Download ASTRON RMA RMM RSA RSM V 25A POWER SUPPLY service manual & repair info for electronics experts. Download ASTRON RS35M service manual & repair info for electronics experts. ” TIP CAS. I ca IN ICAO. PвKE. | 39A. LM CR3 |. 3 A4. | IN 1 tci +. CI01 +. R8. 3 K. 10v. SCRI I.

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This creates what is known as a “ground loop” that can introduce AC hum in to the DC supply ground return leg. As for manuals, I wasn’t aware they had one or why a person would need one.

A new series of videos is being posted for common rd-35m and educational for troubleshooting. July 31, Contact the site with comments or questions.

I’m thinking maybe the Astron should be set that way too if iCOM designed their “system” that way. Maybe I manuxl to try someone else there. I switched it on and just checked unloaded voltage with my DVM Now I’m hoping that older units were built better and this one will last me a good long while.

Good luck to the repair!


Astron VS-35M Variable DC Power Supply gets an upgraded MOSFET over-voltage circuit

I found that site and referenced it above also. April 27, How to contact Icom America Technical Support: July 30, Is this the correct site? No manual is really needed but thought if one existed I would just store it.

Dragging up an old topic. Because the ground conductors are also of different gauges wire size the DC return current from the radio is now also going to be trying to share the connection through the earth ground manuap.

ASTRON RS35M Service Manual download, schematics, eeprom, repair info for electronics experts

Searched all over for copy of whatever manuals might have been available but cannot find anything. It appears you have a handle on operating the unit, even to the point of correcting meter errors. Instead, contact your nearest service center! You can login to do that! Trying to balance out our three phase loads we noticed that there was an unaccounted for power loss.

Usually this would be much more pronounced on instrumentation loops industrial control with pressure transmitters operating off of a mA current loop es-35m example.

Anyone have a copy or know where Ds-35m could obtain it? I cannot find anyhting on Astron’s website, except their catalog. Checked earth safety ground to chassis resistance: July 28, Also some files are djvu so you need djvu viewer to open them.


August 14, Looking for other manual? As for illuminating the meter, that is a piece of cake. I had called Astron but they were not very helpful, only saying “it depends” and not offering any rationale.

Astron VSM DC power supply

If you are not familiar with electronics, do not attempt to repair! Had a typo above corrected in red. To open downloaded files you need acrobat reader or similar pdf reader program.

I have seen this manua, with a substation where we have this gigantic buried ground mesh. Not sure what, if any, problems I might see as a result and am inclined to leave it alone for now. We’ll see you in a couple of weeks it’s that deep of a bench. Picked up a used RSM. There is no preview for this item!

Two white LEDs with a single dropping resistor is all that is needed.