Aiwa XP-R231, Руководство по обслуживанию

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IC DESCRIPTION
IC, MN101C54AAA
Pin No. Pin Name I/O Description
1 VLC1 – LCD drive voltage setting terminal.
2 VLC2 – LCD drive voltage setting terminal.
3 VLC3 – LCD drive voltage setting terminal.
4 C1 – Connected to capacitor.
5 C2 – Connected to capacitor.
6 CHRG1 O Main charge output.
7 CHRG2 O Sub charge output.
8 CLK-SHT O Clock shift output. "H": Shift.
9 VSS – Connected to GND.
10 OSC2 O Micon main clock oscillator output. (4.19MHz)
11 OSC1 O Micon main clock oscillator output. (4.19MHz)
12 MMOD – Processor mode unused. (Connected to GND)
13 XI I Sub clock oscillator. (Connected to GND)
14 XO O Sub clock oscillator. (Not used)
15 VDD – Connected to VDD.
16 RST I Micon reset input.
17 VREF+ – A/D convertor VDD (1.8V).
18 K-P/S I "PLAY", "STOP" and "BAND" key input.
19 K-FUNC1 I "FUNCTION" key input.
20 K-FUNC2 I "FUNCTION" key input.
21 K-RMC I Wire remote control input.
22 VDIN I Battery voltage monitoring input.
23 SWR/H I Resume/Hold switch input.
24 CHRGIN I Charge voltage monitoring input.
25 DEST I Tuner band setting.
26 VREF– – Connected to GND.
27 VDD – Connected to VDD.
28 MDATA O DSP MDATA output.
29 STAT I DSP STAT input.
30 MCLK O DSP MCLK output.
31 DO O PLL and EEPROM data output.
32 DI I PLL and EEPROM data input.
33 CLK O PLL and EEPROM clock output.
34 BEEP O Buzzer output for headphone.
35 NRST O DSP reset output.
36 MLD O DSP MLD output.
37 DSL-ON O Headphone DSL control output. "L": DSL on.
38 BOOST O Current control. "L": STOP mode.
39 PLL CE O PLL chip enable output.
40 EEP CE O EEPROM chip enable output.
41 BLKCK I DSP BLKCK input.
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