[Yaesu] FT2600M MEMORY PROBLEM

[Cboone@earthlink.net]

Well I would take out the relay and leave the radio tied to the battery
(do you have both POS and NEG there??) Also if that does NOT work,
THEN ADD a memory battery to the radio...it aint that hard with a 
flat watch style silver button battery and a diode...just feed it to
the line to the CPU...

Either way should fix the problem...

HOWEVER, also look for a dirty or sticky button on the front panel..
is there one which when pressed and power is cycled, it does a reset???
MY TM742 has that problem...and its one of the vol/sq controls which
got slightly bent when the rig was dropped one....(face first of 
course!)...I have to be careful or else the CPU gets reset on startup
and it IS a pain reprogramming 100 channels per band!!!

Chris
WB5ITT

"Patrick A. Thompson Sr." wrote:
> 
> I've had this identical problem and have not found a fix.  My radio is long
> out of warranty.  Currently the radio is powered directly from the vehicle
> battery with a relay to disconnect the battery during cranking, etc. as
> suggested by Yaesu tech people.   The reset is related to engine cranking so
> use on a bench supply might be okay.  The radio also seems to reset more
> often with more memory channels programmed than with just a few programmed.
> I can program just two or three memories and the unit will be okay for
> months at a time but if I spent an hour or so and program 100 channels it
> will reset within the same day.
> 
> I've tried adding capacitance to the five volt regulator internal to the
> radio that supplies the processor without any improvement.
> 
> There is no internal memory battery in this radio to replace as some people
> have suggested.
> 
> In my opinion there is a serious flaw in the design of the radio that allows
> this reset to occur even with reasonable care.
> 
> An equivalent new radio is less than $200 so there's a limit on how many
> times I'm willing to ship it back for repair.
> 
> Its a shame these units have this flaw because otherwise its a satisfactory
> radio with good transmit audio and good immunity to intermod from high
> powered FM and TV transmitters nearby.
> 
> Pat
> WA4TUK