CDX-CA900/CA900X
Ver 1.1
SECTION 3
DIAGRAMS
3-1. IC PIN DESCRIPTIONS
Y IC501 MB90574CPMT-G-367-BNDE1 (SYSTEM CONTROL) (US, Canadian Model)
Y IC501 MB90574CPMT-G-368-BNDE1 (SYSTEM CONTROL) (AEP, UK, E Model)
Pin No.Pin NameI/OPin Description
1RF OKIServo IC RFOK signal input from servo IC (IC1)
2CD RSTOServo IC reset signal output to servo IC (IC1)
Servo IC command/parameter identification signal output to servo IC (IC1)
3A0O
Command transmission: OL�
4STBOServo IC data storob signal output to servo IC (IC1) Data latch: OL�
5ATTOSystem mute control signal output
6XTAL ENONot used in this set.
7LIMITICD mechanism limit switch signal input (SW3)
8VCCNPower supply pin (+5 V)
9AMP ATTOPower amp mute signal output to power amp (IC381)
10E2PSIOI/OEEPROM data signal input/output with tuner unit (TUX201)
11E2PCKOOEEPROM clock signal output to tuner unit (TUX201)
12DOOR SW/FLS SIIFront panel open/close detection signal input/Flash write data signal input
13FLS SOOFlash write data signal output
14BUS ONOBus on control signal output
15BEEPOBeep signal output to power amp (IC381)
16(NCO)ONot used. (Open)
17UNISIISONY bus data signal input
18UNISOOSONY bus data signal output
19UNICKOOSONY bus clock signal output
20, 21(NCO)ONot used. (Open)
22SYSRSTOSystem reset signal output to bus interface (IC601)
23(NCO)ONot used.
24SIRCSIRemote control data signal input
25TSIIServo IC serial data signal input from servo IC (IC1)
26TSOOServo IC serial data signal output to servo IC (IC1)
27TCKOOServo IC serial clock signal output to servo IC (IC1)
28PH1ICD mechanism PH1 detection signal input Not used in this set.
29CD DSWICD mechanism down switch signal input (SW4)
30IN SW/PH2ICD mechanism disc-in switch signal input (SW1)
31PH3ICD mechanism PH3 detection signal input Not used in this set.
32CD LM LOOCD mechanism loading motor control signal output
33VSSNGround pin
34CNCapacitance pin of power stabilized
35CD LM EJOCD mechanism eject motor control signal output
36AMP ONOAmp on signal output to power amp (IC381) OL�: OFF, OH�: ON
37VOLATTOElectronic volume mute signal output to electronic volume (IC301) OL�: Mute
38DVCCND/A converter VREF input (+5 V)
39DVSSND/A converter ground pin
40ADSO1OADSO select switch output 1
41ADSO2OADSO select switch output 2
42AVCCNAnalog power supply pin (+5 V)
43AVRHNA/D convert Vref+ input (+5 V)
44AVRLNA/D convert Vref� input (0 V)
45AVSSNAnalog ground pin
46KEYIN0IKey signal input
47NCONot used. (Open)
48RC IN0IRotary commander signal input from remote in jack (J651)
49(NCO)ONot used. (Open)
50QUALITYITuner noise detection signal input (E model)
13 |
ACEC
SONY
