Issue Description
Q:
The A32 board is a universal subscriber board of the UA5000. When I use the multimeter to check whether the A32 board is faulty, what should I do?
Alarm Information
Null
Handling Process
A:
1. First, check the board fuses. The A32 board has two fuses, which can be easily found on the board. Use the multimeter to check both ends of the fuse. If the test result is 0 ohms, it indicates that the fuse is normal. If the test result is not 0 ohms, it indicates that the fuse has blown. Check both fuses.
fuses
2. If both fuses are normal, check the resistance between the network and the GND on the board. If the test result is larger than 19 kilohms, it indicates that the board is normal. If the test result is smaller than 19 kilohms, it indicates that the board is faulty.
fuses
Root Cause
Null
Suggestions
Null
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