Aiwa SX-DV1, Service Manual

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1 IR I Infa-red signal input.
2 X1 I Connected to GND.
3 X2 O Not used.
4 VSS – GND.
5 OSC2 O 4MHz crystal oscillator out.
6 OSC1 I 4MHz crystal oscillator in.
7 TEST I Connected to GND.
8 RESET I Chip hard reset.
9 REGION0 I Region code 0. (Connected to GND)
10 REGION1 I Region code 1. (Connected to GND)
11 REGION2 I Region code 2. (Connected to GND)
12 OSD I OSD mode select. (Not used)
13 FPCS I Front panel chip select.
14 LED-ON O LED on for backlight LED (H: Off, L: On).
15 P-CON O Power on control.
16 VCC – +3.3V power supply.
17 ~ 19 V1 ~V3 – Not used.
20 ~ 23 COM1 ~ COM4 O LCD common output.
24 RESERVE I/O Not used.
25 ~ 44 SEG24 ~ SEG5 O LCD segment output.
45 SEG4 I LID-SW detect (H: Open, L: Close).
46 SEG3 O Send data for amplifier. (Not used)
47 SEG2 I Receive data from amplifier. (Not used)
48 SEG1 O Data clock for SCI. (Not used)
49 FPREQ O SCI request for IC, STI5519 (L: Request).
50 FERST O Hard reset for front end.
51 AMUTE O Audio mute (H: Mute, L: Off).
52 RESERVE O Not used.
53 STRST O Hard reset for IC, STI5519.
54 ROMRST O Hard reset for FLASH ROM.
55 VSS – GND.
56 RESERVE I Connected to pull-up resistor.
57 HSCK I SCI clock in.
58 HRXD I SCI data in.
59 HTXD O SCI data out.
60 NT/PAL I Video output mode select (H: PAL, L: NT). (Not used)
61 AVCC – +3.3V power supply.
62 KEY1 I Key search 1 (2 keys). [POWER, TIME]
63 KEY2 I Key search 2 (5 keys). [STOP, PLAY, PAUSE, FF, REW]
64 V-DET I Input voltage detect (Limit > = 2.5V).
Pin No. Pin Name I/O Description
IC DESCRIPTION -1/5 (IC, HD6433802A57FP -1/1) XD-DV1
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