C-6 Description of Self-diagnosis Test Items
C.1.11 Z0309 Serial Port Test
Test Content
The super stratum test item: Z0208 CP210x Serial Number Test
Check if the serial port of IO BOX board works normally, the 2 pin and 3 pin should be short
circuited when testing the serial channel.
Suggestion when test failed:
If test is failed, there may be something wrong with serial port communication of IO BOX board.
Replacing IO BOX board is recommended.
C.1.12 Z0310 Microphone Interface Test
Test Content
Test if the microphone interface on the left side of control panel. Insert the MIC before the test,
speak louder when testing normally. The sound wave will display on the screen. Only when sound
wave over pass the setting value, the test result is “pass”.
Suggestion when test failed:
First, you should guarantee that the MIC works normally, when you speak louder, there will be
sound wave displaying on the screen. If no sound wave, the microphone interface may be failed.
1. Check if the hardware and related circuits listed below are normal, interfaces are securely
welded, modules are normal.
2. Replacing digital board is recommended.
C.1.13 Z0401 MF and Front Power Main Board ARM
Interconnection Test
Test Content
The super stratum test item:Z0201 PC Module and MF FPGA Interconnection Test.
Test if communication serial port between MF FPGA and Front-end power ARM works normally.
Suggestion when test failed:
1. Check if the following listed hardware and the related circuits are normal, check if the interfaces
are well welded and if the module is working normally.
2. First recommended option is to replace the front-end power board, then the digital board.