EHX Deluxe Memory Boy faulty - no effected sound

[mike257]

This is one for all you pedal experts - the only expensive pedal I own in amongst my cheap and cheerful board has packed in!

When the pedal is active I still get my clean guitar tone but nothing is coming back through the delay signal - if I turn my blend to 100% wet I get either a load of noise and crackle, or nothing at all.

Had a quick Google and haven't found answers elsewhere as yet, so any suggestions would be greatly appreciated. Can't afford to replace this one!