Roland D-10/20 Hidden Features
WARNING: Do at your own risk. Any of these tests may wipe out the contents of the internal memory. Backup up everything before experimenting. This is not official Roland information.
This warning was included when I found this information. I personally have not lost any data except, of course, when using the Initialize function. It is still a good idea to backup your work. I backup before I turn my D-10 off because you never know when the battery is going to go dead, especially if you bought your synth used like I did.
Turn on power while holding down these buttons...
TUNE/FUNCTION + WRITE
Initialize D-10/20. it puts Group b tones into Group i and all the performance patches are named
WARNINIG: YOU WILL LOSE ALL YOUR CUSTOM SETTINGS, TONES, ETC.! ALL TONES YOU ONCE KNEW AND LOVED IN THE i GROUP WILL BE GONE!
EXIT + EDIT
Puts the D-10/20 into diagnostic mode which allows you to perform the following tests. Hold down the EXIT button , then press the second button.
EXIT + EDIT
Memory Test: performs 3 different memory tests: W,T, and C. W and T always come out OK for me though I don't know what they mean. I assume C is for MEMORY CARD. I only have a ROM card and when it's in I get C=P.ON(protection on). When it's out I get C=NC (no card).
W=OK T=OK C=P.ON
EXIT + TUNE/FUNCTION
Controller Test: shows the value of the BENDER (Bend), MODULATION (Mod), VALUE (Val) slider and which button (SW) you press. The keys play an organ tone. Bend displays a value between -127 and +127 as the pitch bends between -1oct and +1oct. Mod and Val display a value between 00 and 127 as the pitch bends between the standard pitch and +1oct. SW shows you what button you press.
Bend Mod Val SW
-107 05 92 ROM
EXIT + MIDI
Keyboard Test: shows key name and velocity and plays a short piano like tone, when you hit a key.
EXIT + COMPARE
D/A Adjust and PCM Test: BANK buttons play PCM sounds for D/A setup.
D/A Adjust and
PCM Wave Test
EXIT + WRITE
LCD Test, All Off: darkens the entire display to make sure no pixels are stuck on.
EXIT + DATA TRANSFER
LCD Test, All On: lights up the entire display to make sure no pixels are stuck off.
EXIT + ENTER
LED Test: Lights each LED one at a time and then lights them all at once. The speed of the test is determined by the VALUE slider. Notice the START LED lights up orange! This is because it is both a red and a green LED in one, when both parts are lit it becomes orange.
EXIT + MULTI TIMBRAL/PERFORMANCE
(D-20 only) Floppy Disk Test
Checking the ROM Version
Product: D-10 D-20
The following procedure can be used to check the ROM version:
Hold down EDIT and DATA TRANSFER while powering up.
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