Stuck thread take up lever

[Embroidery Seychelles]

Hi all, 

I am new to this community. I have a problem with my Brother PR620 with the thread take up lever getting stuck in  a downward position, a whining sound and a motor lock message. Has anyone come across this problem before? Is there a simple solution or do I have to send my machine to a service centre? I am based in the Seychelles and the nearest service centre is in the UAE or South Africa. I have uploaded a video. If anyone could help I would be very grateful. Jude Bijoux, Golden Threads Embroidery, Seychelles. 

[Erik Hrast]

Hello... I own same machine. I had similar problem... in my case machine blocked completely. No motor movement at all and same error.
I open it and went step by step. I check all movement parts, sensors,... and I fount blocked wheely on the bottom. But this was my case. 

Remove all covers and observe movement, where the sound come from.. it took me all day to found the mistake. Take your time
When you run it without covers make sure that you protect sensors from direct light, because it could stop the machine during testing.

[Embroidery Seychelles]

Thank you Erik. I'm just back home now after a week away. I will take your advice, remove the cover and try to diagnose where the sound is coming from. I hope that it is the same fault as your and I can easily remedy the situation. I will keep you and the group posted as I am sure that the information will be useful to other users.