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Hello!
As a gift for Christmas (yes, a bit early one, I know :-)! ) I have got a Yaesu FT-736R which, sadly, has seen better days. Good thing is that it came loaded with some extras, as the FVS-1 voice unit and FTS-8 CTCSS unit (which lately is selling at about US$150 at eBay). It has also the 1.2GHz module fitted. And internal power supply, after some work on it (usual cracked solder joints), is also working. Bad thing is that it has scratches all around the front panel and one digit of the display is gone. I have checked circuit and culprit is a large SMD circuit which manages, among other things, the VFD display. As most of these units, it is a time multiplexed display. What is faulty is the enable signal in the bad digit. I have checked it and, if I connect that digit to any other enable line from other digit, it works fine. So I am looking for a front panel and also a DISPLAY UNIT PCB. A set of knobs would be also interesting. I would take a complete FT-736R if necessary. Please, let me know if you can help. Best regards, JOSE PS: I have thought of doing a little hack in the display circuit, generating the missing signal using the previous digit enable as a trigger. This signal is a 1 ms width pulse, which is -32V iddle and +5V when active... any hint welcomed! ---------------------------------------------------------------------- 73 EB5AGV / EC5AAU - JOSE V. GAVILA La Canyada - Valencia (SPAIN) - Loc: IM99SM Vintage Radio: http://jvgavila.com Vintage Test Equipment: http://jvgavila.com/testeq.htm European Boatanchors List: http://groups.yahoo.com/group/euro_ba_swap |
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