I have a 2 year old FT-2000 with the DMU-2000 data unit. All was fine until one day I powered the station up and found a problem with my RF scope. The base line for the display was no longer at the bottem of the display box, instead it is "floating" in the middle of the display box, and only the extreamly strongest signals apear on it. Anyone see this problem before? Is the a master reset for the DMU-2ooo that might fix this?
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YAESU DMU-2000 issues ....
- Thread starter FT2KDUDE
- Start date
Ok ... here's a photo of what my display now looks like.
Attachments
I have the same problem
I have the exact same issue with my FT-2000 RF Scope, I called Yaesu and they said it sounded like a filter problem on the scope unit board. I was able to fix mine by backing off the drive level on a pot located near the bottom of the board. It stayed fixed for weeks until I moved my setup to another room. I remember setting the drive near the threshold of where it turns back into the white bar accross the screen, perhaps I should have set it less close to that, the reason at the time was the pot linearity was weird and below that threshold the signal peaks were shortened by 40%. and did not look normal until you were right beneath the point where it barred out. I think they are right about the filter, which I think was damaged by a near lightning strike, (200 Yards). I have not re-opened my 2000 to attempt this fine tunning since, when I get the ambition again I hope it works again. Did you ever fix yours?
N2LWN Vinny
I have the exact same issue with my FT-2000 RF Scope, I called Yaesu and they said it sounded like a filter problem on the scope unit board. I was able to fix mine by backing off the drive level on a pot located near the bottom of the board. It stayed fixed for weeks until I moved my setup to another room. I remember setting the drive near the threshold of where it turns back into the white bar accross the screen, perhaps I should have set it less close to that, the reason at the time was the pot linearity was weird and below that threshold the signal peaks were shortened by 40%. and did not look normal until you were right beneath the point where it barred out. I think they are right about the filter, which I think was damaged by a near lightning strike, (200 Yards). I have not re-opened my 2000 to attempt this fine tunning since, when I get the ambition again I hope it works again. Did you ever fix yours?
N2LWN Vinny
