Sony CDX-C7000X Service Manual page 19

• IC801 MN101C49KTB (SYSTEM CONTROL) (MAIN BOARD)
Pin No. Pin Name
1 VREF–
2 S METER
3 FM AGC
4 KEY IN1
5 KEY IN0
6 DSTSEL
7 RC IN0
8 FUNC SEL
9 NIL
10 VREF+
11 VDD
12 OSC OUT
13 OSC IN
14 VSS
15 XI
16 XO
17 MMOD
18 RC IN1
19 SYSRST
20 BUS ON
21 LCD DATA
22 LCD CE
23 LCD CLK
24 ILL ON
25 DOOR IND
26 KEY ACK
27 NOSE
28 BU IN
29 SIRCS
30, 31 NC
32 RAM
33 RESET
34 NC
35 BEEP
36 NC (FUNC SEL)
37 NC (FUNC SEL)
38 – 40 NC
41 UNI CLI
42 UNI SO
43 UNI SI
44 UNI CLO
45 SDA
46 NC
47 SCL
48, 49 NC
50 LOCK
51 – 63 NC
64 ACC IN
65 TEL MUT
66 TEST IN
67 ANT CUT
68 NC
I/O
— Ground for A/D converter power supply
I S meter voltage detect signal input
I FM auto gain control signal input
I KEY signal input
I KEY signal input
I Not used.
I Rotary commander signal input
I Model function selection pin
— Ground
— A/D converter power supply
— Power supply (+5 V) input pin
O High speed clock signal output (18.432 MHz)
I High speed clock signal input (18.432 MHz)
— Ground for power supply
I Low speed clock signal input (32 kHz)
O Low speed clock signal output (32 kHz)
— Not used. (Fixed at "L".)
I Rotary commander shift key signal input
O System reset signal output
O Bus on control signal output
O LCD serial data signal output
O LCD chip enable signal output
O LCD serial clock signal output
O Illumination power supply control signal output
O Control signal output for power on sub panel when open to front panel
I Key active interrupt detect signal input
I Front panel attachment detection input
I Back up power supply setect signal input
I Remote control signal input
— Not used. (Fixed at "L".)
— Not used.
I Reset signal input
— Not used.
O Beep signal output
I Model function selection pin
I Model function selection pin
— Not used.
I Bus system serial clock signal input
O Bus system serial interface signal output
I Bus system serial interface signal input
O Bus system serial clock signal output
I/O I2C bus serial data signal input/output
— Not used.
O I2C bus serial clock signal output
— Not used.
I Check when remove to lock of MDNO CLV SERVO
— Not used.
I Accessory power supply voltage detection input
I Telephone attenuate detect signal input
I Test mode setting detect first stage signal input
— Not used.
— Not used.
Pin Description
Memory mode select signal input
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