AnsweredAssumed Answered

ESA E4402B with defective 1GC1-4210

Question asked by suribe on Jun 27, 2013
Latest reply on Apr 17, 2017 by RonCurry

Like • Show 0 Likes0
Comment • 5

Hello forum,
I have a ESA E4402B with "LO Unlock" failure.
After some test I found defective U302 1GC1-4210 in A8 Board (image attached)
So, I need to purchase this IC, but I don´t find it in Agilent's page.
Could someone help me?

Thanks in advanced, Santos

Attachments

1GC1-4210.png501.4 KB

No one else has this question

Outcomes

5 Replies

tabbott Jun 27, 2013 3:35 PM
Mark Correct
Correct Answer
Hi Santos -

You can go to http://www.parts.agilent.com/

There is a note there about model and serial number being required, so I’m not sure Agilent will actually be able to sell it to you.

Give it a try!
Like • Show 0 Likes0
Actions
- suribe @ tabbott on Jun 28, 2013 7:13 AM
  Mark Correct
  Correct Answer
  Hello tabbott and thanks!
  
  I will try anyway
  Like • Show 0 Likes0
  Actions
  - imett @ suribe on Jan 22, 2014 4:39 AM
    Mark Correct
    Correct Answer
    hi,
    i've had a similar problem with my e4403b, it was a 4x prescaler (i replace it with an Hittite prescaler), i think that the e4402 and e4403 have the same board, and i've the CLIP information about my e4403b.
    If you want i can check the schematics and tell you the true component name
    Like • Show 0 Likes0
    Actions
    - janper @ imett on Oct 30, 2015 1:29 AM
      Mark Correct
      Correct Answer
      hi, i´ve the same problem LO UNLOCK, i think the problem is 4x preescaler.
      
      Could you check the schematics and tell me the true component name.
      
      I await your response
      
      Thanks
      Like • Show 0 Likes0
      Actions
RonCurry Apr 17, 2017 11:45 AM
Mark Correct
Correct Answer
I'm adding to this old thread to add some info that may be helpful to other looking to repair their E4302/3/4/5/7/8 SA. The uTube video on repairing an E4307B seems to have generated a lot of excitement and has driven up prices on broken E430x series SA's on eBay but having bought a couple of them for my own use, it turns out that the CLIP used in that uTube video and available only matches older units and even that one I've been unable to find a version with a clean copy of the RF bottom board layout and schematic that you can read the text. There have been several revisions of the RF/LO board since that version and the units I have very different circuity and do not use the same devices. Both units I have use an Agilent 1GC1-4210 "Multi-modulus Divider" which Keysight no longer makes available in the correct package for these units (16-pin plastic). There are still some chip surplus houses that have them ranging from about $100 to several hundred dollars. The data sheet for the bare die is available on the Keysight website (but not the pinout for the surface mount plastic package) but I've been unable to find a suitable, less expensive replacement. As well, after hours of searching, I've been unable to find a more current CLIP with schematics for these later boards. My 4203B board is E4203-60100 and another I have is E4203-60107.

Hopefully, some will find the above information useful. Since Keysight appears to have no interest in making the more current CLIP available (or even the old one that's in general circulation), it would be very helpful to many of us if someone could at least make some good copy of the RF board top and bottom layouts and schematics and post them perhaps on the Yahoo site. As well, if someone knows of a replacement for the 1GC1-4210 that's less expensive and maybe a still in production product that would make some of us very grateful as well.

Thanks for reading,
Ron
Like • Show 0 Likes0
Actions

ESA E4402B with defective 1GC1-4210

Attachments

Outcomes

Related Content

Recommended Content