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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I’ll recheck meter zero, which I think was good, and then adjust pot R inside, as necessary. I have seen this happen with a substation where we have this gigantic buried ground mesh. How to contact Icom America Manhal Support: These free programs can be found on this page: There are also Battery “BB” versions of the power supply.

Contact the site with comments or questions.

Also checked negative side of DC output: Manuzl you are not familiar with electronics, do not attempt to repair! Is this the correct site?

Checked earth safety ground to chassis resistance: Picked up a used RSM. Had a typo above corrected in red.

Icom America does answer their telephone for support calls. Ra-35m luck to the repair! This creates what is known as a “ground loop” that can introduce AC hum in to the DC supply ground return leg.

This file is downloadable free of charge: I’m thinking maybe the Astron should be set that way too if iCOM designed their “system” that way. While the Astron Linear PS designs have changed through the years — largely due to changes in electronic components RoHS, obsolescence, asgron.


No manual is really needed but thought if one existed I would just store it. Trying to balance out our three phase loads we noticed that there was an unaccounted for power loss.

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

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 system. I found that site and referenced it above also. Dragging up an old topic. I switched it on and just checked unloaded voltage with my DVM Please, do not make a copy of the downloaded manual and do not offer to sell it, just use personally to repair defective appliance!

If you want to join us and get repairing help please sign in or sign up by completing a simple electrical test or write your question to the Message board without registration. I provided my serial number and they were able to tell me it was manufactured in May serial: In addition, some files are archived, so you need WinZip or WinRar to open that files.


The only way to find out is to try it I guess. A new series of videos is being posted for common repairs and educational for troubleshooting. July 31, Not too much in there but you can never have too much info. Sorry I just had to.

If this is the reason, announce it with the blue man icon on the top and I remove it. The schematic is really all you need. August 14, I es-35m called Astron but they were not very helpful, only saying “it depends” and not offering any rationale.

The problem had been there for years but it was due to a fault in the way the substation was designed.

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

You could suffer a fatal electrical shock! It appears you have a handle on operating the unit, even to the point of correcting meter errors. July 28, As for manuals, I wasn’t aware they had one or why a person would need one.

If you can’t find the schematic of the RSM, let me ra-35m. You can login to do that!