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Date
Re: HP8562A Errors 304,335,317,333
I have an 8652b with spurs at -70dBc. In your experience are there any caps which are especially at risk of failure? I have not, yet, opened it to have a look and make measurements. Thanks
By Tom Gardner · #105403 ·
Re: Problem with HP MMS 70000, USERLOCK ON
1. Are you sure the program did run once or is it the first time you try to run this DLP into this 70900B CPU (coming from an OSA) ? 2. There is no way to test the internal memory 3. Try to erase all
By jfphp · #105402 ·
Re: Problem with HP MMS 70000, USERLOCK ON
Hi have you looked at the service manual _____ From: [email protected] [mailto:[email protected]] On Behalf Of Pierre-Fran?ois (f5bqp_pfm) Sent: 22 April
By Paul Bicknell · #105401 ·
Re: Problem with HP MMS 70000, USERLOCK ON
And I measured the effective retention voltage on the vdd of the TC551001CF-70L memories, it's at 2.864v , the datasheet says it should be at 2v minimum to keep up the data, so definitively it's not a
By Pierre-Fran?ois (f5bqp_pfm) · #105400 ·
Re: Problem with HP MMS 70000, USERLOCK ON
I then decided to open my 70900B, have not done this since many years when I upgraded the firmware with the latest from my previous 70952B. At that time I uploaded this latest firmware on KO4BB web
By Pierre-Fran?ois (f5bqp_pfm) · #105399 ·
Re: HP8562A Errors 304,335,317,333
Sound advice. Thank you very much. Stu From: [email protected] <[email protected]> On Behalf Of Peter Hansen Sent: 22 April 2020 08:47 To:
By stur_mm · #105398 ·
Re: HP8562A Errors 304,335,317,333
Hello Stu be very carefull if you will recap the psu. It is an old brittle 4 layer board. solder joints does need alot of heat. You can easy ruin the connection to the middle layer. The 3 legged cap
By Peter Hansen · #105397 ·
Re: Series 1 & 2 boxes (was Seeking Spring Nuts for Series 1 cabinet)
The System II designation refers to the second design of MODULAR case. Not all HPAK instruments use modular cases. Obviously the ones pre-dating? it? can't. 339A and 3456A both use modular cases,
By Robert G8RPI · #105396 ·
Re: HP8562A Errors 304,335,317,333
Steve, Waiting for some ¡°Mate N lock¡± plugs to Test an existing board I have funny config but supplies all relevant circuits (RF) associated with errors I¡¯m seeing. Any ideas on the 3 legged
By stur_mm · #105395 ·
New file uploaded to [email protected]
Hello, This email message is a notification to let you know that the following files have been uploaded to the Files area of the [email protected] group. * /3000 to 3999/HP 3314A
By [email protected] Notification <HP-Agilent-Keysight-equipment+notification@...> · #105394 ·
Re: Series 1 & 2 boxes (was Seeking Spring Nuts for Series 1 cabinet)
Some photos of System I and System II Cases on my website.HP Cases | | | | HP Cases HP Cases for test equipment System I System II Spare parts for sale ? Azur Electronics HP Cases for test equipment
By Steve A · #105393 ·
Re: new File called App notes
david.partridge@...> wrote: At least some of it is a result of taking active design steps to hinder counterfeiting. Dave. -- Dr. David Kirkby, Kirkby Microwave Ltd,
By Dr. David Kirkby, Kirkby Microwave Ltd · #105392 ·
Re: Problem with HP MMS 70000, USERLOCK ON
Hi JF & the Gang, After reloading a fresh DLP NF 70875A from my original ROM personality module I got the same error ERR 2001 and entered once again into the USERLOCK ON dead lock. I was again obliged
By Pierre-Fran?ois (f5bqp_pfm) · #105391 ·
Re: Decline, was Re: [HP-Agilent-Keysight-equipment] new File called App notes
Lack of understanding of low level hardware is surprisingly common...wrote my latest book because of that. Would, in fact, like to keep this email as a testimonial of sorts... --- With best regards
By Tam Hanna · #105390 ·
WTB: 5265A Digital Voltmeter for HP 5245L Electronic Counter.
Good Morning, Thought I would ask on the chance that a *5265A Digital Voltmeter* plug-in might be for sale here. I plan to install the 5265A Digital Voltmeter plug-in into a *K37-5245L Converter
By Terry Gains · #105389 ·
Re: Maximum depth of HP rack mountable gear?
FWIW, here's my experience and method of cutting a rack down to size. Same problem, it was too deep for the available space. http://everist.org/NobLog/20130923_hd_procrastination.htm When setting up
By Guy Dunphy · #105388 ·
Re: Do ManualsPlus still exist
The loss of ManualsPlus and the other physical archives, was a disaster. Few realize the magnitude. Some links and photos here: http://everist.org/NobLog/20190223_full_spectrum.htm#alex As for
By Guy Dunphy · #105387 ·
Re: Boonton Type 260-A Q Meter
Regarding the 260, mine had a failure in the constant voltage transformer power supply.? While today's power is much more stable than yesterday's, the system also provides line isolation which is
By Bob Albert <bob91343@...> · #105386 ·
Re: Boonton Type 260-A Q Meter
Probably the most common problem with the 260 and the RX meter are dirty contacts in the oscillator. Fortunately they are not hard to get to and clean. A few applications of Deoxit will clean them.
By Richard Knoppow · #105385 ·
Re: HP 3314A manual needed
If possible I¡¯d like a copy, thanks!! S.hanselman@... Regards, Stephen Hanselman Datagate Systems, LLC
By Stephen Hanselman · #105384 ·