Re: DX7 Memory Corruption
| Newsgroups | gmane.music.equipment.yamaha-dx |
|---|---|
| Message-ID | <[email protected]> |
Now I have found in schematics, that battery voltage is measured by diagnostics directly, not through diode - it’s a wire marked VB (probably Voltage Battery) which goes to IN6 (this looks like one of inputs to IC11 = ADC), you can find it near IC10 2/2. Daniel Forro > On Sep 4, 2018, at 13:13, [email protected] [YamahaDX] <[email protected]> wrote: > > A diode can fail by going open circuit, or by becoming practically a short circuit. > > If the diode is open circuit, the battery voltage would still be read as being correct - it just wouldn't provide any backup power to the RAM. > > - Andy > >