RC looper and DR880 syncing.

Only 6 wires are used by the amp. Tie the brown wire to the metal frame to act as shielding if anything. You will probably find that the brown wire either connects to the shell of the connector or to nothing.

OFTEN Roland has the opposite sense of normally closed contacts versus normally open. Test the switch with any continuity tester or an ohmmeter to see that the contacts work and come out to the switch. ALSO some amps require a TRS type connection (three wire plug) and others do not. From the schematic it appears that the Laney may REQUIRE a normally closed contact. There is also a pull switch involved that you MAY have to change the state of for operation of the pedal.

Here is the scheamtic for your amp:

http://elektrotanya.com/laney_aor100h_sch.jpg/download.html

Scroll down to the link at the page "Get Manual" and click to download. It is a JPG type file.

Here's a hunch:
When the RC-50 was hooked up, your computer had access to the internal memory. The WAVE directory is where the wave data is stored. The RC-50 must have noticed that the wave data for patches that were supposed to have data was in fact gone.

So, you can probably just do a factory reset:
With the power off, while holding both single/multi and loop-sync, power the RC-50 up until it greets you with SYSTEM/PATCH use the PARAMETER buttons to go back and forth. In your case, you can probably leave "SYSTEM" alone and just select PATCH. Once you've selected which section of the RC-50 you want to reset, hit the WRITE button.

Hi I just got a RC 50 and I face the same problem but looking the content of the data in the Roland folder (after you connect the USB) , I notice the format of the label of each sound's and I understood the problem. So , here it is . Before you connect to USB , you have to choose a patch , let say n.16 OK, now the audio file that you want to import into the data folder must be named in this way "016_1.WAV" ,the 16 refer to the patch number and 1 is the phrase number (if you want to put the audio file into the phrase 1 ,or 2 if 2 ecc.) now disconnect the USB .At this point you just have to increase or decrease the patch number just one time and go back to 16 (it has to refresh the patch info) and you'll find your audio file ready to use in whatever phrase you put it.
have fun
Paolo

First, you need to select one of the patches called "init patch", it won't have a drumbeat on it. Then, turn the guide on again, then all the way off. Even if the knob's in the off position when you go to the patch, it'll turn itself on again by default. There's a light there that says "beat quantize" that you want to be off, or it'll cut your loop to the length of whatever beat it's set to. If you want to change the default, turn the beat quantize off, then press "write" and write the new patch. Hope that helps.