英国采购需求：教堂 LED 墙、舞台 LED 显示屏、LED 屏幕、彩色 LED 显示屏、活动 LED 显示屏、LED 教堂屏幕

I'm working on a project for Popeyes Louisiana Chicken, specifically taking over the maintenance of their Fixed Outdoor LED Totem. Unfortunately, we're noticing some discolouration across several areas of the screen. We have an exploratory maintenance session scheduled soon, but anticipate needing replacement parts for a proper fix. Could you provide guidance on the best approach to tackle this issue? Additionally, I'd appreciate if you could share the lead times for the necessary parts so we can plan accordingly. Thanks!