Ic Pin Functions - Sony HCD-GRX80 Service Manual

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7-25. IC PIN FUNCTIONS

• IC501 MASTER CONTROL (M306622 MA-A01FP)
Pin No. Pin Name
1 STK-MUTE
2 POWER
3 F-RELAY
4 REAR-RELAY
5 CD-POWER
6 LINE-MUTE
7 DBFB-H/L
8, 9 –
10 XC-IN
11 XC-OUT
12 RESET
13 X-OUT
14 VSS
15 X-IN
16 VCC
17 NMI
18 WAKE UP
19 SCOR
20 RDS-INT
21 RDS-DATA
22 AC-CUT
TE
L 13942296513
23 PL-CLK
24 PL-DATA
25 PL-LAT
26 TIMER LED
27 PROTECTOR
28 –
29 IIC-CLK
30 IIC-DATA
31 –
32 SQ-DATA
33 SQ-CLK
34 SW-MODE
35 CD-DATA
36 RY-SW
37 CD-CLK
38 493-LAT
ST-BY LED/
39
CLOCK-OUT
40 L+R/L-R
41 BY-PASS
42 FL-SW
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43 STBY RELAY
44 BASS FREQ
45, 46 –
.
47 493-DATA
48 493-CLK
49 ST-MUTE
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I/O
O Power amp ON/OFF signal output
O Power ON/OFF signal output
O Front speaker relay control output
O Rear speaker relay control output (Not used)
O CD power on signal output
O Line mute ON/OFF selection output
O DBFB H/L select signal output
– Not used
I
X'tal (32.768MHz)
O
I Reset signal input
O X'tal (16MHz)
– Ground
I X'tal (16MHz)
– Power supply (+5V)
I Not used (PULL UP EVER+5V)
I WAKE UP (Fixed at fixed at "L")
I Subcode data request signal output
I
RDS data interrupt input
I
I Back up signal input
O Clock signal to pro-logic (Not used)
O Data signal to pro-logic (Not used)
O Latch signal to pro-logic (Not used)
I Timer LED ON/OF
I Speaker protect ON/OF
– Not used
O Clock output for IC601
O Data output for IC601
– Not used
I
Subcode Q data clock input
I
O Not used
O CD data output
I Head phone swich detect
O CD clock output
O Latch signal output for M62493FP (IC101)
O Clock ond stand by LED signal output
I
Not used
I
I FL switch ON/OFF
I Stand by relay ON/OFF
O FREQ high/low signal for SYNC bass
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– Not used
i
O Data output for M62493FP (IC101)
O Clock output for M62493FP (IC101)
O Tuned mute signal output
– 70 –
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2 9
8
Function
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3 6 7 1 3 1 5
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9 4 2 8
0 5 8 2 9 9 4 2 8
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9 9
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