Hello!
I'm curious if this problem was ever solved. I picked up a DX-7 today which I got for free and it has a similar problem. When powered on, it says 88. Memory Protect Cartridge On. It's stuck and none of the buttons work.
Thanks.
Jim
toggle quoted message
Show quoted text
--- In YamahaDX@..., "nashoo" <nash00_ion@...> wrote:
I have measured the batterys voltage, it shows 3v. It shoul be ok.
--- In YamahaDX@..., "uldiszemzars" <uldiszemzars@> wrote:
Just replace battery
--- In YamahaDX@..., "nashoo" <nash00_ion@> wrote:
I have started the dx without the connections between the buttons and the moterboard. It's the same, the problem remains. So the buttons panels are ok. Im means that it can be a firmware problem ?
--- In YamahaDX@..., Florian Anwander <fanwander@> wrote:
hello
Am 29.08.2011 16:47, schrieb nashoo:
It shows someting like "27" (i believe some digits are not working), but on the screen it shows "Memory protect cardridge on". I have checked the button, but it is not stucked, it works ok. No ideea what could be wrong. I have also checked the connections between the buttons pannel and mainboard, and they seemed to be allright.
I don't know whether the firmware of the DX works without the panel
buttons, but it might be worth a try to boot WITHOUT a connection
between the panel and the mainboard.
If it starts fine without the panel, you know that the panel pcb is
somehow corrupted.
Florian
