Aiwa XP-SR320, Руководство по обслуживанию

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IC, HD6433863A71W
– 20 –
Pin No. Pin Name I/O Description
1 BATT-LEVEL I BATT level input for battery level indication.
2 AVSS – Analog GND.
3 X1 – Connected to GND.
4 X2 – Not used.
5 VSS – GND.
6 XTAL2 O Connection terminal to oscillator terminal.
7 XTAL1 I Connection terminal to oscillator terminal.
8 TEST – Test pin. (Connected to GND)
9 RESET I Reset input.
10 DSL1 O DSL out 1 output.
11 DSL2 O DSL out 2 output.
12 BEEP O BEEP output.
13 CLK-SIFT O Clock shift output.
14 PLL-DI I PLL data input.
15 WAKE-UP I Wake up input pin for key.
16 PLL-DO O PLL data output.
17 PLL-CE O PLL chip enable output.
18 TUNER-ON O “L” output when tuner is ON.
19 PLL-CLK O PLL clock output.
20 VOL-CE O Volume IC chip enbale output.
21 VOL-CLK O Volume IC clock output.
22 VOL-DO O Volume IC data output.
23 P/B O Playback select output.
24, 25 NC Not connected.
26 CVCC – Power supply for CPU.
27 VSS – GND.
28 ~ 31 V3 ~ V0 – +B for LCD.
32 VCC – Power supply.
33 ~ 36 COM1 ~ COM4 O LCD common output 0 ~ 3.
37 CD-CLK O CD clock output.
38 CD-RXD I CD data input.
39 CD-TXD O CD data output.
40 CD-CE O CD IC chip enbale output.
41 CD-ACTIVE I CD-ACTIVE input.
42 CD-ON O “H” output when CD is ON.
43 MUTE O “L” output when mute.
44 P-OFF O “L” output when power OFF.
45 ~ 64 SEG0 ~ SEG19 O LCD segment 0 ~ 19 output.
65 ~ 68 SEG20 ~ SEG23 – Not used.
69 AM STEP (10k/9k) I AM STEP (10k/9k) switch input. “H” : 10k, “L” : 9k.
70 EX / DO I EX / DO. “H” : Export, “L” : Japan.
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