7-33. IC PIN FUNCTION DESCRIPTION
? MAIN BOARD IC501 mPD780018AYGF-012-3BA (SYSTEM CONTROLLER)
Pin No.Pin NameI/OFunction
1LINE-MUTEOLine muting on/off control signal output terminal OL�: muting on
DBFB normal/high selection signal output to the M62442FP (IC101)
2DBFB-H/LO
OL�: DBFB high, OH�: DBFB low
3M62442-LATCHOSerial data latch pulse output to the M62442FP (IC101)
4KEYCON-LATCHOSerial data latch pulse output terminal Not used (open)
Power on/off control signal output for the audio system (+5V) and deck, panel, audio system
5POWERO
(+7V) OL�: power on, OH�: standby
6F-RELAYORelay drive signal output for the speaker protect OH�: on
7R-RELAYORelay drive signal output for the speaker protect OH�: on Not used (open)
8PL-RELAYORelay drive signal output for the speaker protect OH�: on Not used (open)
9VPPNGround terminal
10X2OMain system clock output terminal (5 MHz)
11X1IMain system clock input terminal (5 MHz)
12VDDNPower supply terminal (+5V)
13XT2OSub system clock output terminal (32.768 kHz)
14XT1ISub system clock input terminal (32.768 kHz)
System reset signal input from the reset signal generator (IC502) OL�: reset
15RESETI
For several hundreds msec. after the power supply rises, OL� is input, then it changes to OH�
16AC-CUTIAC off detection signal input from the reset signal generator (IC502)
17CAPM-CNT1POCapstan motor (M1) drive signal output terminal
18SCORISubcode sync (S0+S1) detection signal input from the CXD2519Q (IC103)
19SOFT-TESTOOutput terminal for the software test (open)
20NCOONot used (open)
21RDS-INTI Serial data reading clock signal input terminal Not used (fixed at OL�)
22RDS-DATAISerial data input terminal Not used (fixed at OL�)
23AVDDNPower supply terminal (+5V) (for A/D conversion)
24AVREFIReference voltage (+5V) input terminal (for A/D conversion)
25ADJISetting terminal for the CD test mode Normally: fixed at OH�
26A-SHUTIShut off detection signal input from the deck-A side reel pulse detector (IC1001)
27B-SHUTI Shut off detection signal input from the deck-B side reel pulse detector (IC1002)
28B-HALFIDetection input from the deck-B half detect switch (S1006)
29CLK-CHECKINot used (fixed at OL�)
30SPEC-INI Setting terminal for the version
31AMS-INIAutomatic music sensor detection signal input from the HA12215F (IC301)
32DEMO-CHANGEISetting terminal for the demonstration H/L Fixed at OL�
33AVSSNGround terminal (for A/D conversion)
34SQ-DATA-INI Sub-code Q data input from the CXD2519Q (IC103)
35NCOONot used (open)
SQ-CLK
36OSub-code Q data reading clock signal output to the CXD2519Q (IC103)
(D-OUT ON/OFF)
SUPERWOOFER-
37OSuper woofer speaker on/off control signal output terminal Not used (open)
ON/OFF
SUPERWOOFER
38OSuper woofer speaker mode control signal output terminal Not used (open)
MODE
39NILI Not used (fixed at OL�)
40VSSNGround terminal
41DELAY-CONTOSerial data latch pulse output terminal Not used (open)
42PL-LATCHOSerial data latch pulse output terminal Not used (open)
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ACEC
