The thing is, sometimes a bad component can trigger a chain of errors which is what I think is happening here but, I'm no expert.
#ROLAND SOUND CANVAS SC88 PRO MANUAL#
I did some of the tests from the Service Manual and got several errors with the "Memory Test", I'm attaching a screenshot of what the manual says it's wrong, it matches exactly with what is reported on the screen. Midi inputs get the signal but, that's when audio gets bad, same if I press the Preview button.ĭisplay and buttons have no problems at all. Also, I did a test with the line-in and the sound is correct, no problems there. In the "analog" or secondary board, the (Japanese) electrolytic caps look in great shape, no swollen or leakage. I tested some voltages that go to the main board and got these values: (DC) 4.9v, 3.6v, 2.48v, 0.9v, some numbers look really odd but I don't know.
If the voltages are all wrong, that probably damaged some chips, right? I guess replacing the transformer would be too late. With the cable connected to the main board:Įither way, theses numbers are all wrong, correct? am I missing something? I don't see any signs of heat damage or leakage (except the caps I mentioned from the Main board), everything looks good, no funny smells, etc. These sound include the same sounds as the SC-55/55mkII and SC-88, allowing SC-55/55mkII and SC-88 song data to be played back correctly. (p.120) This unit contains 1117 high quality sounds and 42 types of drum sound set (including 3 sound effects sets). With the cable disconnected from the main board: It is an ideal sound module for use with sequencers or personal computers. My readings with a Fluke multimeter: (AC) I did two tests, one with the transformer on it's own, cable disconnected from the Main board, and the second with the cable connected. I got the Service Manual and compared the voltages from the transformer, there are 5 output pins as you can see in the picture. level connectivity is quite comprehensive, two among MIDI (1 thru.
sounds not REALLY ditables, top it acts by modifying the envelope, filters and effects. I replaced them (8) with spare ones I got from Digikey, nicely done, no traces lifted whatsoever and used the same values of course but, that didn't fix the problem. Published on 03/22/08 at 13:06 (This content has been automatically translated from French) A small expander with about 1000 sonorits stored in a. So, I opened it up and noticed that in the main board, some of the Alum/Poly (smd) caps leaked, not a lot but they did. A few days ago I wanted to use it again and now the sound it's completely distorted, it's like a big crackly sound (I'm attaching a sample using the sound preview button: one short press, one long and another short at the end). Played with it for a couple of months and it worked as expected. Seashore ( Roland Sound Canvas SC-88VL ) video upload by Avrilcadabra 'I made this track in the spirit of Streets of Rage using the SC-88VL This is all sounds from the Roland SC88VL which is being sequenced by the Dirtywave M8. A couple of years ago I got a Roland (Sound Canvas) SC-88 Pro, 120v version, it was like new, manual, original box, everything was great, not a scratch. I know what I'm asking here is not easy to answer but, here I go anyway.