How to Repair a Loose Jack on a Les Paul Epiphone | Our This will tighten the jack plate in place on the guitar. Loose Nut. Shake the jack socket slightly. If the jack plate is held securely but the jack socket is loose, then the nut holding the jack socket down is the issue. Unscrew all four screws that hold the jack plate to the Epiphone Les Paul to remove the jack plate. epiphone input jack | eBay Find great deals on eBay for epiphone input jack. Shop with confidence. Skip to main content. eBay Logo: EPIPHONE LES PAUL GUITAR Custom Square. Brand New. $14. Buy It Now 2014 Epiphone Les Paul Trad Pro Wiring Harness Push Pull Pots Jack Switch w/ HW. Pre-Owned. $34. Buy It Now.