Dear DonM, Bob Gelman and others members,

My PSR 2000 is Main Program 1.10. However it has the main problems DonM claim, solved. So, though I have the possibility to get the upgrade to Main Program 1.20, I am in doubt if I need to make it, as I donīt know any bug 1.20 solve compared with 1.10.
Again I ask the favor to 1.20 owners if they can help to answer to this doubt.

I have seen the main printed circuit board of the 2000.
It is designed to have EPROM and FLASH ROM (both). This is, it could be mounted with EPROMs or FLASH ROMs as there are in in the printed circuit board the places for the two alternatives.
However as all we know, Yamaha decided to mount SMD (Surface Mounted Device) EPROMs. Now the desoldering/soldering problems appear.

I don't know if there is sockets to SMD EPROMs as Bob Gelman suggest, though I guess there is not.

Carlos Rodrigues