Possible Reasons for No Resistance or Continuity Reading



Incorrect Measurement Tool

Ensure you are using a multimeter capable of measuring resistance in the kilohm range.

Faulty Multimeter

Test the multimeter on a known resistor to verify its functionality.

Improper Contact

Make sure the multimeter probes are firmly connected to the resistor terminals. Clean them if necessary.

Damaged Resistors

It is unlikely that all 70 resistors are faulty. Check the resistors visually for any breaks or damage.

Additional Considerations



Type of Resistors

The resistors in 47K EOL systems are usually flame retardant metal oxide (FMO) resistors. These resistors have a high resistance value and may not have a significant continuity reading.

Measuring Procedure

Set the multimeter to measure resistance in the kilohm range. Touch one probe to one end of the resistor and the other probe to the other end. Hold the probes steady for a few seconds.

Acceptable Resistance Range

FMO resistors may have a resistance value that varies slightly from the nominal 47K. A reading between 45K and 50K is generally acceptable.

Troubleshooting

1. Inspect the resistors visually for any damage.
2. Test the multimeter on a known resistor to verify accuracy.3. Check the connections between the resistor and the motherboard.
4. If the resistors still show no resistance, contact the manufacturer or a qualified technician for further assistance.

Conclusion:

It is unlikely that all 70 resistors are faulty. Ensure you are using the correct measurement method and addressing any potential issues with the multimeter or connections. If the resistors are confirmed to be faulty, contact the manufacturer or a technician for further troubleshooting and replacement. Flag for review