EEVblog 1564 – Agilent/Keysight U1273AX Multimeter Repair

A very interesting repair of an Agilent/Keysight U1273AX OLED display multimeter. It had two distinct unrelated faults.

Ian Scott Johnston on The Amp Hour: https://theamphour.com/643-calibration-repair-with-ian-johnston/

Forum: https://www.eevblog.com/forum/blog/eevblog-1564-agilentkeysight-u1273ax-multimeter-repair/

00:00 – Faulty Agilent / Keysight U1273AX OLED display multimeter
01:36 – Battery leakage, OF COURSE!
04:26 – Bottom of PCB
05:47 – The OLED display
10:09 – Annoying voltage measurements
15:14 – At great expense to management, a new OLED
18:18 – Winner Winner Premature Dinner
20:19 – The Repair is over, right? RIGHT?
21:22 – Accuracy fault. Repair time again.
25:23 – Hybrid Thin Film Resistor Dividers
26:56 – Parallel contamination
29:44 – When in doubt, suck it off

Podcast: Download