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thanks Scott and thanks Hermann for your advice yes I got the service manual and I'm trying to collect the info for the troubleshooting Searching the Web I found a very limited number of faulty YTO

Interesting.....yes please, do tell us where to find them :-)) Alan G3NYK

For all of you with the 859X series portable spectrum analyzers, here is some information that may be useful. Earlier versions of the analyzers used a power supply which was designed and made outside

Hi all, Thanks for your help. I've just found a sch witch seems quite similar to what I have on the boards in this thread: https://community.keysight.com/thread/5140 So I can investigate a bit. The

Hi Roland I have repaired several of these PSU and there is no SCH for it but if you have the SCH for the 8560E series PSU you will find a lot similar. The main error I have found is the switching

Hi : Is there anybody did repair the probe for HP 4815A ? Did anyone had measure the resistance between pins of the probe plug? I did but , the reading had big different from the manual page 5-13 ? I

If the fuse isn't blown, some of the small 1-10 uf caps associated with soft start near the control IC may be bad.聽 You also may need to replace some of the caps on the output side of the supply.聽 A

Hi Roland It is common for no schematics to be available for HP power supplies as these were frequently bought in to a specification not a design from third parties at the time that the 8594E was

Hello Bob,Please call me on either landline or mobile. TnxCliff G4BGP

Hi all, I am trying to repair a 8594E spectrum analyser for a friend. The power supply is faulty, none of the output voltages are ok, all leds on the ps are off. This is the 5062-8229 model, made in

hi am looking for software to operate a marconi ifr spec anl..model 2390...and info on applying to analyser,or where i can get聽 installed..many thanks bob..uk. | | Virus-free. www.avast.com |

Thanks a lot. H15 is 10.7 MHz IF output compatable with option 002.

In the "Files" section of this group, there is an Excel file called "InstrumentOptions 1994.xls". The answer to the secret may be there. Vladan

Hi, I have got a 8560A with options 002, 003 and H15. 002 is built-in tracking, 003 is precision frequency reference, but what is H15 ? Best regards.

Did you check input attenuator (if remember 7dB 5W SMA-m SMA-f) just behind input N connector? For IP address and real time clock, change the battery on main board - Panasonic BR2325 Lithium

I had no trouble finding & using the front panel firmware adjustments for changing the main SA trace brightness but I need to turn up the brightness of the background grids (graticules) and misc text

ok You use the input att to optimize your dynamic range of the analyzer--thats first of all determined by the first mixer 2d 3d compression point.Most hp analyzers are made to use the full dynamic

This is normal when you chance att settings-all but noisefloor will remain steady-thats one of the good things whith the new type of analyzers-- Hardy -----Oprindelig meddelelse----- Fra:

Thanks all � For a bit more information here is what I experience: 1. Set sig gen to 50 MHz, 0dBm 2. Measure signal using VSA == -16.25dBm 3. Set input attenuator for 40dB 4. Measure signal using VSA

Yes But it completes selftest--so the faullt has to be between rf input connector and rf switch(used only for cal)- first mixer. The selftest checks frontend att 1 dB steps from 0-40 with a 50Mhz