[1000mp] Maintenance and Repair of the Mark V FP-29 PSU

[Larry]

I have been following the discussion re: turning off or leaving on the FP-29 
PS.
I sent an inquiry to Yaesu tech support asking that same question, and here 
is their
response. . . . . .

Larry, just turn the unit on and leave it on all the time that should not
hurt the PS.


Thank you,

Tech Support

R. Fortin

N6NFA


----- Original Message ----- 
From: "Ed Hughes" <kg4w at comcast.net>
To: "All about Yaesu 1000mp" <1000mp at mailman.qth.net>
Sent: Wednesday, January 30, 2008 2:16 PM
Subject: Re: [1000mp] Maintenance and Repair of the Mark V FP-29 PSU


>
>> I never turn my power supply off. Just wondering
>> what others do ? I am under impression that turning ps on/off will 
>> shorten life of the backup lithium battery in the rig ?
>> Ed
>> KG4W
>
> I think my procedure of not turning off the power supply
> was partly caused by misinturpting a statement in the Mark 5 user manual. 
> I went thru several lithium batteries
> while fixing a defective CAT port problem (wound up
> buying a spare control board) & sending my defective board to Calif for 
> repair.
> Some owners may not be aware of the statement in the
> manual & this may be contributing to short lithium battery
> life. As I (now) understand the statement, I pertains only
> when the "backup" switch (on rear of rig) has been turned
> off & now you want to turn it back on. Page 115 of
> manual sez "Ensure the radio is ON when sliding the
> backup switch back to the ON position, as this reduces
> the initial current demand on the battery by the radio's
> circuits from an un powered state"
>
> Of course, (now I know) the only reason to turn the "backup" switch off
> is when the rig is going to be off the air for a long period
> & you want to conserve battery life. When I was dealing
> with my CAT problem & replacing lithiums, I was turning
> the "backup" switch off & then probably not following
> the statement in the book.
>
> Ed
> KG4W
>
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