Sony CDX-C7000X - Fm/am Compact Disc Player, Руководство по обслуживанию

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