Sony HCD-MDX10 Service Manual - Page 80

IC501 MASTER CONTROL M30620MC-A03FP MAIN board 4/4, Pin No., Pin Name, Function

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• IC501 MASTER CONTROL (M30620MC-A03FP) (MAIN board (4/4)) Pin No. Pin Name 1 STK-MUTE I/O O Power amp ON/OFF signal output Function 2 POWER 3 F-RELAY O Power ON/OFF signal output 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 8, 9 - O DBFB H/L select signal output - Not used 10 XC-IN 11 XC-OUT I X'tal (32.768MHz) O 12 RESET 13 X-OUT I Reset signal input O X'tal (16MHz) 14 VSS - Ground 15 X-IN I X'tal (16MHz) 16 VCC - Power supply (+5V) 17 NMI 18 WAKE UP I Not used (PULL UP EVER+5V) I WAKE UP (Fixed at fixed at "L") 19 SCOR I Subcode data request signal output 20 RDS-INT 21 RDS-DATA 22 AC-CUT I RDS data interrupt input I 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 31 - O Data output for IC601 - Not used 32 SQ-DATA 33 SQ-CLK I Subcode Q data clock input 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/ 39 CLOCK-OUT O Clock ond stand by LED signal output 40 L+R/L-R 41 BY-PASS I Not used 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 48 493-CLK O Data output for M62493FP (IC101) O Clock output for M62493FP (IC101) 49 ST-MUTE O Tuned mute signal output - 116 -

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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