| Electronics > Repair |
| Please help, FLUKE 8920A Multimeter Repair |
| << < (7/45) > >> |
| Harry_22:
Could you measure the following points by multimeter not oscilloscope. Be careful and don't short the pins with the transistor case. We don't need the generator any more. |
| daisizhou:
You mean I disconnected the 8920a input? In other words, the 8920a input is left floating,Then use a multimeter to measure the voltage value in the picture above, right? |
| Harry_22:
Yes you are right. |
| daisizhou:
If you confirm that the 8920a input port status is open circuit,I use the DC range of the digital multimeter to measure the voltage values 1-6 as shown in the figure below. **Also please tell me the conditions of measurement, I hope the measurement value is valid,For example: the input interface is open circuit or connected to a 50 ohm resistor...,Use the DC or AC range of a digital multimeter...** In addition, I saw "its31129" mark on the outer shell of this tube. |
| Harry_22:
Did you measure at "LO RANGE ENABLE" ? Seems yes. Please check that TP1 voltage still around 8.6V Also measure DC voltage at R40, R41 R42 and C24. You will get two values for each component. It doesn't matter which side is where. |
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