Display backlit issue fix
I bought an older TRX KENWOOD TM-V7E via eBay. The rig was in a very good shape but with the tipical issue of this device. The display was almost unreadable. It was very difficult to make any setup and read the display information especialy the description of function buttons at the botton of the front panel.
Fortunately the display itself was in very good condition with no missing rows or pixels.
I found a wabe page of Benjamin DL8NBD with a description how to fix the contrast and blurry display by replacing the original blue backlit LEDs with 4 new Nichia NSPW310DS Sel. b2V/W LED wired White Circular 3 mm 6800 mcd 50 ° 20 mA 3.2 V.
I was note sure if I would be able to do this fix by myself but I found it very easy.
Please, note when you use the recommended Nichia NSPW310DS Sel. b2V/W LED wired White Circular 3 mm 6800 mcd 50 ° 20 mA 3.2 V you will get just pusitive white onyl leters or negative. The black colored letters are no more available.
Pls, see the step by steps pictures below:
The whole procedure tool me at about 1.5 hour including the time I spent with finding the ways how to disassemble unit. The final result is visible here.
I hope the rig will serve several more years now. 73!