Sony CDX-M630 Service Manual page 25

• IC301 HD6432398A03FW (SUB SYSTEM CONTROL)
Pin No. Pin Name
1 SA CLK
2 NCO
3 VSS
4 NC
5 VCC
6 to 9 NCO
10 VSS
11 to 18 NCO
19 VSS
20 to 27 NCO
28 VSS
29 to 31 NCO
32 SA EN
33 NCO
34 BU IN
35, 36 VSS
37 NCO
38 BUS ON
39 VCC
40 to 43 NCO
44 VSS
45 NCO
46 LED SW1
47 LED SW2
48, 49 NCO
50 LINK OFF
51 NCO
52 ILL ON
53 VSS
54 to 56 NCO
57 BOOT
58 VCC
59 NCO
60 TX/LCD SO
61 NCO
62 RX
63 NCO
64 LCD CKO
65 VSS
66 LCD CE0
67, 68 VSS
69 LCD INH
70 LCD CE1
71 LCD CE2
72 to 78 NCO
79 FL W
80 VCL
81 RES
82 NMI (H)
83 ST/SY (H)
84 VCC
85 XTAL
I/O
O Spectrum analyzer clock signal output to electronic volume (IC305)
O Not used. (Open)
— Ground pin
— Not used. (Open)
— Power supply pin (+5 V)
O Not used. (Open)
— Ground pin
O Not used. (Open)
— Ground pin
O Not used. (Open)
— Ground pin
O Not used. (Open)
I Spectrum analyzer enable signal input from system control (IC801)
O Not used. (Open)
I Back-up voltage detect signal input from bus interface (IC802)
— Ground pin
O Not used. (Open)
I BUS ON signal input from system control (IC801)
— Power supply pin (+5 V)
O Not used. (Open)
— Ground pin
O Not used.
I Illumination select control 1 signal input from system control (IC801)
I Illumination select control 2 signal input from system control (IC801)
O Not used. (Open)
O LINK OFF signal output
O Not used. (Open)
O Illumination control signal output
— Ground pin
O Not used. (Open)
I Display CPU write-in control signal input from system control (IC801)
— Power supply pin (+5 V)
O Not used. (Open)
O LCD data output/UART signal output
O Not used.
I UART signal input
O Not used.
O LCD clock signal output to LCD driver (IC1 and 2)
— Ground pin
O LCD driver chip enable 1 signal output to LCD driver (IC2)
— Ground pin
O LCD driver inhibit signal output to LCD driver (IC1 and 2)
O LCD driver chip enable 2 output to LCD driver (IC1)
O LCD driver chip enable 3 output to LCD driver
O Not used. (Open)
O Not used. (Open)
I Connecting to ground through a capacitor. Not used in this set. (Open)
I Reset signal input
I Non maskable interrupt signal input
I Stanby mode signal input
— Power supply pin (+5 V)
— Crystal oscillator (18.43 MHz)
Pin Description
CDX-M630
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