Clarion McIntosh PF-2520I-A Service Manual page 3

EXPLANATION OF IC
052-3176-10 M30620MCA-F70GP
1.Terminal Description
pin 1: FUNCTION 2 : IN : Low = without MD.
pin 2: FUNCTION 3 : IN : Low = without Cassette tape.
pin 3: AREA 1 : IN : The destination setting input.
pin 4: AREA 2 : IN : The destination setting input.
pin 5: CLK SEL : IN : Low = without Clock.
pin 6: BYTE : IN : Connect to the ground.
pin 7: CN VSS : IN : Connect to VSS.
pin 8: WB SD : IN : WB station detect signal input.
pin 9: VFD ON : O : VFD ON signal output.
pin 10: RESET : IN : Reset signal input.
pin 11: X OUT : O : Crystal connection.
pin 12: GND : - : Ground.
pin 13: X IN : IN : Crystal connection.
pin 14: VDD : - : Positive supply voltage.
pin 15: NMI : IN : Pull up.
pin 16: BU DET : IN : Backup detection signal input.
pin 17: ACC DET : IN : ACC detection signal input.
pin 18: NU : - : Not in use.
pin 19: Ce-NET RX : IN : The serial data input from Ce-NET.
pin 20: ILL ON : IN : Illumination ON signal input.
pin 21: AUDIO OUT : O : Audio signal output command output for
Ce-NET.
pin 22: NAVI MUTE : O : Muting signal output to suppress the
noise without Navigation sound interrupt-
ing.
pin 23: LINE MUTE : O : The line mute signal output.
pin 24: BEEP : O : Beep out.
pin 25: TIME BASE : IN : Time base pulse input.
pin 26: DX/LO : O : DX/Local select signal output.
pin 27: Ce-NET RX : IN : The serial data input from Ce-NET.
pin 28: Ce-NET TX : O : The serial data output to Ce-NET.
pin 29: IX-6 TX : O : Serial data output.
pin 30: IX-6 RX : IN : Serial data input.
pin 31: ST : IN : The stereo flag input.
pin 32: AMP ON : O : Audio power amplifier ON signal output.
pin 33: NU : - : Not in use.
pin 34: NU : - : Not in use.
pin 35: NU : - : Not in use.
pin 36: NU : - : Not in use.
pin 37: NU : - : Not in use.
pin 38: NU : - : Not in use.
pin 39: ANT ON : O : Antenna ON command output.
pin 40: SYS ACC : O : ACC detect signal output.
pin 41: SYS ON : O : System ON signal output.
pin 42: AMP MUTE : O : Muting signal output to the Audio Power
Amplifier.
pin 43: TEL ON : IN : Telephone ON signal input.
pin 44: PLL DI : IN : Serial data input from the PLL IC.
pin 45: VFD BLANK : O : Blank pulse output to the VFD driver.
pin 46: EEP CEO : O : The chip enable signal output to EEP-
ROM.
pin 47: EEP CLK : O : The clock pulse output to EEP-ROM.
pin 48: EEP DO : O : The serial data output to EEP-ROM.
pin 49: EEP DI : IN : The serial data input from EEP-ROM.
pin 50: MD 8V : O : Control signal output to the power supply
circuit.
pin 51: MD LD : IN : Disc-in signal input from the MD mecha-
nism.
pin 52: MD SI : IN : Serial data input from the MD mechanism.
pin 53: MD X SRQ : IN : Request signal input from the MD mech-
anism.
pin 54: MD RESET : O : Reset pulse output to the MD mechanism.
pin 55: MD SO : O : Serial data output to the MD mechanism.
pin 56: MD X SCK : O : The clock pulse output to the MD mech-
anism.
pin 57: MD X CS : O : The chip selection signal output to the
MD mechanism.
pin 58: MD WP : O : Wake up signal output to the MD mech-
anism.
pin 59: CD 8V
pin 60: VDD
System Controller
pin 61: CD 5V
pin 62: GND
pin 63: BUC 0
pin 64: BUC 1
pin 65: BUC 2
pin 66: BUC 3
pin 67: BUC CLOCK
pin 68: CD CE
pin 69: CD RESET
pin 70: S STOP
pin 71: SUB Q SYNC
pin 72: CHU SW
pin 73: NU
pin 74: TR B
pin 75: TR A
pin 76: LD CNT
pin 77: LD MUTE
pin 78: Serial DO
pin 79: VFD DI
pin 80: CKO
pin 81: CEO
pin 82: VFD RESET
pin 83: E VOL 1L
pin 84: E VOL 2L
pin 85: NU
pin 86: NU
pin 87: POWER SW
pin 88: IX-6 LOAD
pin 89: TP/MD EJ
pin 90: CD/IX-6 EJ
pin 91: IX-6 REQUE
pin 92: VFD CS
pin 93: VFD CP
pin 94: A VSS
pin 95: VFD DO
pin 96: Vref
pin 97: A VCC
pin 98: DIM C SEL
pin 99: ILL CONT
pin100: FUNCTION 1
- 3 -
: O : Power supply control signal output for the
motor / photo IC. "H"= ON.
: - : Positive supply voltage.
: O : 5V power supply ON signal output for CD.
: - : 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 : CD IC clock pulse output.
: O : CD chip enable pulse output.
: O : The reset pulse output to the CD IC.
: IN : Inside limit signal input from the CD
mechanism.
: IN : Sub Q Sync signal input.
: IN : CD disc chucking signal input.
: - : Not in use.
: IN : Photo sensor signal input from the CD
mechanism.
: IN : Photo sensor signal input from the CD
mechanism.
: O : Loading control signal output.
: O : Muting signal output to the CD mecha-
nism.
: - : The serial data output.
: IN : Serial data input from the VFD driver.
: O : Clock pulse output.
: O : Chip enable output.
: O : The reset pulse output to the VFD driv-
er.
: IN : Pulse signal input from the rotary encod-
er.
: IN : Pulse signal input from the rotary encod-
er.
: - : Not in use.
: - : Not in use.
: IN : Power switch ON signal input.
: IN : IX-6 loading signal input.
: IN : Tape/MD eject signal input.
: IN : CD/IX-6 eject signal input.
: IN : Reuest signal input from IX-6.
: O : CS signal output to VFD driver.
: O : CP signal output to VFD driver.
: - : Analog ground.
: O : The serial data output to the VFD driver.
: - : Reference voltage.
: - : Positive supply voltage for the internal
analog section.
: IN : Low = Without dimmer canceller.
: IN : The input terminal of internal ADC for
adjusting brightness of the illumination.
: IN : Low = GS-1, High = IX-6.
PF-2520I-A