Alpine TME-M770, Service Manual

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TME-M770
Description of IC Terminal
ATMEGA128 :
IC105
No. Symbol I/O Terminal Description
1 PEN(NC) - No connect terminal.
2 NAVI_RX I Navigation serial RX terminal.
3 NAVI_TX O Navigation serial TX terminal.
4 MODEL_SELECTOR I A/G/E/ J model area change input terminal.
5 BL-PWM O Backlight TFT light (PWM) terminal.
6 NAVI-CONT I Navigation join check terminal.
7 NC - No connect terminal.
8 NTSC/PAL I LA7950 detection terminal.
9 REMSEN I Remote controller receiving terminal.
10 OSD-CS
11 CLK
12 DATA
13 OSD-RESET
14 NC - No connect terminal.
15 BEEP O Buzzer output (PWM) terminal.
16 AUDIO-MUTE O Audio signal shutdown terminal.
17 NC - No connect terminal.
18 PWR_CTL O Power control terminal.
19 MONDET O OSD menu control (H/L) output terminal.
20 RESET I Reset signal input terminal.
21 VCC - Power supply connect terminal.
22 GND - GND connect terminal.
23 XTAL2
24 XTAL1
25 I2C_SCL O
26 I2C_SDA
I/O
27 TP_RXD
I
28 TP_TXD
O
29 NRGB
I
(RGB/Composite) discrimination terminal.
30 VOLUME_CS
O
Volume (BH2220) DAC control terminal.
31 VOL/CROMA-DATA
O
Volume/Chroma DATA output terminal.
32 VOL/CROMA-CLK
O
Volume/Chroma CLK output terminal
33 CHROMA_CS
O
BH2505 DAC control terminal.
34 VGH_CTL
35 VGL_CTL
36 REMOUT O Remote control code transmitting terminal.
37 REMCNT1A
38 REMCNT1B
39 REMCNT2A
40 REMCNT2B
41 REMCNT3A
42 REMCNT3B
43 GUIDE_CTL I Navigation voice signal control terminal.
44 GUIDE_DET I Navigation voice signal detection terminal.
45 TP_RESET O Touchpad communication terminal.
46 NC - No connect terminal.
LC74735 (OSD) control terminal. O
O
O
Crystal connect terminal. (8MHz) -
AV selector (CXA2069) control terminal.
Touchpad communication terminal.
Power control terminal.
Remote control output selector terminal.
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