My HP83640A has had a tough destiny: recently the A5 board (YO Phs det, part No 08360-60009) smoked out. Close inspection revealed the most probable source of the smoke: an unknown to me element, three-pined roundly looking thing with the marking 106K/10K (see pictures 1 - of the device, and 2 - of a similar part on-board) and an inductor, whose colour code is not readable, located next to J1 (picture 3). I would be forever grateful to the one that can tell me what the first element is and what the colour code (even better, the value) of the inductor is.
Thanks a million in advance.
Edited by: Miro on Feb 11, 2013 4:31 AM
Thanks a million in advance.
Edited by: Miro on Feb 11, 2013 4:31 AM
Looking on the A5 of my HP 83640A, the inductor has the following color rings :
grey (?)/red/grey(?)/red and a large ring silver (should be the tolerance).
But, except the red which is obvious, the other colors are not very clear to identify ...
I have checked with my HP 4192A Impedance Analyzer (in circuit measuring) and it gives 2.2µH@ 1kHz, 2.16µH@10kHz and 1.15µH@100kHz.
So, I guess a 2.2µH should work.
For the other burned component, it's a tantalum capacitor 10µF 10V. The 3 leads version can be replaced by a 2 pins, easy to get. Be aware of the polarity with the 2 leads version. The central connector in the 3 leads version is the positive side.
Hope these infos will help.
Regards,
DominiqueB