hi hope someone can help me i have a boss syb 3 when switched on it works fine when switched off nothing comes out i have someone to repair it but he needs schematic to work it out due to being double sided circuit board any help or advice would be greatly appreciated thanks for looking tone
I haven't seen a SYB-3 schematic anywhere on the Internet so it might be difficult to find. Roland can provide it if you're not able to track one down.