TS-140s Mod doesn't work? - mars Forum at eHam.net

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eHam.net Forum : mars : TS-140s Mod doesn't work?

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TS-140s Mod doesn't work?	Reply
by KE5HOB on November 11, 2008	Mail this to a friend!
Hey everyone, I received a 140 from another MARS member and he assured me that the mod had been completed. I tried it on the net the next night, and it wouldn't transmit on frequency, but transmitted on the normal ham bands. I opened the case to check and see if the OM had forgotten to do the mod, but the diode had indeed been cut. I bent the diode back to insure it would not make contact, reset the radio and it transmitted on the MARS freq. Since the net was not for another hour or so, I tuned around the ham bands. When I came back to the MARS freq and tried to transmit on it into a dummy load, nothing. Anyone have an idea what is going wrong? Should I completely remove the diode? Thanks in advance!

RE: TS-140s Mod doesn't work?	Reply
by W3LK on November 12, 2008	Mail this to a friend!
What you should do it return the rig to the person who sold it to you and get your money back. Lon - NNN0OOR (Former MDE SMD, Deputy SMD, Assistant For Net Operations) Southern New England Navy-Marine Corps MARS Proudly Serving Those Who Serve

RE: TS-140s Mod doesn't work?	Reply
by K3HVG on November 13, 2008	Mail this to a friend!
What you might try is getting a copy of the mod and ensuring the correct diode was cut and that the reset procedure is/was correctly accomplished. Just a thought.....

RE: TS-140s Mod doesn't work?	Reply
by KE5HOB on November 13, 2008	Mail this to a friend!
Yeah, I opened her up and made sure it was D31 that was cut. Maybe I didn't do the reset procedure correctly. I held down the A=B button and turned it on, maybe I need to hold the button longer?? And I can't get my money back because it was free, and the rig works exactly as it would straight from the factory.

RE: TS-140s Mod doesn't work?	Reply
by WB2GBF on November 15, 2008	Mail this to a friend!
I know that the TS-140s mod works because that is the rig I use on Army MARS. Make sure the A=B button is correctly working before trying the reset again. My rig is starting to show some bounce on the front panel switches and sometimes they don't make contact the first time I press the switch. If it's working, I'd suggest holding the A=B button much longer as you turn power on. Pat

RE: TS-140s Mod doesn't work?	Reply
by WA8MEA on December 2, 2008	Mail this to a friend!
I had a TS-140 years ago and I could have sworn there was one other step needed besides the diode. (I know. I've been through everything on the net and haven't found it.) Back then, there wasn't a net and I called Kenwood to get the info. I even had to give the tech my MARS callsign. I just bought a mint TS-430S. Not only did I have to clip a diode, but I had to clip a resistor. (For MARS freqs only.) If you wanted total transmit in order to get on 60 meters, you pull the #10 plug. 73, Bill - WA8MEA

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