1 Performance Tests
36 Keysight 53210A/53220A/53230A Assembly Level Service Guide
4 Select the following:
– Coupling: DC
–The DC annunciator indicates DC input coupling for Channel 1.
– Impedance: 50 Ω
–The 50 Ω annunciator turns on, indicating a 50 Ω input impedance for
Channel 1.
5 Verify the DMM reads approximately 50 Ohms.
6 Mark Pass or Fail in the “Keysight 53210A/53220A/53230A Performance Test
Record (Tests 1 to 7)” on page 90.
7 Select the following:
– Impedance: 1 MΩ.
–The 1 MΩ annunciator turns on, indicating a 1 MΩ input impedance for
Channel 1.
8 Verify the DMM reads approximately 1.000 MOhm.
9 Mark Pass or Fail in the “Keysight 53210A/53220A/53230A Performance Test
Record (Tests 1 to 7)” on page 90.
10 Repeat steps 2 through 9 for RF Channel 2 for the Keysight 53220A/53230A
counters ONLY, since the Keysight 53210A counter does not have a standard
RF Channel 2.
11 Mark Pass or Fail in the Keysight 53220A/53230A Operational Verification Test
Record, Tests 6a and 6b for Chan 2, starting on page 90.
12 Disconnect the test setup.
This completes the operational verification testing for the Keysight 53210A/
53220A/53230A.
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