Roland R-880 Troubleshooting Guide provides information on problems you may experience when using this unit. Some problems and solutions can be found below.
What’s Wrong with My Unit?
Roland R-880 Troubleshooting Guide
Why don’t hear any signal?
If you can see input signal on the R-880’s front panel display, then your inputs are okay. If not, check your input cables, the effects sends on your console, and the switches on the rear panel of the R-880.
If you see input signal but no output signal, the output mixers in the system software may be off, probably because you changed the algorith on the Joint or Move screens. Remember the software does this automatically. Go to the “OutLvl” screen (SHIFT-FUNC3, FUNC2) and turn up those output mixers you need.
If you see input signal and output signal, then check your output cables and the effects returns on your console.
I hear sound, but nothing is showing up on the input level display.
The input level display only displays signals coming in through the analog inputs, not the digital inputs. If you are only using the digital inputs, you will see no activity on the input display.
The input signal is too strong, or too weak, or the output signal is too weak.
Reduce the input signal using the INPUT level control on the front panel of the R-880. If it is still too strong (and you are using the unbalanced inputs), change the UNIGAIN switch on the rear panel to +4 dBm (out). You can strengthen the input signal by setting the UNIGAIN switch to –20 (in); if you are using the balanced inputs and the signal is too weak, try the unbalanced inputs (with the switch at –20).
If you need to strengthen the output signal, set the UNIGAIN switch to +4, or use the balanced outputs.
The power went off for a moment, and now the system won’t respond.
Whenever you turn off either the R-880 or the GC-8 and turn them on again, you must make sure the System ROM card is in the GC-8 slot, even if the program you were using came from a RAM card. You must also bypass the clock by pressing CANCEL as soon as the display os ready.
I move a control but the sound doesn’t change.
There could be several reasons for this. It’s possible that you are working on a parameter screen of a non-functioning module, or a module whose output is mixed very low. Parameter screens a re always available for most of the modules, even if those modules are not being used in the current algorithm. Or, if you are in the Reverb Algorithm or Joint screen, any changes you make will not be effective until you specifically transmit them, which is done in various ways, depending on the screen.
I’ve been working on a lower screen and I went to the upper screen just to have a look, and now when I go back to the lower scree, all my settings a re gone.
If you really hae gone to the upper screen just “to have a look”, this shouldn’t happen. However, if you change anything on the upper screen, the lower screen will change to its default values (and the software will warn you) – even if you “undo” the changes you make on the upper screen right away.
I constructed a complex algorithm and just wanted to change the reverb type, but now the algorithm is gone.
Any changes made on the Reverb Algorithm screen – Mode, Type, Configuration, or Gates – will result in the algorithm being totally reconstructed. The best way to keep this from getting in your way is to decide in your Reverb Mode parameters before you do any work on the lower (Move and Joint) screens.
I came up with a new program and saved it in a memory location, but that memory location still has the name of the program that used to be in it.
In the R-880/GC-8 software, you name a program after you write it into memory. If the location you have written to was empty, the program will be initially saved with a blank for a name. If there was some other program in there, the old program’s name will be retained until you change it (from the Memory Menu, FUNC3).
Roland R-880 Troubleshooting Guide.pdf is the right guidance you need when you arehaving problems. Various instructions in this troubleshooting guide you can make a referral before you call a qualified technician.