Hi. I bought a used DSL20CR and it worked great for about 4 days! Now it's making an awful sound like ur holding the end of your guitar cord when you turn the standby on the amp on. It's doing this w/nothing plugged in but the speaker. Is this a problem I can easily fix,(I know about Caps.) Or, do I need to get it to my local Marshall Service Center? I've tried to include an audio and video recording below but they wouldn't download.
Thank you for any help!
Thank you for any help!
