85RF Fluke Electronics, 85RF Datasheet - Page 83

• Manufacturer Part Number: 85RF
• Description: PROBE HIGH FREQ 500MHZ
• Manufacturer: Fluke Electronics
• Type: High Frequencyr

Specifications of 85RF

• Impedance: 10M Ohm
• Voltage - Max: 30VRMS, 200VDC
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Ratings: -
• Current Rating: -
• Color: -
• Termination: -
• Wire Insulation Material: -
• Cable Length: -
• Other names: 532457

4-24. Troubleshooting Guide
A troubleshooting guide is presented in Table 4-6. The guide is structured
around the performance tests presented earlier in this chapter. To use this
guide, complete the performance tests and note any discrepancies in
performance. Then locate the test, symptom, and possible cause of
malfunction in Table 4-6. When several possible causes of malfunction are
listed, they are listed in order beginning with the most probable to the least
probable. A section abut troubleshooting the power supply is also included.
The following troubleshooting techniques can be helpful:
*Display digits are numbered 0 through 4 from right (LSD ) to left (MSD).
When troubleshooting, remember to use the switch decoding self-test to
determine whether the microcomputer properly interprets the function
and range selection.
Do not remove the main pcb from the bottom case unless you must do so
to gain electrical access to circuits. You can gain electrical access to
almost all of the input circuitry through the switch contact pins on the
top of the switch deck (refer to the schematic in Chapter 7).
200 ( A, mV or
2
20
200
2000
none
REL
AC Voltage
DC Voltage
AC Current
DC Current
Resistance
Diode Test
Push Button
Function
Range
Table 4-5. Switch Decoding Self-Test
)
0 (default if no range selected)
Display Digit 0*
Display Digit 3*
Display Digit 1*
Troubleshooting
Maintenance
1
2
3
4
0
1
2
1
2
3
4
5
7
4-21
4