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Date
Re: Agilent 54845a Infiniium 1.5 GHz Scope Trigger self-test Failures
-- I am looking for an ?ADC ?plastic socket, with the Pogo pins for the Agilent / HP 54845a ?1.5 GHz scope. I think I have located at least one problem: ? ?I have one damaged plastic ADC socket,
By gren · #96023 ·
Re: HP 53310A POST errors
My 53310A is normal again! I have to wait for next chance to find out what causes the problem. Jack
By Jack2015 · #96022 ·
Re: hp8753B_Phase_Lock_Lost
Hi Peter, Honestly, for sure I'm not. The last time the same problems arose, I finally had to have the YTO repaired. Now I would have a replacement here in case of a case. Armin HB9MFL
By Armin Roesch · #96021 ·
Re: Anybody have schematics or link for schematics of HP 3488A switch control unit?
Yes and thanks guys, the 3488A is a very robust instrument - virtually indestructible.? Never was an I/O card ever sent back for warranty repair or for out of specification replacement.? Those
By [email protected] · #96020 ·
Re: My $25 "In Poor Shape" 3468A has arrived
Alex, Those Vishay resistors from China are the real deal.? They are pulls and affordable.? That is if they are from the company I have purchased them from previously.? ?A year ago I purchased
By [email protected] · #96019 ·
Re: Service Manual for HP 3708A
Hi Gerald, I sent you an e-mail from my private address, to get news on the manual, but I didn't get an answer. I don't know if they arrived. Dario IU3ARP
By Dario · #96018 ·
Re: My $25 "In Poor Shape" 3468A has arrived
Comparison readings between 3478A and 3468A ----------------------------------------------------------------- Used my little resistor standard box I build around a Caddock (
By Alex · #96017 ·
DSO-X 3034A power supply pins
I am looking for information to trouble shoot scope that just quit? there is no help or drawing in service manual
By [email protected] · #96016 ·
Re: Anybody have schematics or link for schematics of HP 3488A switch control unit?
Hi Tim, I used two 3488A units for several years, this was a very reliable instrument and very useful. You and your colleagues did an great job with this 3488A. Congratulations ! Regards Yves De :
By Yves Tardif · #96015 ·
Re: Anybody have schematics or link for schematics of HP 3488A switch control unit?
Brilliant George, Sounds good and if you have a small amount of time during the visit we can potentially meet up. I am only in Stevenage/Luton area (approx 30 miles north of London... simples.
By nigel adams · #96014 ·
Re: Anybody have schematics or link for schematics of HP 3488A switch control unit?
Nigel, I will see what I can do.? The same connector blocks were used on the HP3421A portable data acquisition unit so look out for those.? Unfortunately when you purchase cards, the connector
By [email protected] · #96013 ·
Re: My $25 "In Poor Shape" 3468A has arrived
Hi George, Very nice explanations. I will follow your advice and calibrate the 3478 as well on 4W. Its just that I was a bit less trusting about its calibration than the 3468, so my reasoning went to
By Alex · #96012 ·
Re: Existing HP 70K, HP 7000 thread on EEVBlog, was .... Keypad for 70820A module,
For HP70K, ?HP7000 users: There is also a thread for HP70K technical & repair issues, ?on the EEVBlog with photos, schematics & interleaved text.
By gren · #96011 ·
Re: Anybody have schematics or link for schematics of HP 3488A switch control unit?
Seconded! I have two, and love 'em. They are wonderful units, damn handy. Nice work George and team. -Dave
By Dave McGuire · #96010 ·
Re: HP 53310A POST errors
Hello, now I am awake again. IMHO; the next test we must do is to check if the CPU card is farting out a video waveform. If you see the "marching ants pattern" on the LEDs of the card, it is very
By Tam Hanna · #96009 ·
Re: Anybody have schematics or link for schematics of HP 3488A switch control unit?
Hi George, Congratulations on a nicely executed design. I love it... simple to use and straightforward to fix. As i said,i have two chassis with various switch or i/o cards in each. What i don't have
By nigel adams · #96008 ·
Re: hp8753B_Phase_Lock_Lost
Are you sure it is the YTO? Peter
By Peter Gottlieb · #96007 ·
hp8753B_Phase_Lock_Lost
Newly this error appears. Does somebody has a reliable source for spare YIG. In may vna is a 5086-7718 mounted. Armin HB9MFL
By Armin Roesch · #96006 ·
Re: Anybody have schematics or link for schematics of HP 3488A switch control unit?
Tim, Tell me what it is you are looking for and I can help you.? I was the analog design engineer on the HP3488A. I designed the 444XX series of I/O cards and have a large supply of all the parts for
By [email protected] · #96005 ·
Re: Anybody have schematics or link for schematics of HP 3488A switch control unit?
George, Nice work. I still have a few, one of my sons used a couple for a High School project with a 3456A to plot the discharge curves of several different types of cells. These are a great bargain
By Peter Gottlieb · #96004 ·