Keysight N5224B/25B Service Guide 4-15
Troubleshooting
Power Up Troubleshooting
Figure 4-3
Fan Power Cable Connections
3.
If the correct voltage is present at each connection and the fan connectors
are in good mechanical condition, suspect a defective fan. Refer to
“Removing and Replacing the Fans” on page 7-74
.
4.
If the correct voltage is not present, suspect a defective A18 system
“Removing and Replacing the A18 System
Troubleshooting LCD Display Problems
This procedure is intended to isolate the faulty assembly when the display is
dark. If the display is lit, but the color mix is faulty, refer to
1.
If the display is dim, the A3 display assembly is defective. Refer to
“Removing and Replacing the A1–A3 and Other Front Panel
.
There are no front panel adjustments for intensity and contrast of the LCD.
Содержание N5224B
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Страница 212: ...5 50 Keysight N5224B 25B Service Guide Theory of Operation Receiver Group Operation 5 Figure 5 17 4 Port Receiver Group...
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Страница 225: ...Keysight N5224B 25B Service Guide 6 5 Replaceable Parts Rebuilt Exchange Assemblies Figure 6 1 Module Exchange Procedure...
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Страница 608: ...8 102 Keysight N5224B 25B Service Guide General Purpose Maintenance Procedures Correction Constants 8...
Страница 612: ...Appendix 4 Service Guide EEPROM Address Assignments and Location N5224 5A B PNA and N5244 5A B PNA X Instruments...
Страница 613: ...Installation Note Xxxxx xxxxx 3...