CAP ax mikroTik router Overvoltage and resistance checking

CAPGi-5HaxD2HaxD

Disassemble the router using KB article: CAP ax mikroTik router disassembling

Tools Required:

1. Multimeter (with DC voltage and resistance (ohm) settings)
   
2. Plastic prying tools.
   
3. Screwdrivers.

Instruction for checking over- voltage

Checking Schottky diode and diode bridge:

1. Identify the location of diodes on the board.
   
2. 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

Video Link : CAP ax mikroTik router Overvoltage and resistance checking.mp4

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