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• IC501 MASTER CONTROL (M30620MC-A03FP) (MAIN board (4/4))
Pin No.
Pin Name I/O Function
1 STK-MUTE O Power amp ON/OFF signal output
2 POWER O Power ON/OFF signal output
3 F-RELAY O Front speaker relay control output
4 REAR-RELAY O Rear speaker relay control output (Not used)
5 CD-POWER O CD power on signal output
6 LINE-MUTE O Line mute ON/OFF selection output
7 DBFB-H/L O DBFB H/L select signal output
8, 9 – – Not used
10 XC-IN I
11 XC-OUT O
12 RESET I Reset signal input
13 X-OUT O X’tal (16MHz)
14 VSS – Ground
15 X-IN I X’tal (16MHz)
16 VCC – Power supply (+5V)
17 NMI I Not used (PULL UP EVER+5V)
18 WAKE UP I WAKE UP (Fixed at fixed at “L”)
19 SCOR I Subcode data request signal output
20 RDS-INT I
21 RDS-DATA I
22 AC-CUT I Back up signal input
23 PL-CLK O Clock signal to pro-logic (Not used)
24 PL-DATA O Data signal to pro-logic (Not used)
25 PL-LAT O Latch signal to pro-logic (Not used)
26 TIMER LED I Timer LED ON/OF
27 PROTECTOR ON I Speaker protect ON/OF
28 – – Not used
29 IIC-CLK O Clock output for IC601
30 IIC-DATA O Data output for IC601
31 – – Not used
32 SQ-DATA I
33 SQ-CLK I
34 SW-MODE O Not used
35 CD-DATA O CD data output
36 HP DET I Head phone swich detect
37 CD-CLK O CD clock output
38 493-LAT O Latch signal output for M62493FP (IC101)
ST-BY LED/
CLOCK-OUT
40 L+R/L-R I
41 BY-PASS I
42 FL-SW I FL switch ON/OFF
43 STBY RELAY I Stand by relay ON/OFF
44 HIGH/LOW FRQ O FREQ high/low signal for SYNC bass
45 – – Not used
46 D-IN SEL I Digital input selector
47 493-DATA O Data output for M62493FP (IC101)
48 493-CLK O Clock output for M62493FP (IC101)
49 ST-MUTE O Tuned mute signal output
X’tal (32.768MHz)
RDS data interrupt input
Subcode Q data clock input
39
O Clock ond stand by LED signal output
Not used
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