KB 152044 - CAP ax mikroTik router Overvoltage and resistance checking
CAPGi-5HaxD2HaxD
Tools Required:
- Multimeter (with DC voltage and resistance (ohm) settings)
- Plastic prying tools.
- Screwdrivers.
Instruction for checking over- voltage
Multimeter (with DC voltage and resistance (ohm) settings)
Plastic prying tools.
Screwdrivers.
Checking Schottky diode and diode bridge:
- Identify the location of diodes on the board.
- D2 and D14 are Shcottky diodes, D5 is diode bridge.
Check the value of termination resistors resistance: Value should be 75 Ohms
Checking Voltage drop value between using ethernet transformers pin and ground:
Checking voltage drop value between Ethernet Transformers TR200 and TR201 and Ground.
Voltage drop value should be in the range 0.35V and 0.40V
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