Sony HCD-U1BT - Receiver Component For Micro Hi-fi Systems, Руководство по обслуживанию

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HCD-U1BT
PANEL BOARD IC302 M30622MEP-A41FPU0 (PANEL CONTROLLER)
Pin No. Pin Name I/O Description
1 NC — Not used (Open)
2 SOFT_TEST — Not used (Open)
3 LED_USB O LED_USB signal output
4 VFD_POWER O VFD_POWER signal output terminal
5 LED_DATA — Not used (Open)
6 LED_LAT — Not used (Open)
7 LED_CLK — Not used (Open)
8 BYTE I External data bus width selection signal input terminal (Connected to ground)
9 CNVSS I Processor mode switch input terminal (for test)
10 XCIN I Not used (Open)
11 XCOUT O Not used (Open)
12 RESET I
System reset signal input from the reset signal generator “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
13 XOUT O Main system clock output terminal (5 MHz)
14 VSS — Ground terminal
15 XIN I Main system clock input terminal (5 MHz)
16 VCC — Power supply terminal (+3.3V)
17 NMI I Non-maskable interrupt signal input terminal, Not used (Pull up)
18 LED_BT_ACCESS O LED ON/OFF signal output terminal
19 LED_BT_FUNC O LED ON/OFF signal output terminal
20 LED_USB_FUNC O LED ON/OFF signal output terminal
21 LED_CD_FUNC O LED ON/OFF signal output terminal
22 LED_TUNER_FUNC O LED ON/OFF signal output terminal
23 LED_AUDIO_IN_FUNC O LED ON/OFF signal output terminal
24 LED_PLAY O LED ON/OFF signal output terminal
25 LED_PAUSE O LED ON/OFF signal output terminal
26 LED_DISC O LED ON/OFF signal output terminal
27 NO USE — Not used (Open)
28 LED_USB_ILUMM O LED ON/OFF signal output terminal
29 IIC CLK I IIC data reading clock signal input terminal
30 IIC DATA I IIC data input terminal
31 to 34 NC — Not used (Open)
35 VFD_DATA O CD serial data output to the CD DSP
36 VFD_LAT I Internal status (SENSE) signal input from the CD DSP
37 VFD_CLK O CD serial data transfer clock signal output to the CD DSP
38 VFD_BK I CD mechanism power protect on/off detection signal input terminal “H”: protect on
39 NC — Not used (Open)
40 NC — Not used (Open)
41 NO USE — Not used (Pull up)
42 NC — Not used (Open)
43 NC — Not used (Open)
44 RD — Not used (Open)
45 NC — Not used (Open)
46 NO USE — Not used (Pull up)
47 NC — Not used (Open)
48 CS2 — Not used (Open)
49 CS1 — Not used (Open)
50 CS — Not used (Open)
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