Sony Walkman MZ-MH900, Руководство по обслуживанию

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42
MZ-NH900
IC801 CXD2681-223GG (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR)
Pin No. Pin Name I/O Description
1 DVDD1_0 — Power supply terminal
2 DVSS1_0 — Ground terminal
3 DVDD1_1 — Power supply terminal
4 DVSS1_1 — Ground terminal
5 DVDD1_2 — Power supply terminal
6 DVSS1_2 — Ground terminal
7 DVDD1_3 — Power supply terminal
8 DVSS1_3 — Ground terminal
9 DVDD1_4 — Power supply terminal
10 DVSS1_4 — Ground terminal
11 DVDD1_5 — Power supply terminal
12 DVSS1_5 — Ground terminal
13 DVDD1_6 — Power supply terminal
14 DVSS1_6 — Ground terminal
15 DVDD1_7 — Power supply terminal
16 DVSS1_7 — Ground terminal
17 DVDD1_8 — Power supply terminal
18 DVSS1_8 — Ground terminal
19 DVDD1_9 — Power supply terminal
20 DVSS1_9 — Ground terminal
21 DVDD3 — Power supply terminal
22 VSS_3 — Ground terminal
23 DVDD1_10 — Power supply terminal
24 DVSS1_10 — Ground terminal
25 DVDD1_11 — Power supply terminal
26 DVSS1_11 — Ground terminal
27 AVDD1A — Power supply terminal (for PLL)
28 AVSS1A — Ground terminal (for PLL)
29 AVDD1B — Power supply terminal
30 AVSS1B — Ground terminal
31 AVDD1C — Power supply terminal
32 AVDD2 — Power supply terminal (for A/D converter)
33
DVDD25SVADC
— Power supply terminal (for A/D converter)
34 AVSS2 — Ground terminal (for A/D converter)
35 AVDD3 — Power supply terminal (for A/D converter)
36 AVSS3 — Ground terminal (for A/D converter)
37 AVDD4A — Power supply terminal (for PLL)
38 AVSS4A — Ground terminal (for PLL)
39 AVDD4B — Power supply terminal (for PLL)
40 AVSS4B — Ground terminal (for PLL)
41 AVDD4C — Power supply terminal (for D/A converter)
42 AVSS4C — Ground terminal (for D/A converter)
43 AVDD5 — Power supply terminal (for PLL)
44 AVSS5 — Ground terminal (for PLL)
45 AVDD6 — Power supply terminal (for A/D converter)
46 AVSS6 — Ground terminal (for A/D converter)
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IC Pin Function Description