TH-830H改99CH出现的问题一例!!! [复制链接]

最近收到改99ch的大小ic各一片,按最初资料拆r156后发现写入失败,错误提示无法连接.随按照bd4eq的方法加一个插座,用2片24c16,并再拆r18,结果依然失败.分析:bd4eq肯定不会提供错误资料,而且bd8uk按这个方法改成功过.仔细看资料提到99ch和32ch都需要不同的大ic芯片,也就是大ic是个控制ic,经仔细观察发现,机头的24c16是和大ic一同发过来的,把2个24c16交换位置后,一切都正常了.btw写频软件最好在纯dos方式下用,不要在windows的dos窗下用.

马后炮

谁让您老人家撒手不管呀！

to upgrade you will need to replace the 24c04 eeprom in the radio and
in the control head with 24c16 eeproms, then on the system board, near pin 5 of the memory ic : remove r156

on the alpha control head, remove r33

on the 2 digit control head, remove r18

no changes are necessary to the 27c256 eprom.

24c16 can be replaced by 24lc16. the difference is reading and writing speed