Onkyo DX-C390 Service Manual

DX-C390
SUB MICROPROCESSOR TERMINAL DESCRIPTION-1
Q801 : uPD780232GC
No. PIN NAME SIGNAL NAME I/O DESCRIPTION
1 VDD1 +5V I Power supply pin. (To connect +5V)
2 VSS1 GND I GND pin.
3 X1 CLOCK I Connect a clock OSC pin for main system.
4 X2 CLOCK O Connect a clock OSC pin for main system.
5 IC GND I Internal connect pin.
6 ~RESET ~SUBRST I Reset signal input pin from main processor.
7 P27/~SCK1 SUBCL I Communication to main microprocessor and
clock input pin for write the flash microprocessor.
8 P26/SI1 SUBSI I Data input pin for write the flash microprocessor.
9 P25/SO1 SUBSO O Data output pin for write the flash microprocessor.
10 P24/BUSY SUBREQ O Communication require output pin of a main microcomputer.
11 P23 GND I Not used. To connect GND.
12 P22 GND I Not used. To connect GND.
13 P21/SO3 STANDBYLED O Standby LED control output pin. H=Lighting, L=Light out
14 P20/~SCK3 TRAYLED1 O Tray lighting LED control terminal 1.H=Lighting, L=Light out
15 P00/INTP0 ~IRIN I Remote control signal input pin.
16 P01/INTP1 TRAYLED2 O Tray illumination LED control pin 2.
17 P02/TI O Not used. Open pin.
18 AVSS GND GND pin for A/D converter.
19 ANI3 K3 I Key input pin.
20 ANI2 K2 I Key input pin.
21 ANI1 K1 I Key input pin.
22 ANI0 K0 I Key input pin.
23 VSS0 GND I GND pin.
24 AVDD +5V I Power supply pin for A/D converter.
25 VDD0 +5V I Power supply pin. (To connect +5V)
26 P64/FIP52 FLON O Filament power supply control pin.
H=ON/L=OFF
27 P63/FIP51 O Not used. Open pin.
28 P62/FIP50 O Not used. Open pin.
29 P61/FIP49 O Not used. Open pin.
30 P60/FIP48 O Not used. Open pin.
31 P57/FIP47 O Not used. Open pin.
32 P56/FIP46 O Not used. Open pin.
33 P55/FIP45 O Not used. Open pin.
34 P54/FIP44 O Not used. Open pin.
35 P53/FIP43 O Not used. Open pin.
36 P52/FIP42 O Not used. Open pin.
37 P51/FIP41 O Not used. Open pin.
38 P50/FIP40 O Not used. Open pin.
39 P47/FIP39 O Not used. Open pin.
40 P46/FIP38 O Not used. Open pin.
41 P45/FIP37 O Not used. Open pin.
42 P44/FIP36 O Not used. Open pin.
43 P43/FIP35 O Not used. Open pin.
44 P42/FIP34 P19 O FL tube segment output pin 19.
45 P41/FIP33 P18 O FL tube segment output pin 18.
46 P40/FIP32 P17 O FL tube segment output pin 17.
47 P37/FIP31 P16 O FL tube segment output pin 16.
48 P36/FIP30 P15 O FL tube segment output pin 15.
49 P35/FIP29 P14 O FL tube segment output pin 14.
50 P34/FIP28 P13 O FL tube segment output pin 13.
51 P33/FIP27 P12 O FL tube segment output pin 12.
52 P32/FIP26 P11 O FL tube segment output pin 11.
53 P31/FIP25 P10 O FL tube segment output pin 10.
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Onkyo DX-C390 Specifications

General

CD-RW playback	Yes
Device type	Portable CD player
Programmable tracks	40