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PTW: convert from burst to auto and vice versa

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Old September 22nd, 2007, 01:22   #1
WarChild7
 
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PTW: convert from burst to auto and vice versa

Perhaps some of you know this, but maybe not. I figured I'd pass on this little trick to all the Systema PTW owners out there.

All PTW's can be either full auto or burst. They all have the capability to do both, regardless of which way you bought it.

If you have a burst gun and want full auto, or have an auto gun and want burst, just do this:

The main circuit board in the gun, EL-001, which is the longer one of the two sitting just forward of the gearbox, has three marked dual-solder points on it: P1, P2 and P3.

P1 is the key here.

If the two P1 solder joints are soldered together, you have burst.

If the two P1 solder joints are separate, you have full auto.

So, if you bought an auto gun and want burst, solder P1 together. If you have burst and want auto, use solder wick or a solder-sucker to seperate the P1 connection.

Enjoy!

P.S. If you have good soldering skills, an even better way to do the mod, and be able to switch between both modes is one of two ways:

1) solder a PC motherboard jumper and jumper pin socket onto P1. remove jumper for auto. put jumper on for burst. Nice!

2) solder two thin wires to each of the P1 connections and connect to a small toggle switch which you locate either in the lower receiver below the stock tube and above the handgrip, or in the stock tube itself. Flip switch to switch between modes.
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Last edited by WarChild7; September 22nd, 2007 at 01:39..
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Old September 22nd, 2007, 02:04   #2
LUTNIT
 
Join Date: Dec 2005
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Copied, pasted, and saved. Thanks, was going to ask this myself when my PTW came in but now I'm good. Even bought a couple tiny switches for this mod a couple weeks back when I first heard it was possible.
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Old September 22nd, 2007, 02:15   #3
Mantelope
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These pictures might help: http://www.systema-ptw.com/forum/for...ID=97&KW=burst
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Old September 22nd, 2007, 02:18   #4
mcguyver
 
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And the best part is, you can do this without any disassembly to the gun. You can pull out the main circuit board (the one you see when you split open the receivers) simply by pulling straight up on it. You can see the P1 contact points at the bottom of the larger board and can solder them without diconnecting the boards from the gun in a couple of seconds. Just make sure that the battery is disconnected before you do this.

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Last edited by mcguyver; September 22nd, 2007 at 02:42..
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Old September 23rd, 2007, 03:38   #5
WarHawk109
 
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Humph

when i try to take the circut board out it's blocked by the bolt-catch...
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Old September 23rd, 2007, 03:47   #6
mcguyver
 
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Quote:
Originally Posted by WarHawk109 View Post
Humph

when i try to take the circut board out it's blocked by the bolt-catch...
Yes, just pop out the pin and remove it.
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Old March 10th, 2009, 09:36   #7
Citabria
 
Join Date: Mar 2009
Location: Switzerland
New Version

Thats great, thank you.

But with the newer version (4 cables between EL-001 and EL-003) the CPU Board (EL-001) changed and i didn't found any solution yet to convert auto/burst.

Help would be very much appreciated.
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Old March 10th, 2009, 11:54   #8
Nova316
 
Join Date: Nov 2006
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Check out the link that was posted earlier theres an update to tell u how to do the New boards.

U just need to solder the second connection from the bottom and make it a short

http://www.systema-ptw.com/forum/for...ID=97&KW=burst
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