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HP 8565E problem
Hello group, After year of a good service our HP 8565E is getting some illness. I have tried to look to 8560x service manual which was available, but the error numbers, which the 8565E gives are not
By OK1VAW Vojtech · #23700 ·
Re: HP8568B Error Correction Routine failure
I've worked on a lot of these in the past 25 years and have found the step attenuator to be one of the weak areas, especially since it's an electro-mechanical part. The internal O-rings age and get
By STEVE REEVES <steve_reeves@...> · #23699 ·
paper manual wanted (and CRT bezel)
Hello all, I'm looking for the following (paper) service manuals, any offer is welcome (even if not exactly matching my serial numbers): HP-182T ser. 2010A-xxxxx HP-180A/AR ser. 816-03899 Y59-180AR
By Francesco Messineo · #23698 ·
Re: HP-182C repair
Hi Frank, I have restored a couple of 180A scopes, one of which was a late model with a horizontal deflection board which I think is like the one in the 182. You mentioned that you have checked
By Steve Rooke · #23697 ·
Re: HP8568B Error Correction Routine failure
________________________________ To: hp_agilent_equipment@... Sent: Monday, September 28, 2009 10:43:15 PM Subject: RE: [hp_agilent_equipment] Re: HP8568B Error Correction Routine failure
By Didier Juges <didier_juges@...> · #23696 ·
Re: HP8568B Error Correction Routine failure
Sure, but since he sees exactly the same signal level with both 40 and 40+20 switched in, I'm not inclined to think the 20 dB section is switching at all, open ground or not. It seems that it would
By John Miles <jmiles@...> · #23695 ·
Re: HP8568B Error Correction Routine failure
________________________________ To: hp_agilent_equipment@... Sent: Monday, September 28, 2009 12:00:50 PM Subject: RE: [hp_agilent_equipment] Re: HP8568B Error Correction Routine failure
By Didier Juges <didier_juges@...> · #23694 ·
Re: (unknown)
1826-0796 is a SW-02FQ 1826-0938 is a DAC-10FX 10-Bit High Speed Multiplying D/A Converter This is from HP cross reference. 73 Glenn WB4UIV
By Glenn Little · #23693 ·
Re: HP8568B Error Correction Routine failure
Hi Art, Check if the results are repeatable. What happens if you exercise the attenuator? Do you get the same results every time? As John says, it could be the driver circuit for the attenuator, but
By pianovt · #23692 ·
(No subject)
Looking for a cross reference for: 1826-0938 1826-0796 Jim Cotton n8qoh
By Jim Cotton · #23691 ·
Re: HP8568B Error Correction Routine failure
John Miles wrote: In one of mine, one of the attenuator section's solenoid was stuck in one direction. There is a contact for each direction of movement that allows the solenoid current to flow
By Dan Rae · #23690 ·
Re: HP8568B Error Correction Routine failure
Sounds like the driver for the 20 dB pad is stuck on, although I'm not sure how that accounts for the -7.7 dBm business (Why isn't it -10? Attenuators don't fail in a way that yields +2.3 dB of
By John Miles <jmiles@...> · #23689 ·
Re: HP8568B Error Correction Routine failure
I did it. This is what I see disabling the IF step switching: ATTEN 10dB --> peak at -10,7 dBm ATTEN 20dB --> peak at - 7,7 dBm ATTEN 30dB --> peak at - 7,7 dBm ATTEN 40dB --> peak at -30,9 dBm ATTEN
By ik7jwy · #23688 ·
Re: HP-182C repair
Hi Paul, I'm still testing with no plugin. Try it, with display on EXT and 400 Hz on ext input you should have a clean horizontal track. It can be focused pretty well also (tried on the 182T). I'll
By Francesco Messineo · #23687 ·
Re: HP-182C repair
Hi Frank, When I was de-bugging my 182C, I did find that one of the Y plate drives was open circuit at the sliding contact that goes to the Y amp plug-in, as I recall this caused all sorts of odd
By Paul Read <paulr@...> · #23686 ·
Re: Agilent E4420 series Sig Gen
Hi Steve, I am not very up on the options, but the Agilent site should have all the info. EBay is probably the most realistic gauge of price. Cheers Paul
By Paul Read <paulr@...> · #23685 ·
Re: HP-182C repair
Hello again Erich, the tube is the same I think. yes, that's what I see on the horizontal plates too.
By Francesco Messineo · #23684 ·
Power sensor calibration system
Hi all, My lab was audited recently by an ISO auditors. I have some old units with me in which i use to calibrate the older version of sensors but now after getting audited by these people , i learnt
By ruben_rock <ruben_rock@...> · #23683 ·
Re: Options for CISPR 25 EMI Test Instrument ?
Hi Mark, For conducted emissions tests, you will probably use a LISN. The most important piece of equipment you will need is a 11947A to protect the analyzer from tarnsients. Without it, you will very
By pianovt · #23682 ·
Re: HP8568B Error Correction Routine failure
It could be either. There is a good way to check. Set up the analyzer like John said to view the calibrator. Then, use the "shift-q" (that's a small "q") function which will disable the IF step gain
By pianovt · #23681 ·