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Re: FM Tuner alignment generator?..
With an HP generator with that stated distortion value, I can't imagine you can - though in my experience HP instrumentation often far exceeds its stated spec. But I never used an HP generator for
By Radu Bogdan Dicher · #122425 ·
Re: HP-8753E Option Key Installation Failure
Ah, depends on what the DMM does with pulses (if any). you don't need a logic analyzer except to perhaps trigger the scope.? I'd look at that line and the one it was shorted to, and better yet, the
By Harvey White · #122424 ·
Re: HP-8753E Option Key Installation Failure
I was simply probing the pin with a ProbeMaster fine point probe connected to my DMM. I do have a Logic Analyzer in my MDO3102, but I would have to see where the data line is coming from. I would be
By Rich Miller · #122423 ·
FM Tuner alignment generator?..
I have looked at the distortion specifications of the HP FM generators in this tread. They state distortion between 3 % to 1 % so far. The Sound Technology 1020 that I use has a stated distortion of
By Goran Finnberg · #122422 ·
Re: HP-8753E Option Key Installation Failure
Try Winslow Adaptics for chip layout converters. Sent from my iPad by banging a nail into a piece of wood...
By nigel adams · #122421 ·
Re: HP-8753E Option Key Installation Failure
Digital oscilloscope, storage oscilloscope, peak reading voltmeter, regular oscilloscope in a dim room. You're measuring the voltages (right now) as static voltages? That may not be helpful. PLCC
By Harvey White · #122420 ·
Re: [HP-Agilent-KI eysight-equipment] FM Tuner alignment generator?..
Panasonic and Meguro make some great units. I have a Panasonic - which in some communities is kind of a standard for this - and I hate to do this, but if people would know how good these are at
By Radu Bogdan Dicher · #122419 ·
Re: HP-8753E Option Key Installation Failure
Hi Harvey: I have no way to check the voltages while writing to it (at least not reasonably). I think its time to invest in a EEPROM writer/reader for PLCC. Rich
By Rich Miller · #122418 ·
Re: HP-8753E Option Key Installation Failure
If you can remove the eeprom, and then check the voltages when writing, that might tell you if the driver for DQ6 is damaged.? If you could read the EEPROM in another setting (PLCC adaptors are
By Harvey White · #122417 ·
Re: HP-8753E Option Key Installation Failure
Hello All: Today, I took another look at the issue, and made an interesting discovery. The AM29F010-70JC EEPROM Pin 20 (DQ6 line) was damaged while installing the PLCC package into the socket. I
By Rich Miller · #122416 ·
Re: 11710B Down converter
Futurlec has 2N2218 in stock. The ubiquitous 2N2219 is the same part, just higher hfe. HP knew about the 2N2219 so maybe they had trouble with instability. You could probably select for low hfe.
By Dave Wise · #122415 ·
HP8753C won't phase lock below 16MHz with A9 CC jumper in 'NORM'
I'm trying to recucitate an HP8753C. I replaced the YTO which was bad and was able to do the 'Source Pretune Correction Constants' adjustments procedure. This is done with the A9 jumper in the 'ALTER'
By vk2bea · #122414 ·
Re: Help E4402B 1DR Option not working
Dave, THANK YOU!!!! It worked!!!!!!! Best, Francesco K5URG Sent: Saturday, February 12, 2022 1:01 AM To: [email protected] Subject: Re: [HP-Agilent-Keysight-equipment] Help
By Francesco Ledda · #122413 ·
HP 8595E Restore and Tracking Generator Questions
Just want to start out by saying I have no background in EE but I am a ham who has restored an older tube radio (SB-101) as well as two Tektronix 24XX scopes (recapping both was the ultimate fix for
By Chad · #122412 ·
Re: HP 54645A internal battery
I was correct. ?There is no standalone battery in this scope. ?They are simply referring to the battery in the NVRAM module. ?This must have been a condition of the Navy contract to put that
By Manuel Maseda <mmaseda@...> · #122411 ·
Re: Dead 54720D
The command is "BPEK". It takes two arguments: address and length (in decimal if I remember correctly), and returns raw bytes prepended with a short ascii header. There's a limit to the length that
By Mike Walters · #122410 ·
Re: Dead 54720D
Do you have the list of gpib to dump? the FW? ? i can try this
By boddax@... · #122409 ·
Re: HP-8753E Option Key Installation Failure
Rich, There is nothing wrong with just reading the contents of the EEPROM. Then store the original safely and program another one for a test. I¡¯ve done that a couple of time for spectrum analyers.
By Harke Smits · #122408 ·
Re: HP-8753E Option Key Installation Failure
Leon: That is good information. In a little while, I am going to test my S400 Jumper to make sure when I toggle #8 on the dip switch, I am getting continuity. The idea of having to pull the EEPROM and
By Rich Miller · #122407 ·
Re: HP-8753E Option Key Installation Failure
Hi Rich, I've done an option upgrade 14 days ago on my 8753D (with the CPU 000 board, which is probably also in your VNA). I've got the same error, because I did not flip the jumper (there is no A9
By LeonP · #122406 ·