VX709
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EXPLANATION OF IC
IC503 NEC uPD70F3348GJ-UEN-A
Main Controller
Terminal Description for QZ-6074B-A
pin
1: A Vref 0
: - : Analog reference voltage.
pin
2: A VSS
: - : Analog ground.
pin
3: T S DATA
:I/O: BUS-TUNER serial data input/output.
pin
4: T S CK
: O : BUS-TUNER serial clock output.
pin
5: A Vref 1
: - : Analog reference voltage.
pin
6: RDS CK
: IN : RDS clock pulse input.
pin
7: AV ON
: O : On command output to the power supply
section.
pin
8: FLASH MODE
: IN : Flash memory mode setting input.
pin
9: VDD
: - : Positive voltage supply.
pin 10: REG C
: - : Capacitor connection.
pin 11: GND
: - : Ground.
pin 12: X in
: IN : Crystal connection.
pin 13: X out
: O : Crystal connection.
pin 14: RESET
: IN : Reset signal input.
pin 15: XT I
: IN : Oscillation terminal.
pin 16: XT O
: O : Oscillation terminal.
pin 17: SOURCE
: IN : Source Key input.
pin 18: BU 9V DET
: IN : Backup 9V detection.
pin 19: BU 6V DET
: IN : Backup 6V detection.
pin 20: NU
: IN : Not in use.
pin 21: CATS DET
: IN : Backup voltage detection for CATS.
pin 22: DSP SDA
:I/O: Serial data input/output for the digital sig-
nal processor.
pin 23: DSP SCL
: O : Clock pulse output to the DSP IC.
pin 24: HSY INH
: O : Internal/External synchronisation select.
pin 25: FLASH TX
: O : Flash memory Serial data output.
pin 26: FLASH RX
: IN : Flash memory Serial data input.
pin 27: ENAB
: O : Reset pulse output to the inverter IC.
L=reset.
pin 28: DIMMER
: O : PWM output.
pin 29: M PLS
: IN : Motor pulse input.
pin 30: NAVI ON
: O : The image signal ON command output for
the navigation.
pin 31: BUS +
: O : IE-BUS data output.
pin 32: BUS -
: IN : IE-BUS data input.
pin 33: GND
: - : Ground.
pin 34: VDD
: - : Positive voltage supply.
pin 35: USB S DATA
:I/O: USB serial data input/output.
pin 36: USB S CK
: O : USB serial clock output.
pin 37: Motor 1 F
: O : H = Open.
pin 38: Motor 1 R
: O : H = Close.
pin 39: Motor 2 F
: O : H = Tilt Up.
pin 40: Motor 2 R
: O : H = Tilt Down.
pin 41: Motor PWR
: O : L = High Speed.
pin 42: OFFSET DET
: IN : The emergency signal input from the pow-
er IC.
pin 43: SYS ACC
: O : ACC detection signal output.
pin 44: USB RESET
: O : USB reset output.
pin 45: USB ACC
: O : USB ACC ON signal output.
pin 46: USB REQ
: IN : USB request input.
pin 47: Amp Standby
: O : Standby signal output to the amplifier.
pin 48: AMP MUTE
: O : Muting signal output to the Audio power
amplifier.
pin 49: DT RESET
: O : DT IC reset output.
pin 50: ANT REV
: IN : DT IC signal input.
pin 51: XM ON
: O : XM ON signal output.
pin 52: LINE ACT
: IN : DT IC signal output.
pin 53: IRI
: IN : The remote control signal input.
pin 54: SUB S DATA
:I/O: Sub controller serial data input/output.
pin 55: SUB S CK
: O : Clock pulse output to the sub micro com-
puter.
pin 56: INES ON
: O : Inner escutcheon illumination ON signal
output.
pin 57: TV MODE
: O : TV MODE signal output.
pin 58: OSD RST
: O : Reset pulse output for the on screen dis-
play IC.
pin 59: XM RX
: IN : XM serial data input.
pin 60: XM TX
: O : XM serial data output.
pin 61: DVD TX
: O : Serial data output to the DVD mechanism.
pin 62: DVD RX
: IN : Serial data input from the DVD mecha-
nism.
pin 63: W REMCOM
: IN : Wired remote controller signal input.
pin 64: BLKO
: O : Blanking signal output.
pin 65: VID / RGB
: O : L = Video, H = RGB.
pin 66: FL ON
: O : The fluorescent light of the LCD ON sig-
nal output.
pin 67: BEEP
: O : Beep out.
pin 68: OSD RX
: IN : Serial data input from on-screen-display
IC.
pin 69: OSD TX
: O : Serial data output to on-screen-display IC.
pin 70: OSD SCK
: O : Clock pulse output to the on screen dis-
play IC.
pin 71: OSD CE
: O : Chip enable output to on-screen-display
IC.
pin 72: SUB RQST
: IN : The request signal input from the sub
micro computer.
pin 73: SUB RESET
: O : Sub reset output.
pin 74: OPN/CLS KEY
: IN : Open / close key input.
pin 75: EJECT SW
: IN : Eject switch signal input.
pin 76: DCP DET
: IN : DCP detection siganl input.
pin 77: ROM EN
: O : ROM enable signal output.
pin 78: OSD DOT 1
: O : OSD DOT 1
pin 79: OSD DOT 2
: O : OSD DOT 2
pin 80: OSD DOT 3
: O : OSD DOT 3
pin 81: Panel ON
: O : LCD panel ON signal output.
pin 82: FAN ON
: O : The fan on signal output.
pin 83: Freq SEL
: O : Frequency select.
pin 84: FROM RY/BY
: IN : FROM ready / busy. L = busy.
pin 85: EEP DO
: O : Serial data output to EEP-ROM.
pin 86: NU
: O : Not in use.
pin 87: EEP SCK
: O : Clock pulse output to EEP-ROM.
pin 88: EEP CE
: O : EEP-ROM chip enable signal out.
pin 89: EEP DI
: IN : Serial data input from EEP-ROM.
pin 90: NU
: IN : Not in use.
pin 91: KS in 0
: IN : Key scan input.
pin 92: KS in 1
: IN : Key scan input.
pin 93: KS in 2
: IN : Key scan input.
pin 94: NU
: IN : Not in use.
pin 95: KS out 0
: O : Key scan output.
pin 96: KS out 1
: O : Key scan output.
pin 97: KS out 2
: O : Key scan output.
pin 98: NU
: O : Not in use.
pin 99: USA/3rd
: IN : L = 3rd area, H = North America.
pin100: NTSC/PAL
: IN : NTSC/PAL select signal input.
pin101: XM OC
: IN : XM over current signal input.
pin102: NU
: IN : Not in use.
pin103: B VSS
: - : Ground for the bus interface section.
pin104: B VDD
: - : Positive voltage supply for the bus inter-
face section.
pin105: ILL DET
: IN : Illumination ON signal input.
pin106: BUS ILL
: O : Illumination-ON signal output for the Ce-
NET.
pin107: ILL ON
: O : The illumination ON signal output.
pin108: Blink LED
: O : LED Blinking signal output.
pin109: D IND
: O : H = Disk indicator ON.
pin110: NU
: IN : Not in use.
pin111: NU
: IN : Not in use.
pin112: DSP RST
: O : Reset pulse output to the DSP IC.
pin113: DSP INIT
: IN : Initial finished signal input from the Radio-
Audio-DSP.
pin114: NU
: IN : Not in use.
pin115: NU
: IN : Not in use.
pin116: AM/FM 8V ON : O : AM/FM 8V ON signal output.
