Teardown & Repair of an Agilent 1169A 12GHz Smart Active Probe (And a Puzzle!)



In this episode Shahriar examines a failed Agilent 1169A 12GHz Smart Active Probe. The probe does not get recognized by the oscilloscope and therefore cannot be calibrated. The instrument uses an I2C interface to the probe to download the probe’s specifications and characteristics. The probe teardown reveals a simple I2C EEPROM IC. After removing the IC it becomes clear that the chip is damaged and must be replaced. A duplicate probe is used to copy the EEPROM data onto a new IC which revives the probe. With the help of the community, the CRC checksum code is discovered and the probe is assigned a new serial number. Equipment Repair, Teardown Digital, Parts, Repair, RF, Teardown Social Media Archives Archives Select Month November 2019  (3) September 2019  (3) August 2019  (1) July 2019  (3) April 2019  (2) March 2019  (6) January 2019  (2) November 2018  (5) September 2018  (3) August 2018  (4) July 2018  (3) May 2018  (1) April 2018  (2) February 2018  (2) December 2017  (3) November 2017  (1) October 2017  (4) September 2017  (7) July 2017  (1) June 2017  (1) May 2017  (4) March 2017  (4) February 2017  (4) January 2017  (5) October 2016  (1) September 2016  (6) March 2016  (4) January 2016  (4) December 2015  (3) November 2015  (3) September 2015  (2) August 2015  (4) July 2015  (4) June 2015  (2) May 2015  (2) April 2015  (2) February 2015  (4) January 2015  (2) December 2014  (2) November 2014  (3) October 2014  (3) September 2014  (1) August 2014  (1) July 2014  (2) March 2014  (2) August 2013  (1) July 2013  (2) March 2013  (1) February 2013  (1) January 2013  (2) December 2012  (1) November 2012  (3) October 2012  (1) September 2012  (1) July 2012  (3) June 2012  (2) February 2012  (1) October 2011  (1) September 2011  (1) August 2011  (3) June 2011  (1) May 2011  (2)

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