N2MG concluded:
>However at least three of you suggested the "backlight" supply. Being
>adventurous, I started disassembling the radio (without the service manual
>which is on order - c'mon, I just bought this radio!) and lo and behold,
>Yaesu put the inverter circuit right where it belongs - on the display-side
>of the "EMI firewall" behind the front panel so it was easy to find. One of
>the emails I received suggested I look at the thermal fuse and sure enough,
>TF1 was open as suspected. Bravo!
My turn to suggest searching eHam.net, where you would find that I posted
some time back that TF1 could be the culprit. ;^)
Finally figured that one out after the third failure. Credit for that goes to
JA1RJU. Yaesu itself seemingly knew nothing about it. Bounced the idea
off K7JA & didn't get a thumbs down but didn't exactly get a thumbs up,
either. I sense the official position will be that power supply for backlight
tube is considered a part & therefore is to be replaced outright - typical for
an out-sourced module like this.
73, BW2/VR2BrettGraham
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