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3577A multiple problems
Today I fired up my 3577A to begin to do some tests.? It has been sitting in my lab, fully environmentally controlled, for several years unpowered.? It was working perfectly when it was put away.
By Peter Gottlieb · #148973 ·
Re: HP 8593A Display repair
thank you for help. picture added. Am 13.12.2024 um 00:11 schrieb Yves Tardif via groups.io:
By Martin M · #148972 ·
HP8594E repair with "ADC-2V FAILL"
A friend sent me a failed HP8594E with the error message "ADC-2V FAILL" over the screen. I searched the network and most of the info tell me the power supply is failed. I opened the machine and saw
By  bv3ue · #148971 ·
Re: 8751A Input Overload
That's interesting that yours is the same. Yes I also found if I reduced the source power slightly everything was OK. I have the IF bandwidth set at auto rather than 4khz I've not noticed this with
By vee-dub565 · #148970 ·
Re: HP 8593A Display repair
Hi, When the Spectrum loses all its calibration constants, there is a chance that you will lose the synchronization of the display on the screen. You should try to do a "DEFAULT CAL DATA" and "CRT
By Yves Tardif · #148969 ·
Re: 8751A Input Overload
Same for me, starting at 5Hz at 0dBm, the message takes a few seconds and appears. But if I put the signal at -1dBm, the message does not appear. But I noticed at 0dBm, that if I put my filter at
By Yves Tardif · #148968 ·
Re: 8751A Input Overload
Done a bit more investigation. I found that it seems to be the bottom end of the sweep that causes an issue. With the sweep set at 10Hz - 500MHz it will sit there quite happily indefinitely, and
By vee-dub565 · #148967 ·
Re: 8751A Input Overload
Hi, If you press ENTRY OFF, does the message disappear and appear again? I have an 8751A, and it works very well. If you connect Port#1 output directly to port R, by default, the RF output is at 0dBm,
By Yves Tardif · #148966 ·
8751A Input Overload
I just acquired an 8751A 5Hz to 500MHz network analyser. We have one of these at work and I thought I get my own to use for personal stuff. So I've set it up for a basic through measurement with a
By vee-dub565 · #148965 ·
HP 8593A Display repair
I have a repair of HP8593A with the following problems: The PSU was fail. now complete recapping, it works. The lithium? battery was rip and the memory empty. Now it have a fresh battery, but the shp
By Martin M · #148964 ·
Re: HP 8341B with HP8410B VNA
I agree with Chuck - easy to change.? But you could also tke a look at the sweep output with a scope to determine if it is st for 1V/GHz or .5V/GHz. Cheers! Bruce
By Bruce · #148963 ·
Re: HP8753E, 8753D, 8753ES 3.5" disk drive replacement reference information
Scott, thanks much for the info.? For my 8753ES can you or anyone else in this thread tell me if I want the reverse polarity cable (default) or the forward polarity cable for item No. 1?
By Frank Mackowick · #148962 ·
Re: HP8753E, 8753D, 8753ES 3.5" disk drive replacement reference information
Slight correction regarding Vladan's comment: This is absolutely correct for the 8753ES, but not for the 8753E which has the same physically wider design as the 8753D.? The difference between the
By Scott Vance · #148961 ·
Re: HP8753E, 8753D, 8753ES 3.5" disk drive replacement reference information
A lot of thanks for all that very useful compilation Vladan! Renaud
By Renaud F5ZR · #148960 ·
Re: HP 8566B issue above 18.5GHz ?
Hi Saevar, ( /g/HP-Agilent-Keysight-equipment/topic/109925844 ) You are right, it is definitely a problem with the analyzer. I am afraid to make any adjustments inside the device at
By wojciechoo@... · #148959 ·
Re: HP8753E, 8753D, 8753ES 3.5" disk drive replacement reference information
My two Aliexpress "Gotek" drives came with latest release of the FlashFloppy fw. /Marcus
By Marcus Gustafsson · #148958 ·
Re: HP8753E, 8753D, 8753ES 3.5" disk drive replacement reference information
For those who would like to replace a broken FD in the 8753ES, here is some information I found in my files. I have replaced several of the Teac floppy drives over the years. I found my notes, no
By pianovt · #148957 ·
Re: HP8753E, 8753D, 8753ES 3.5" disk drive replacement reference information
Scott, it looks like you are correct. Here is a detail from one of the pictures in the ebay listing. V.
By pianovt · #148956 ·
Re: HP8753E, 8753D, 8753ES 3.5" disk drive replacement reference information
Vladan, Evidently the SW on this SFR1M44-DU26 kind of sucks and may not work with some machines.? People online claim that something called Flashfloppy [ https://github.com/keirf/FlashFloppy/wiki/ ]
By Scott Vance · #148955 ·
Re: HP8753E, 8753D, 8753ES 3.5" disk drive replacement reference information
Scott, there is a chance that the ebay seller is making some firmware changes to the standard SFR1M44-DU26 GoTek emulator. Vladan
By pianovt · #148954 ·