第三步:控背壳开一小口,把数据线连到高频头数据口即可,如下图(此图多连了一个地线,可忽略):
file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image010.jpg (二)、再说直插改法,此法不用加模块,几个电阻搞定。 第一步:同上; file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image011.jpg 第二步:打开DJT高频头,如下两图加两根线和两个电阻。黑线直接一头焊在高频头第二插针脚,另一头焊在下图所示的焊点处,此处只刮开阻焊漆焊上即可。蓝线一头加470欧电阻接到高频头第五插针脚,另一头接下面第二张图的焊点处,第二张图红框中的PCB线路应割断,在圆过孔焊盘与蓝线焊接点之间加一个1K电阻。
file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image013.jpg
file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image015.jpg
file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image017.jpg file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image019.jpg file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image021.jpg 二、 改语音和背光(改完语音刷固件下载固件时应该勾选voice选项) (一)、所需元件: 电容: 10nf*3,10uf*1 电阻:2k2*1,10k*3,100k*1,150欧*1 三极管:BC548B*3(NPN型小功率三极管,我自己刚开始用9014代替的,不知为何不行,后用BC547可行) IC:7805五伏稳压*1(78L05或78M05均可),LE33CZ-3.3V稳压*1(AMS1117或662K可代替),74HC574逻辑芯片*1 语音模块WTV020SD-20S*1(某宝可买到,下图那种实测可行,其他样子的模块不确定) file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image023.jpg file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image025.jpg file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image027.giffile:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image028.jpgfile:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image029.jpgfile:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image030.jpg 成品如下图:
file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image032.jpg file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msohtmlclip1/01/clip_image034.jpg
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