Teardown, Repair & Analysis of an Agilent N5230A 13.5GHz PNA-L Network Analyzer - Page 1
Forum section: electronics / repair

author: Hugoneus
author_rank: Frequent Contributor
timestamp: September 23, 2018, 12:48:49 am
content: Please let me know what you guys think. We can decide on how to proceed.You can watch the video here: [51 Minutes]youtu.be/665-hwI8reQMore videos at The Signal Path:www.TheSignalPath.com

author: edpalmer42
author_rank: Super Contributor
timestamp: September 23, 2018, 04:09:52 am
content: Do you know Luis Cupido?https://www.qsl.net/ct1dmk/and, I think,https://groups.yahoo.com/neo/groups/chip-hybrids/info.He might be willing to do the repair. At least, his advice would be valuable.Ed

author: rx8pilot
author_rank: Super Contributor
timestamp: September 23, 2018, 04:49:40 am
content: This will be very interesting to watch! Even if the attempt does not work.... seeing the process unfold will be rather cool.Short and misplld from my mobile......

author: dcarr
author_rank: Regular Contributor
timestamp: September 23, 2018, 05:36:26 am
content: Even if a bonder is available, how does one obtain bare die switches, FETs, etc. in single unit quantities?DK, etc. show minimum orders of 25,50,100 units!

author: TheSteve
author_rank: Unknown
timestamp: September 23, 2018, 08:49:11 am
content: Seems like it would be a bit of a waste to experiment too much with it using QFN's etc. However if you got a wire bonder then absolutely swap in a new switch.

author: rx8pilot
author_rank: Super Contributor
timestamp: September 23, 2018, 08:14:19 pm
content: Curious what level of wire bonder would be appropriate for this job. My best guess is that a fairly basic and old, but working one would be ok. No real need for the ultra-deluxe sub-micron computer vision based systems.

author: Hugoneus
author_rank: Frequent Contributor
timestamp: September 23, 2018, 11:43:19 pm
content: Thank you all.Looking for a unit, but so far can’t find a reasonable one.I’ll keep you posted.

author: vaualbus
author_rank: Frequent Contributor
timestamp: September 24, 2018, 12:03:17 am
content: Is not possible to bypass the amplifier on the 13ghz path and put an outside amplifier to regain that 20db of loss you have? And Than bypass the ALC circuit to look at the power after the "outside" amplifier?

author: rx8pilot
author_rank: Super Contributor
timestamp: September 24, 2018, 02:34:26 am
content: Quote from: Hugoneus on September 23, 2018, 11:43:19 pmHave you done this process yourself, or do your technicians typically do this type of process? I have seen the machines, but have no reference for how they work or what kind of skills are needed.I have procured the finest popcorn and butter for part 2.

author: Hugoneus
author_rank: Frequent Contributor
timestamp: September 25, 2018, 07:44:59 pm
content: Quote from: rx8pilot on September 24, 2018, 02:34:26 amYes, I have done wire bonding before. As with any skill, practice is required.

author: Magiciaen
author_rank: Contributor
timestamp: October 09, 2018, 04:35:19 am
content: This die will do the trick I think, and it's only $30, available in single quantities from Mouser:https://www.microsemi.com/existing-parts/parts/137221https://www2.mouser.com/ProductDetail/Microsemi/MMS006AA?qs=%2Fha2pyFadug8ZHUc9uYNv83PfExVK2BiIJof%2FYl58no=I'd wirebond it for you, but don't have access to one at the moment. I think getting access to a wirebonder through a colleague and making this process part of the repair video would be really instructive to viewers!