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Requesting Help With ICS L85A2

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Old September 11th, 2017, 16:06   #1
Ourindar
 
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Requesting Help With ICS L85A2

Hey folks,

I recently got a used L85A2, it shot fine when I got it.
Today, I decided to change the position of the pin that lets you adjust the FPS. It shot fine afterwards but I had a hard time getting it back together.
After failing at getting it back together for a while, I took the gearbox out again, reinserted it, and now the gun won't shoot at all.
I recharged the LiPo it's connected to, but it doesn't seem to be making electrical contact. No sound of gears moving/being stuck or a motor running. Only the click of the trigger.
Of note, there are two little electrical contacts in the upper. I thought I remembered them being flush with one another (I might be misremembering), but one is out of its housing now. It's under spring tension.
Super disappointed, would love some help. It's a beautiful gun, and I hate not having stuff that works.

Thanks in advance.
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Old September 11th, 2017, 19:54   #2
venture
 
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The body of your gun is steel and the motor contacts can come in contact with the steel body and ground out, causing it not to function. Place a bit of tape over your motor connectors and see if that helps.
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Old September 12th, 2017, 19:33   #3
Ourindar
 
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Thanks for your reply.
I've put electrical tape over the motor terminals and replaced the fuse for good measure.
Measuring across the trigger contacts (with the lower off) with a multimeter, I get about 12.5V, so the fuse and battery are good.
I've attached a picture of the trigger contacts on the upper - are they supposed to be like that?
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File Type: jpg IMAG0326.jpg (565.7 KB, 17 views)
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Old September 15th, 2017, 23:16   #4
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It's not. Send some better photos showing the whole upper trigger unit.
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Old September 16th, 2017, 17:26   #5
Ourindar
 
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Thanks for your reply.
Here are some (hopefully) more helpful pictures of the unit. Like I said, I remember them both being flush with one another.

https://imgur.com/a/70bl9
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Old September 16th, 2017, 23:59   #6
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Check to make sure the left tab that's sitting up higher isn't caught on something or missing a spring. Each of those tabs usually pushes down to connect with the lower trigger assembly. Also they have a spade connector that occasionally wobbles loose, check to make sure they are connected properly.
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Old September 17th, 2017, 16:30   #7
Ourindar
 
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Thanks a bunch.
I pulled the trigger contact down and the gun worked... sorta.
It made a really loud, strange noise and smelled like something was burning. When I went to pull the motor contacts to check everything was connected right, one of the wire contacts snapped off. So now I have a solder job on my hands, at best.
Any idea what that might've been?
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Old September 18th, 2017, 12:46   #8
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Where was the wire snapped? Also what did this noise sound like? Try to be descriptive, it's hard to diagnose electrical problems without having eyes on.
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Old September 19th, 2017, 11:18   #9
Ourindar
 
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The part of the wire that snapped was the connector to the motor terminal on the positive end. I don't think that had anything to do with the noise. Just a weak connection to resolder.
The noise was like a high-pitched whine. Was definitely the motor but with extra noise coming from elsewhere.

At this point the problems just keep multiplying and I won't have time to solder any time soon, so I'll probably just have to wait until I get a chance to make the 4-hour trek to my most local tech and throw some money at the issues.
Regardless, I very much appreciate all the help you've given. If it had only been the trigger contacts we would have been great right now. So thanks a lot!
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