You can esily check that because the getter material (silvery metal deposition on The most usual problem of a VFD seems to be the loss of vaccuum. If there is real interest in this, I can do it, please email me. With the spare pins you can even keep some of the USB CAT functionality, unthinkable for such an oldie! If the TMS2370 is ok but the VFD is faulty, then you have to replace both, so it is the same as above.If the TMS2370 is faulty and the VFD is faulty as well, it can be modified to drive a LCD.If the TMS2370 is faulty but the VFD is ok, it can be modified to drive the original VFD.You can deduce this from the FT-757GX Tech manual. ![]() I don't have the datasheet for the TMS2370, but it seems to be a simple 13 chars, 7 segments VFD display driver. (Note: See update at the bottom)ĭue to the fact that my Enhanced CAT project decodes the data lines that communicate the MCU to the display driver TMS2370, this can be used to solve a few common problems for this transceiver.
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