Service manual

VRX765VD
VRX766VD
- 12 -
052-7078-01 uPD703276YGJ-512UENA System Controller
is for legal or rightholder-authorized copying only. Don't steal
music.
iPod is a trademark of Apple Computer, Inc., registered in the U.S.
and other countries.
TerminalDescription
pin 1: A Vref 0 : - : Reference voltage for the internal ADC.
pin 2: A VSS : - : Negative voltage supply for analog section.
pin 3: SYS ACC : O : ACC detect signal output.
pin 4: SUB MUTE : O : Sub-zone audio mute signal output.
pin 5: A Vref 1 : - : Reference voltage for the internal DAC.
pin 6: RDS CLK :IN: Not in use.
pin 7: AV ON : O : The ON command output to the power
supply section.
pin 8: FLASH :IN: The signal input for the flash memory con-
trol.
pin 9: VDD : - : Positive voltage supply.
pin 10: REG C : - : The capacitor connection.
pin 11: GND : - : Ground.
pin 12: X in : IN: Crystal connection. Main 31.4MHz.
pin 13: X out : O : Crystal connection. Main 31.4MHz.
pin 14: RESET : IN : Reset signal input.
pin 15: XT I : IN: Crystal connection. Sub 32.758kHz.
pin 16: XT O : O : Crystal connection. Sub 32.758kHz.
pin 17: POWER KEY : IN : Power 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: OSD INT :IN: The interrupt signal input for the on
screen display.
pin 22: TUN SDA :I/O: I2BUS serial data input/output for the tun-
er pack.
pin 23: TUN SCL : O : I2BUS serial clock output for the tuner
pack.
pin 24: TP REQ :IN: The request signal from the touch panel
micro computer.
pin 25: iPod/FLASH O : O : Serial data output to iPod or flash memo-
ry.
pin 26: iPod/FLASH IN :IN : Serial data input from iPod or flash mem-
ory.
pin 27: TP RST : O : The reset pulse output to the touch panel
micro computer.
pin 28: DIMMER : O : PWM output.
pin 29: Motor PLS :IN : Motor Pulse input.
pin 30: NAVI ON : O : The image signal ON command output for
the navigation.
pin 31: IE BUS TX : O : IE Bus serial data output.
pin 32: IE BUS RX :IN: IE Bus serial data input.
pin 33: GND : - : Ground.
pin 34: E VDD : - : Positive voltage supply.
pin 35: DSP SDA :I/O: The serial data input/output for the digital
signal processor.
pin 36: DSP SCL : O : SCL output to the digital signal processor.
pin 37: Motor 1 F : O : L = Open.
pin 38: Motor 1 R : O : L = Close.
pin 39: Motor 2 F : O : L = Tilt Up.
pin 40: Motor 2 R : O : L = Tilt Down.
pin 41: OFFSET DET :IN: Offset-detection input.
pin 42: Amp Standby : O : The standby signal output to the amplifi-
er.
pin 43: NU :IN: Not in use.
pin 44: NU :IN: Not in use.
pin 45: NU :IN: Not in use.
pin 46: NU :IN: Not in use.
pin 47: NU :IN: Not in use.
pin 48: NU :IN: Not in use.
pin 49: NU :IN: Not in use.
pin 50: NU :IN: Not in use.
pin 51: NU :IN: Not in use.
pin 52: NU :IN: Not in use.
pin 53: IRI :IN : The remote control signal input.
pin 54: NU :IN: Not in use.
pin 55: NU :IN: Not in use.
pin 56: NU :IN: Not in use.
pin 57: NU :IN: Not in use.
pin 58: OSD RST : O : The reset pulse output for the on screen
display IC.
pin 59: TP RX :IN: The serial data input from the touch pan-
el micro computer.
pin 60: TP TX : O : The serial data output to the touch panel
micro computer.
pin 61: DVD TX : O : The serial data output to the DVD mech-
anism.
pin 62: DVD RX :IN: The serial data input from the DVD mech-
anism.
pin 63: W REMCOM : IN: Wired remote controller signal input.
pin 64: BLKO : O : The 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 : The clock pulse output to the on screen
display IC.
pin 71: OSD CE : O : Chip enable output to on-screen-display
IC.
pin 72: OSD INH : O : Inhibit pulse output to on-screen-display
IC.
pin 73: Freq SEL : O : Frequency select.
pin 74: OPN/CL SW :IN : Open/Close switch signal input.
pin 75: EJECT SW :IN : Eject switch signal input.
pin 76: CATS DET :IN : CATS or DCP detection input.
pin 77: ROM EN : O : ROM enable signal output. L = OSD OFF.
pin 78: NU : O : Not in use.
pin 79: NU :IN: Not in use.
pin 80: iPod PWR ON : O : iPod power ON signal output.
pin 81: Panel ON : O : LCD panel ON signal output.
pin 82: FAN ON : O : The fan on signal output.
pin 83: TV/OTHER : O : Horizontal sync select. H = TV.
pin 84: FLASH READY :IN: Ready signal input from flash memory.
pin 85: EEP DO : O : The serial data output to the EEP-ROM.
pin 86: CLK OUT : O : SUB-CLOCK-PLUSE output.
pin 87: EEP CK : O : The clock pulse output to the EEP-ROM.
pin 88: EEP CE : O : The chip enable signal output to the EEP-
ROM.
pin 89: EEP DI :IN: The serial data input from the EEP-ROM.
pin 90: NU :IN: Not in use.
pin 91: KI 0 :IN : Key scan signal input.
pin 92: KI 1 :IN : Key scan signal input.
pin 93: KI 2 :IN : Key scan signal input.
pin 94: KI 3 :IN : Key scan signal input.
pin 95: KO 0 : O : Key scan signal output.
pin 96: KO 1 : O : Key scan signal output.
pin 97: KO 2 : O : Key scan signal output.
pin 98: KO 3 : O : Key scan signal output.
pin 99: USA/3rd :IN: L = Asia, H = North America.
pin100: Mechanism : IN : L = Without the mechanism.
pin101: NTSC/PAL : IN : NTSC/PAL select signal input. L = NTSC.
pin102: FLASH WR :IN: The write flag input for the flash memory.
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 Ce-NET.
pin107: ILL ON : O : The illumination ON signal output.
pin108: Blink LED : O : LED Blinking signal output.
pin109: DVD ON 2 : O : DVD ON signal output.
pin110: NU : IN: Not in use.
pin111: DVD RST : O : The reset signal output to the DVD mech-
anism.