CDX-CA680X/L580X
SECTION 3
DIAGRAMS
3-1. IC PIN DESCRIPTION
Y IC501 MN101C49KSE (SYSTEM CONTROL)
Pin No.Pin NameI/OPin Description
1VREF�NA/D converter power supply (�) pin
2VSMIS-meter voltage detection input
3QUALITYINoise detection input
4, 5KEYIN1, 0IKey input 1, 0
6RCIN0IRotary commander key input
7 � 9NILINot used. (Fixed at L in this set)
10VREF+NA/D converter power supply (+) pin (+5 V)
11VDDNPower supply pin (+5 V)
12OSCOUTOMain clock output (18.432 MHz)
13OSCINIMain clock input (18.432 MHz)
14VSSNGround
15XINISub clock input (32.768 kHz)
16XOUTOSub clock output (32.768 kHz)
17MMODINot used. (Fixed at L in this set)
18LCDSOOSerial data output for LCD driver IC.
19LCDCEOChip enable output for LCD driver IC.
20LCDCKOOSerial clock output for LCD driver IC.
21CD_TSOOSerial data output for CD servo IC.
22CD_TSIISerial data input from CD servo IC.
23CD_TCKOOSerial clock output for CD servo IC.
24SYSRSTOSystem reset output (Used for CDX-CA680X only)
25BUSONOBUS ON output (Used for CDX-CA680X only)
26KEYACKIKey acknowledge detection input
27DAVNIRDS data block synchronization detection input
28BUINIBackup power supply input
29SIRCSISIRCS input
30TU_ATTINITuner attenuator control input
31CD_PACKICD text pack synchronization signal input from CD servo IC.
32NC (VCC)NPower supply pin (+5 V)
33RESETIMicrocomputer reset input
34NOSE-SWIFront panel attachment detection input
35BEEPOBeep output
36NCONot used. (Open)
37TESTINITest mode detection input
38ACCINIAccessory power supply detection input
39NCONot used. (Open)
40TELATTITelephone attenuator detection input
41NC (VCC)INot used. (Fixed at H in this set)
42UNISOOSONY-BUS data output (Used for CDX-CA680X only)
43UNISIISONY-BUS data input (Used for CDX-CA680X only)
44UNICKOOSONY-BUS clock output (Used for CDX-CA680X only)
2
45I2C_SIOI/OC BI US serial data input/output
46NCONot used. (Open)
2
47I2C_CKOOIC BUS serial clock output
48, 49NCONot used. (Open)
50CD_SELFSWICD mechanism deck Self switch detection input
51TSTBOCD text parameter strobe output for CD servo IC.
52RFOKIRFOK signal input from CD servo IC.
53CD_RSTOReset signal output for CD servo IC.
54A0OCommand/parameter discrimination signal output for CD servo IC.
55STBOData strobe signal output for CD servo IC.
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