Assembly Level Troubleshooting 4
Keysight 3458A Assembly-Level Repair Manual 111
Test Equipment Required
You need the following equipment:
1 A 4 1/2 digit digital multimeter that can measure +5 V, +18 V, and
-18 V DC. This is only used to check and troubleshoot the power supplies.
2 A computer with GPIB capability to check the 3458A's GPIB operation. This is
only required for an GPIB failure.
3 An oscilloscope or logic probe. This is only required for an Ext Out failure.
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