
5
4 Technical Descriptions
4.1. Terminals Description
4.1.1. Main Block
IC601 : YESAM404
Pin
No Port Description I/O Vol. (V)
FM AM CD
1 BATT DET Battery voltage detection I 2.1 2.1 2.1
2 SYSID 1 System upgrade ID1 I 4.2 4.2 4.2
3 SYSID 2 System upgrade ID2 I 4.2 4.2 4.2
4 PLL DO PLL data I 4.8 4.8 4.8
5 PLL CLK PLL data clock O 4.8 4.8 4.8
6 PLL DI PLL data O 0 0 0
7 PLL CE PLL chip select O 0 0 0
8 LED1 LED drive control 1 O 0 0 0
9 LED2 LED drive control 2 O 0 0 0
10 RESET Reset I 4.8 4.8 4.8
11 XT2 Crystal oscillator - 2.5 2.5 2.5
12 XT1 Crystal oscillator - 2.1 2.1 2.1
13 FLMD0 - - 0 0 0
14 X2 Crystal oscillator - 2.7 2.7 2.7
15 X1 Crystal oscillator - 2.3 2.3 2.3
16 REGC (Regulator capacitor) - 2.5 2.5 2.5
17 VSS Ground - 0 0 0
18 EVSS Ground - 0 0 0
19 VDD +5V power supply - 4.8 4.8 4.8
20 EVDD +5V power supply - 4.8 4.8 4.8
21 ROT 1 Rotary encoder input 1 I 4.8 4.8 4.8
22 ROT 2 Rotary encoder input 2 I 4.8 4.8 4.8
23 OP/CL Panel open/close detect I 4.7 4.7 4.7
24 (NC) Not connected - - - -
25 LED3 LED drive control 3 O 0 0 0
26 (NC) Not connected - - - -
27 PANEL Panel detection I 0 0 0
28 (NC) Not connected - - - -
29 (NC) Not connected - - - -
30 LCD 5V CNT Display 5V control O 0 0 0
31 LCD CE LCD chip enable O 0 0 0
32 EJECT EJECT switch I 4.8 4.8 4.8
33 EJ ILL LED control (EJ/ILL) O 4.8 4.8 4.8
34 AMP CNT Amp power control O 4.8 4.8 4.8
35 ANT CNT Antenna power control O 4.8 4.8 0
36 EXT.MUTE External mute O 4.8 4.8 4.8
37 (NC) Not connected - - - -
38 RM DATA Remote control data I 4.7 4.7 4.7
39 AF MUTE AF mute control O 4.8 4.8 4.8
40 INV CNT Illumination control O 4.8 4.8 4.8
41 (NC) Not connected - - - -
42 HUB ACC
CNT HUB ACC regulator control O 0 0 0
43 INI A Mode setting A I 0 0 0
44 INI B Mode setting B I 4.8 4.8 4.8
45 INI C Mode setting C I 0 0 0
46 CHSTB /
SYSID4 CD changer strobe / System
upgrade ID4 I000
47 CD MUTE CD mute I 0 0 4.8
48 EVENT System upgrade EVENT I 0 0 0
49 HUB CNT HUB control signal O 4.8 4.8 4.8
50 UART RX UART serial data I 0 0 0
51 UART TX UART serial data O 4.8 4.8 4.8
52 CD SI CD data input O 0 0 0
53 CD SO CD data output I 0 0 0.8
54 CD SCK CD clock O 4.7 4.7 4.7
55 CD RST CD reset O 4.8 4.8 4.8
56 CD STB CD strobe I 4.8 4.8 3.6
57 (NC) Not connected - - - -
58 (NC) Not connected - - - -
59 AVREF (Conecting to +5V) - 4.8 4.8 4.8
60 AVSS Ground - 0 0 0
61 ACC ACC detection I 4.9 4.9 4.9
62 (NC) Ground - 0 0 0
63 LEVEL Audio level meter signal I 0 0 1.1
64 VSM Radio signal strength I 0 0 0
65 (NC) Not connected - - - -
66 SCL Audio control serial clock O 4.8 4.8 4.8
67 SDA Audio control data O 4.8 4.8 4.8
68 SD/ST Radio station detect I 4.8 4.8 4.8
69 MAIN CNT Main power control O 4.8 4.8 4.8
70 LCD CLK LCD Clock O 4.7 4.7 4.7
71 LCD DO LCD data I 4.7 4.7 4.7
72 LCD DI LCD data O 4.7 4.7 4.7
73 CH REM CD changer remote O 4.8 4.8 4.8
74 AMP MUTE Amp mute control O 4.8 4.8 4.8
75 STBY Power IC stundby control O 4.8 4.8 4.8
76 (NC) Not connected - - - -
77 CH DATA CD changer data I 0 0 0
78 CH CLK /
SYSID3 CD changer clock / System
upgrade ID3 I000
79 CD SW1 CD mechanism SW1 I 4.8 4.8 4.8
80 CD SW2 CD mechanism SW2 I 4.8 4.8 4.8
Pin
No Port Description I/O Vol. (V)
FM AM CD