[Yaesu] What is it?
Darryl J. Kelly
[email protected]
2002年5月25日 19:59:57 -0500
Bob,
That type of number refers to an unpopulated Yaesu circuit board. My FT-990
tech manual has numbers for the main boards starting with F31760000A and
going up, the control board is F3180000A. The 990 has three of the I/O chips
but uses an M37700M4 CPU. It's probably a control board but not for a 990.
Hope this is of interest.
73,
Darryl, KK5IB
----- Original Message -----
From: "Bob W7AVK" <[email protected]>
To: <[email protected]>
Sent: Saturday, May 25, 2002 4:54 PM
Subject: [Yaesu] What is it?
> Gang - Came up with an interesting Yaesu NOS pc card. Has Yaesu Musen
> F2527000A part number etched on it. Its about 4.5 by 11 inches with a
> couple dozen ICs, several of the 40 pin type and in sockets, and about
> 24 various size cable connectors around its parameter. One of the
> large ICs is a 80C85A [CPU chip] and three are 8255AC [Input / Output
> chip] which leads me to believe its some kind of computer or control
> card. But for where or which radio? Any ideas? Anyone what to make an
> offer?
>> Thanks,
>> 73 Bob W7AVK
>>>> Moderator: Ray Brown, KB0STN
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