Hi Peter,

I got an email from some one who said:

---- Quoted-----

TX802 OS is stored in three eproms:

XB223 - IC11 (Slave)
XB224 - IC6 (Main)
XB536 - IC10 (Wave)

If XB223 (Slave) and XB536 (Wave) are labeled [B],
there is no need to update this two eproms.

In this case, only update XB224 (Main):

XB224007 IC EPROM V1.5 17-JUN-88 (Final Version)

------ End Quote -----------
Mine are in fact stamped [B]

Are you in the continetal USA?

Thanks, Nick



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--- In yamahablackboxes@yahoogroups.com, "pcbye111" <pcbye@...> wrote:
>
> Greetings again:
>
> It looks like V1.5 and it is a three chip set. Again, I don't recall why off
hand, but I think there are four total, but for some reason, one of the patch /
code chips did not change if I recall, but the two CPU chips need to be upgraded
for sure.
>
> The Binaries are about 32k in size, but once again, if I recall they are on
64k chips. I will have to wait until I get home and pull them out of the box.
They are chips 6, 10 and 11 on the system board anyway.
>
> BTW: A system reset will wipe out any user patches, so you should save them
via MIDI or cartridge before hand.
>
> Regards;
>
> Peter
>