M52797—(创维3T30机芯)总线控制AV开关
脚号 |
符号 |
功能说明 |
电压(V) |
对地电阻 |
红笔测 |
黑笔测 |
1 |
Vcc |
+9V电源 |
8.6 |
0.3 |
0.3 |
2 |
Vcc |
+9V电源 |
8.6 |
0.3 |
0.3 |
3 |
Lch2 IN |
音频信号输入(AV1 L) |
4.0 |
9.5 |
12.2 |
4 |
V2 IN |
视频信号输入(AV1/S-V Y) |
3.4 |
9.5 |
12.8 |
5 |
Rch2 IN |
音频信号输入(AV1 R) |
4.0 |
9.5 |
12.8 |
6 |
Lch3 IN |
音频信号输入(DVD L) |
4.0 |
9.5 |
12.5 |
7 |
V3 IN |
亮度信号输入(DVD) |
3.4 |
9.5 |
12.8 |
8 |
Rch3 IN |
音频信号输入(DVD R) |
4.0 |
9.5 |
12.8 |
9 |
Lch4 IN |
音频信号输入(AV2 L) |
4.0 |
9.5 |
12.8 |
10 |
V4 IN |
视频信号输入(AV2) |
3.4 |
9.5 |
12.8 |
11 |
Rch4 IN |
音频信号输入(AV2 R) |
3.9 |
9.5 |
12.5 |
12 |
SCL |
I2C时钟线 |
4.6 |
7.0 |
11.1 |
13 |
SDA |
I2C数据线 |
4.6 |
6.5 |
11.0 |
14 |
NC |
空脚 |
0 |
+∝ |
+∝ |
15 |
GND |
地 |
0 |
0 |
0 |
16 |
GND |
地 |
0 |
0 |
0 |
17 |
CL |
控制端 |
0 |
0 |
0 |
18 |
D5 50/60 |
50/60Hz切换 |
0 |
5.8 |
5.8 |
19 |
D4 H-SEN |
行检测信号 |
0 |
9.1 |
13.1 |
20 |
V2 out |
视频2输出(3T30机芯未用) |
2.5 |
9.1 |
13.1 |
21 |
BIAS |
偏置滤波端 |
3.8 |
7.8 |
9.5 |
22 |
V1 out |
视频1输出 |
3.8 |
9.5 |
11.0 |
23 |
Rch1 out |
右声道1输出 |
3.6 |
1.5 |
1.5 |
24 |
Lch1 out |
左声道1输出 |
3.8 |
9.3 |
10.8 |
25 |
TV R IN |
(TV)右声道输入 |
3.8 |
9.5 |
12.5 |
26 |
TV IN |
(TV)视频输入 |
4.2 |
8.8 |
12.0 |
27 |
TV L IN |
(TV)左声道输入 |
4.2 |
8.8 |
12.0 |
28 |
NC |
空脚 |
0 |
+∞ |
+∞ |