EB5AGV's Workbench: YAESU FTdx-5000 OLED displays repair
Including an step-by-step tutorial done by Mirek SP1NY and Dick SP1FJZ
This page is devoted to the repair of the dreaded vertical white line problem which appear in several YAESU FTdx-5000 transceivers. Mine (pictured) has developed one fixed line and an intermittent one, so I plan to work on it soon. Thanks a lot to Mirek SP1NY and Dick SP1FJZ for their pictures and explanation!. I have added some extra pictures I got on my OLED replacements.
73 JOSE EB5AGV
Tutorial by Mirek SP1NY and Dick SP1FJZ
Fixing erratic VFO-A and VFO-B encoders by EB5AGV
I found a problem with the VFO-A and VFO-B encoders on a rig on which I replaced the OLEDs. It was a 1E25 series.
Those encoders are installed on an independent PCB and can be removed just by getting the knobs out, tilting the front panel and getting out two screws. What I did was pouring a tiny amount of contact cleaner (always of zero-residue type) on them, as both acted erratically. Once I moved them back and forth several times, they began to work as new.
BTW, from the front panel it is not possible to get the contact cleaner inside the encoders, as you can see from the pictures below.
Here you have some pictures of this work:
The encoders are on a sepparate PCB, held just by two screws. First, remove the knobs and then, after getting out top and bottom covers and the needed screws to tilt the front panel (look at the beginning of this page), remove the PCB from the unit:
This is the encoders PCB. As you can see, the black pieces are the cause of the impossibility to get the contact cleaner inside them from the front panel. Just pour a couple drops of contact cleaner on the rear part of the encoders and exercise them several times.
You can even check how they get back to work by connecting the PCB and carefully routing the cable so the encoders PCB hang from it on the side of the rig:
I hope this helps with other erratic encoders. Please, let me know if this works or not in your case.
73 JOSE EB5AGV
More to come soon... keep tuned!