN : Low = without A/C. : IN : Sub code block synchronous signal detection input. : - : Ground. :I/O: CD IC Data input / output. :I/O: CD IC Data input / output. :I/O: CD IC Data input / output. :I/O: CD IC Data input / output. : O : Clock pulse output to the CD IC. : O : The chip enable signal output. : O : Test data output. : IN : Inside limit signal input from the CD mechanism. : IN : CD disc chucking signal input. : IN : Photo sensor signal input from the CD mechanism. : IN : Photo sensor signal input from the CD mechanism. : IN : Loading control signal input. : O : Muting signal output to the CD mechanism. : - : Not in use. : IN : Band selection input. : - : Positive supply voltage. : - : Ground.
1: EJECT SW 2: NAVI ON 3: NU 4: VOL DATA 5: VOL CLK 6: VOL CE 7: NU 8: LCD DI 9: LCD DO
: IN : Eject switch signal input. : IN : NAVI ON signal input. : - : Not in use. : O : The serial data output to the volume IC. : O : The clock pulse output to the volume IC. : O : The chip enable signal output to the volume IC. : - : Not in use. : IN : The srial data input from the LCD driver. : O : The srial data output to the LCD driver. : O : The clock pulse output to the LCD driver. : O : The chip enable signal output to the LCD driver. : O : Reset pulse output to LCD driver. : IN : Power switch ON signal input. : IN : Volume control pulse input from the rotary encoder. : IN : Volume control pulse input from the rotary encoder. : - : Not in use. : IN : Illumination ON signal input. : - : Not in use. : - : Not in use. : - : Not in use. : - : Not in use. : - : Not in use. : IN : Remote control signal input. : IN : Remote control signal input. : IN : The analog voltage input for illumination signal. : - : Not in use. : - : Positive supply voltage for the Analog section. : - : Not in use. : - : Not in use. : - : Not in use. : - : Not in use. : - : Analog ground. : IN : The capacitor connection terminal to suppress the ripple. : - : Positive supply voltage. : IN : The capacitor connection terminal to suppress the ripple. : - : Crystal connection. : - : Crystal connection. : - : Ground. : - : Not in use. : - : Ground. : IN : The input terminal of the internal counter for AM IF. : IN : The input terminal of the internal counter for FM IF. : - : Positive supply voltage for the PLL. : IN : The input terminal of the internal counter for FM OSC ( Local Oscillation ). : IN : The input terminal of the internal counter for AM OSC ( Local Oscillation ). : - : Ground for the PLL. : O : PLL error signal output. : - : Not in use. : IN : Connect to the ground. : IN : Reset signal input. : IN : Telephone ON signal input. : - : Not in use. :I/O: Outputs "L" at AM 900kHz receiving. Inputs "L" at FM stereo receiving. : - : Not in use.
pin 10: LCD CLK pin 11: LCD CE pin 12: LCD RST pin 13: POWER SW pin 14: VOL 1 pin 15: VOL 2 pin 16: NU pin 17: ILL pin 18: NU pin 19: NU pin 20: NU pin 21: NU pin 22: NU pin 23: REM A pin 24: REM B pin 25: ILL AD pin 26: NU pin 27: A VDD pin 28: NU pin 29: NU pin 30: NU pin 31: NU pin 32: A VSS pin 33: REG CPU pin 34: VDD pin 35: REG OSC pin 36: X 2 pin 37: X 1 pin 38: GND pin 39: NU pin 40: GND pin 41: AM IF IN pin 42: FM IF IN pin 43: VDD PLL pin 44: FM OSC IN pin 45: AM OSC IN pin 46: GND PLL pin 47: VT pin 48: NU pin 49: IC pin 50: RESET pin 51: TEL ON pin 52: NU pin 53: ST/TWEET pin 54: NU
pin 83: CD CONNECT : IN : CD connection check signal input.
