Agilent 53131a Switch - Page 1
Forum section: electronics / repair

author: mrbook
author_rank: Contributor
timestamp: June 12, 2015, 06:06:24 am
content: Hello Everybody,I was in the process of installing the 3Ghz option in my 53131a frequency counter and noticed some little white pieces floating around the front panel so I decided to open it up and see what it was from. As you can see in the picture it looks like the button appears to be toast as the little clips that hold the switch together have broken off. Does anyone have any idea where I can pick up a new button?Any help would be greatly appreciated.mrbook

author: free_electron
author_rank: Super Contributor
timestamp: June 12, 2015, 07:05:51 am
content: I believe these are either alps or preh switches. Digikey has em.

author: HighVoltage
author_rank: Super Contributor
timestamp: June 12, 2015, 07:09:36 am
content: You can also order them directly from Keysight.I have ordered many original knobs and switches from Keysight in the past, when I could not find them anywhere else.Keysight has a website for selecting parts:http://www.keysight.com/my/faces/fapHomePage.jspx;jsessionid=dDPRV6FXwKh0rT96Q4qmqjf0JVX6YH10mhysmMLVp9Xh8RHjz4ND!-1149929029?_afrLoop=418013204518000&_afrWindowMode=0&_afrWindowId=null#%40%3F_afrWindowId%3Dnull%26_afrLoop%3D418013204518000%26_afrWindowMode%3D0%26_adf.ctrl-state%3Duggj0ejtf_4

author: mrbook
author_rank: Contributor
timestamp: June 12, 2015, 03:47:26 pm
content: Thanks for the reply's I will take a look. If anyone has any ideas on part numbers please let me know. The only numbers on the switch are 9734 and 201 and the first one looks like a date code to me.Thank again,mrbook

author: edpalmer42
author_rank: Super Contributor
timestamp: June 12, 2015, 06:14:30 pm
content: You could try something radical like look up the part number in the service manual which is easy to find on the net.Ed

author: mrbook
author_rank: Contributor
timestamp: June 12, 2015, 06:34:16 pm
content: Quote from: edpalmer42 on June 12, 2015, 06:14:30 pmhaha, thanksThat was the first thing I did but all I could find was the part number for the entire front panel assembly.mrbook

author: mrbook
author_rank: Contributor
timestamp: June 12, 2015, 06:42:07 pm
content: Ok I fail at google. I was looking at the wrong damn manualin case some one comes across this later the part number info is below.3101-3226 SWITCH-PB DPDT ALTNG .1A 50 VAC PVA2-EE-H1 ITT INDUSTRIES

author: engiadina
author_rank: Contributor
timestamp: June 13, 2015, 06:51:13 pm
content: Why don't you just order this part as spare part from keysight?Could not get that link to the keysight website to work ...So, at their site, look for parts, enter the part number and you will find it orderable ..

author: mrbook
author_rank: Contributor
timestamp: June 13, 2015, 07:45:37 pm
content: Quote from: engiadina on June 13, 2015, 06:51:13 pmYep, that is what I did.Here is the link to the part below.http://www.keysight.com/my/faces/partDetail.jspx?partNumber=3101-3226I also believe you could order the part from here but I have not verified this I am just going off the mfg. part number.http://www.digikey.com/product-detail/en/PVA2EEH1%201.7NV2/401-1140-ND/417721or herehttp://www.mouser.com/ProductDetail/CK-Components/PVA2EEH1/?qs=sGAEpiMZZMvxtGF7dlGNppSJhFYLbxspoFl4JI9SE3U%3d

author: 128er
author_rank: Regular Contributor
timestamp: June 13, 2015, 11:13:19 pm
content: Good to see that. They look almost like the ones in the Tektronix differential probes. Had to disassemble and fix them. I was not able to find the damn things. Replacement would be more reliable.for reference, Post #53:https://www.eevblog.com/forum/testgear/tek-p5205-hv-differeantial-probe-teardown-btw-what-are-the-red-and-brown-wires/45/

author: mrbook
author_rank: Contributor
timestamp: June 14, 2015, 06:34:33 am
content: Quote from: 128er on June 13, 2015, 11:13:19 pmYeah they look almost identical to the ones in your probes.