Sony HCD-VR50 Service Manual page 68

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• IC501 MAIN CONTROL (M30622MA-A09FP) (MAIN board (2/5))
Pin Name
Pin No.
1 POWER
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 VDD
17 NMI
18 WAKE UP
19 SCOR
20 RDS-INT
21 RDS-DATA
22 AC-CUT
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23 PL-CLK
24 PL-DATA
25 PL-LAT
26 TIMER LED
27 PROTECT
28 V MUTE
29 IIC-CLK
30 IIC-DATA
31 –
32 SQ-DATA
33 SQ-CLK
34 SW-MODE
35 CD-DATA
36 H/P IN
37 CD-CLK
38 493-LAT
39 CLOCK-OUT
40 NO-USE
41 NO-USE
42 FL OFF
43 STBY RELAY
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44 BASS FREQ
45 FUNC SEL 1
46 FUNC SEL 0
.
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 signal output
O DBFB H/L select signal output
– Connected to ground
– Connected to ground
I
X'tal (32.768 KHz) (SUB CLOCK)
O
I System reset signal input
O X'tal (16MHz) (MAIN SYSTEM CLOCK)
– Ground
I X'tal (16MHz) (MAIN SYSTEM CLOCK)
– Power supply (+5V)
I Not used
I WAKE UP signal input
I CD Q-data request signal input
I RDS data interrupt input
I RDS data interrupt input
I AC cut ON (L)/OFF (H) check
O Clock output to pro-logic (Not used)
O Data output to pro-logic (Not used)
O Latch signal output to pro-logic (Not used)
O Not used
I Speaker protect signal input
O Video mute signal output
2
O I C SCL
O I 2 C SDA
– Not used
I Subcode Q data clock input (CD data)
I Subcode Q data clock input (CD data clock)
O SW-MODE music/movie select signal output
O CD data output
I Head phone detect
O CD clock output
O Latch signal output for IC101 (M62493FP)
O Clock out signal check
– Not used
– Not used
O Fluorescent indicator tube filament on/off signal output
O Main POWER on/off signal output
O FREQ high/low signal output (Not used)
O Function select signal output
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O Function select signal output
i
O Data signal output for IC101 (M62493FP)
O Clock signal output for IC101 (M62493FP)
O Tuner mute signal output
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Function
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