Roland rs-101 repair


A few months ago i purchased a roland string synth on eBay… It has arrived from Japan but isn’t working despite being fully refurbished by the seller. The synth powers up and the light comes on but when a key is pressed I only get white noise. I will attach a sample of the sound. I have taken it apart and looked inside to check for cracked circuit boards or loose connections and have checked the fuses but i can’t see anything that could be causing the problem… I am at a loss with this synth so would really appreciate any help or advice as to what the problem may be…

Many thanks


Link to the noise it makes-Stream Rs101 Noise by Herb Lazonby | Listen online for free on SoundCloud