Performance Tests - Verifying Specifications 1Keysight 53147A/148A/149A Assembly Level Service Guide 235 Verify that the front-panel display shows the following:– All segments of the front-panel display are temporarily activated.– TESTING is displayed.– SELF TEST OK is displayed.– The model number of the instrument is displayed (a four-digit hex numberis also displayed).– GPIB ADDR nn (nn = a two digit number from 0 to 30) is displayed.– CH2 NO SIGNAL is displayed.6 If an error message is displayed, refer to the troubleshooting section inChapter 2, “Service”7 Mark Pass or Fail in the “Performance Test Record” on page 51, “Test 1”.10 MHz Test1 Connect a BNC-to-BNC cable from the Reference 10MHz connector onthe instrument’s rear panel to the CHANNEL 1 input connector on the frontpanel.2 Press and release the Chan Select key.3 Verify that Ch 1 is displayed in the upper-left corner of the display.4 Verify that the display reads 10,000,000 Hz.5 Mark Pass or Fail in the “Performance Test Record” on page 51, “Test 2”.NOTE To ensure that the test results are valid, the instrument and the test equipmentshould be powered on for at least 30 minutes prior to beginning the tests. Thisallows the internal temperatures of the equipment and the timebase to stabilize.
