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Sergey_new_pcb
15:16:13 Sat
May 8 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

This board is ready for the trip to Florida:
http://www.youtube.com/watch?v=AAWwaXPeQR0

This one is for Windage:
http://www.youtube.com/watch?v=kjeMbEOJhpw

This one is going to LA LA land :biggrin:
http://www.youtube.com/watch?v=VvfH1ZrOJZ4

All boards are tested and packed. I'll send them out on monday.

  
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drozdandconfused
21:48:11 Fri
May 7 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Is that LA as in Louisiana or LA LA Land:rotflmao:

  
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Sergey_new_pcb
17:42:43 Fri
May 7 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Received the money from Florida and LA. Boards are 80-90% ready. Will answer the questions by e-mail later.
Working...

  
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windage
17:32:15 Fri
May 7 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Quote: SONYtec at 15:05:34 Fri May 7 2010

Quote: rkr at 05:26:42 Fri May 7 2010

Quote: windage at 04:55:51 Thu May 6 2010

Quote: green_dots at 21:24:30 Wed May 5 2010

Greetings all. Update. More testing today. The higher fps has returned with the new gasket. All co2 testing was great.The hpa testing also went well but some small problemws with connections..With the hpa tank at 1000psi,it showed 625fps.I could get the chrony to show a reading on full auto but did get a reading on burst fire of 750fps when the hpa tank was showing 1500psi. Through all the tests today with a lot of no reading,the gun was very loud and did not skip a beat.In all the board worked very well and is a huge improvement. GD.


You can try that but when I did that, I had inconsistant readings. It was not until I placed a light fixture over each end of the chrony, before I was able to get consistant readings.


You may already know this.
If your shooting indoors with your chrony, you need a light kit.
I built my own for about 5 dollars worth of material.


Any tips for building the light kit? I just ordered me a chrony without lighting fixture.


if you are indoors, just place a regular light above the chrony. You don't need anything fancy.

  
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SONYtec
15:05:34 Fri
May 7 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Quote: rkr at 05:26:42 Fri May 7 2010

Quote: windage at 04:55:51 Thu May 6 2010

Quote: green_dots at 21:24:30 Wed May 5 2010

Greetings all. Update. More testing today. The higher fps has returned with the new gasket. All co2 testing was great.The hpa testing also went well but some small problemws with connections..With the hpa tank at 1000psi,it showed 625fps.I could get the chrony to show a reading on full auto but did get a reading on burst fire of 750fps when the hpa tank was showing 1500psi. Through all the tests today with a lot of no reading,the gun was very loud and did not skip a beat.In all the board worked very well and is a huge improvement. GD.



You may already know this.
If your shooting indoors with your chrony, you need a light kit.
I built my own for about 5 dollars worth of material.


Any tips for building the light kit? I just ordered me a chrony without lighting fixture.


if you are indoors, just place a regular light above the chrony. You don't need anything fancy.



---
10/02/08 Black '05 Drozd STOCK.
3/13/08 YELLOW '03 DROZD, 9/17/08 full auto mod, 1, 3, Full. ROF mod soon.
07/07 Black '05 Drozd, 8/3/07 resistor mod, 9/20/07 full auto PCB. More to come! (Adjust pot. and solenoid)
Accessories: 8/24/07 PMI HPA tank, remote hose, 9/03/08 JimC barrels and QD adaptors, 10/01/08 JimC CAR stock adaptor. NEED HI-CAP MAGS!!!
 
 
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rkr
05:26:42 Fri
May 7 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Quote: windage at 04:55:51 Thu May 6 2010

Quote: green_dots at 21:24:30 Wed May 5 2010

Greetings all. Update. More testing today. The higher fps has returned with the new gasket. All co2 testing was great.The hpa testing also went well but some small problemws with connections..With the hpa tank at 1000psi,it showed 625fps.I could get the chrony to show a reading on full auto but did get a reading on burst fire of 750fps when the hpa tank was showing 1500psi. Through all the tests today with a lot of no reading,the gun was very loud and did not skip a beat.In all the board worked very well and is a huge improvement. GD.



You may already know this.
If your shooting indoors with your chrony, you need a light kit.
I built my own for about 5 dollars worth of material.


Any tips for building the light kit? I just ordered me a chrony without lighting fixture.

  
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windage
03:46:51 Fri
May 7 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Great news! Sergey has offered to replace my board with a new one! I am very happy with this offer and I am very impressed with Sergey and his friendly attitude towards the customer.
It turns out that the board would be very difficult for me to repair, especially the second button which is surface mounted to the board. My attempt to replace the button switch would have probably made the board in worse shape then it is right now, lol. It was somewhat interesting to do some troubleshooting and it gave me an excuse to dust off my old electronic repair equipment.
While I wait, I am going to order myself some decent rechargeable batteries and make sure my air tanks are full and ready for testing when the new board gets here.

  
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Sergey_new_pcb
05:50:10 Thu
May 6 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Windage, thanks for these figures. Almost everything is clear now. I'm sending you an e-mail with the repair ideas.

  
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windage
04:55:51 Thu
May 6 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Quote: green_dots at 21:24:30 Wed May 5 2010

Greetings all. Update. More testing today. The higher fps has returned with the new gasket. All co2 testing was great.The hpa testing also went well but some small problemws with connections..With the hpa tank at 1000psi,it showed 625fps.I could get the chrony to show a reading on full auto but did get a reading on burst fire of 750fps when the hpa tank was showing 1500psi. Through all the tests today with a lot of no reading,the gun was very loud and did not skip a beat.In all the board worked very well and is a huge improvement. GD.



You may already know this.
If your shooting indoors with your chrony, you need a light kit.
I built my own for about 5 dollars worth of material.

  
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windage
04:44:54 Thu
May 6 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Results:
R1 - + = 0.1 Ohms + - = 0.1 Ohms
R2 - + = 49.5 + - = 49.5
R3 - + = 5.5 K + - = 5.9 K
R4 - + = 0.2 + - = 0.2

V1 = 10.2 V
V2 = 1.39 V

Obviously, V2 is not supposed to be at 1.39 Volts, too low for logic ccts.
Should be either 3 or 5 volts I believe, depending on the microprocessor. I am taking a guess of course, lol and I could be wrong.

Tested from left to right the tactile buttons. TB1 when pressed went to 0 ohms. Same with TB3. TB2 did not go to 0 ohms and stayed open at infinite ohms. I pressed the button like 200 times to try and clean out the oxidation with no change in results.

Hope this helps.
[1 edits; Last edit by windage at 04:52:41 Thu May 6 2010]

  
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SONYtec
02:42:40 Thu
May 6 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Sounds great GD! What voltage were you using?

CO2 is bad for seals and gaskets, freezing them and cracking. Thats one of the reasons HPA is better.

I wonder if the Chrony has a delay time, to be able to read multiple shots. Causing you to not get a reading.



---
10/02/08 Black '05 Drozd STOCK.
3/13/08 YELLOW '03 DROZD, 9/17/08 full auto mod, 1, 3, Full. ROF mod soon.
07/07 Black '05 Drozd, 8/3/07 resistor mod, 9/20/07 full auto PCB. More to come! (Adjust pot. and solenoid)
Accessories: 8/24/07 PMI HPA tank, remote hose, 9/03/08 JimC barrels and QD adaptors, 10/01/08 JimC CAR stock adaptor. NEED HI-CAP MAGS!!!
 
 
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green_dots
21:24:30 Wed
May 5 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Greetings all. Update. More testing today. The higher fps has returned with the new gasket. All co2 testing was great.The hpa testing also went well but some small problemws with connections..With the hpa tank at 1000psi,it showed 625fps.I could get the chrony to show a reading on full auto but did get a reading on burst fire of 750fps when the hpa tank was showing 1500psi. Through all the tests today with a lot of no reading,the gun was very loud and did not skip a beat.In all the board worked very well and is a huge improvement. GD.

  
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SONYtec
16:28:19 Wed
May 5 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

WOW windage, that looks AWESOME!!! Looks like factory.

Sorry to here that you are having trouble with the board, Sergery will get you all fixed up.
[1 edits; Last edit by SONYtec at 16:29:28 Wed May 5 2010]



---
10/02/08 Black '05 Drozd STOCK.
3/13/08 YELLOW '03 DROZD, 9/17/08 full auto mod, 1, 3, Full. ROF mod soon.
07/07 Black '05 Drozd, 8/3/07 resistor mod, 9/20/07 full auto PCB. More to come! (Adjust pot. and solenoid)
Accessories: 8/24/07 PMI HPA tank, remote hose, 9/03/08 JimC barrels and QD adaptors, 10/01/08 JimC CAR stock adaptor. NEED HI-CAP MAGS!!!
 
 
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windage
14:24:28 Wed
May 5 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Quote: drozdandconfused at 07:44:36 Wed May 5 2010

Nice clean job on the install. What did you cut the window with a dremel?


Yes, I used a dremel tool, some sand paper and a drill with a very small drill bit. The window is a perfect square and the plexiglass was very easy to cut as a square. I am also using another bigger piece of plexiglass that will be glued on the inside of the gun. The 2 pieces are then being sandwiched together and the very small gap around the window will be filled with black epoxy to make the final finishing touches.

  
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Sergey_new_pcb
08:01:12 Wed
May 5 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Hello Windage.

Thanks for posting the photographs. Believe me, I'm the guy who wants to get your board back to work more than anybody else. Please do exactly what I ask you to do in order to fix it as soon as possible.

1. Disconnect the solenoid and insulate the wires that were soldered to it.

2. Measure the resistance across the diode in both polarities (R1 at the photo above).
3. Measure the resistances marked R2, R3 and R4 in both polarities as well.


4. Apply 10...15 V to the board and measure the voltages V1 and V2 (central pin is negative).

This is very important. When I know these values I'll tell you what parts failed and how it can be fixed.
[1 edits; Last edit by Sergey_new_pcb at 08:04:01 Wed May 5 2010]

  
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drozdandconfused
07:44:36 Wed
May 5 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Nice clean job on the install. What did you cut the window with a dremel?

  
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windage
06:50:49 Wed
May 5 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Sorry, the forum wouldn't let my post my 4th image.



  
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windage
06:47:02 Wed
May 5 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Time for an update:




I haven't put in the plexiglass window but it is cut and ready to be fixed in place.


Troubleshooting:

I did some testing tonight. The cap on the backside has a resistance of 77.2K ohm. The Voltage regulator output measures the same as the input. My lithium batteries are providing 10.10 volts. On the input side (pins 1 & 2) measure 10.10 volts. The output side (pins 2 & 3) measure 10.10 volts. I believe pin 1 is on the left side of the chip as shown in this image.



I was wrong about the location of the trace being broken. I was very tired and couldn't think straight. It was beside the (I believe is a diode) as shown in this image with a red line. As you can see in the image, I have recreated the trace with a line of solder. I think if I can recall, the diode measures 0 ohm's and I am thinking it might the part that could be burnt.




I resoldered all 4 contact points at the center microswitch button and retested and it still doesn't work. The left and far right buttons still work. I am not sure if the switch is broken or not. Is there any way of bypassing the switching and seeing if it at least responds? If I have to replace that microswitch, I will also have to remove the big Capacitor as well since there isn't much room in there.



[ Too Many Images In Post; Maximum 3 ]









  
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SONYtec
03:30:59 Wed
May 5 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Awesome GD!!!!

Everyone has to remember to change batteries first when having trouble.

The guns use lots of current for the soleniod. Even more when the gun is hot rodded!



---
10/02/08 Black '05 Drozd STOCK.
3/13/08 YELLOW '03 DROZD, 9/17/08 full auto mod, 1, 3, Full. ROF mod soon.
07/07 Black '05 Drozd, 8/3/07 resistor mod, 9/20/07 full auto PCB. More to come! (Adjust pot. and solenoid)
Accessories: 8/24/07 PMI HPA tank, remote hose, 9/03/08 JimC barrels and QD adaptors, 10/01/08 JimC CAR stock adaptor. NEED HI-CAP MAGS!!!
 
 
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green_dots
01:29:09 Wed
May 5 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Welcome Mwray.Go back to the srart of this post and you will see an e mail for Sergey.

  
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mwray
22:09:48 Tue
May 4 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

I need info on ordering Sergey's board. This is my first time ever on a board so please forgive me if i'm working this thing correctly.

  
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green_dots
20:26:33 Tue
May 4 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Hello all. Update. It is a slow progress with the new board. I work for 20 miutes and I am soaking wet with sweat and have to take a 1 hour break But there is progress. I got the board installed and the switch holes drilled. I drilled very small little holes and with some carefull measurements,they were prefect. The switches themselves work perfect. I use a 3/32 drill bit. I use smooth shaft end to press the switches. I then put the board through it's paces with no co2 or bbs.It worked perfect. Using 9 volts and hooking up the co2,I then shot the gun through the chrony single shot.I got 450fps. Normally I get 440-460 fps with the old board. I had a hell of time getting the chrony to work. My gun with the old board is set up for high Hpa and shoots a little slower than a stock Drozd. I fried a few 3-5 shot bursts and couldn't get a reading but the gun sounded good. I then switch batteries to 21.6 volts and nooked up the Hpa (1600+psi) and started testing single shot and small bursts. That when the trouble started. The gun was only shooting 175-250fps. The next 4 hours were murder. I tried everything (moving the selenoid,different combos of batteries),nothing worked. I then had an idea. I took out 6 brand new 3.6 volt AAs. A miriacle occured. The first shot nearly ripped the gun from my hands and my ears started to ring. The chrony said 705fps. No more fading on burst fire. It was THE BATTERIES. All my old batteries are NO GOOD. During all this testing I had replaced the Zaitsev gasket with a stock gasket. When I recover my strength tommorrow I will replace the stock gasket with the Zaitsev gasket and I should return to my old reading with the stock board of 760-780fps. So far everything as worked very well and I am pleased with the new board. More testing tommorrow,health permitting. GD. PS this is with my stock barrel.
[1 edits; Last edit by green_dots at 20:44:53 Tue May 4 2010]

  
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windage
18:46:37 Tue
May 4 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Quote: Sergey_new_pcb at 18:08:47 Tue May 4 2010

Quote:

to remove the clear protective coating that covers the board
It's acetone-based varnish so it can be removed with acetone or similar solvents. Please be careful, don't let it get inside the buttons and connectors.

Quote:

The lead acid battery is rated 2.0 A hour at 13.8v. My lithium batteries provide 2800 mah, which is equals 2.8 A hour.
These figures are not applicable in this case -- there is significant difference between battery's capacity (expressed in Ampere*hours) and supplied current (measured in Amperes). For example, a 2 Ah battery can supply 20 A current. I'll explain later why it's important.

Ya, I realize the supplied current is different but the internal resistance of the board should still limit the amount of current going through the board. I am just concerned for people like GD who are using power tool battery packs for their guns.

Quote:

fault protection on this board
This board consists of multiple parts. The DC-DC converter has overcurrent protection. So does the voltage regulator that feeds the microprocessor. But it doesn't make any sense to have a fuse in the primary circuit (batteries, capacitor, solenoid). I hope you remember one of my previous posts about measuring batteries voltage where I was talking about Drozd's peculiarities. This gun is a very specific device and its peak current consumption within some milliseconds can be as high as 20 Amp

[ Continued ]
View Rest Of Post
[1 edits; Last edit by windage at 18:50:26 Tue May 4 2010]

  
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Sergey_new_pcb
18:08:47 Tue
May 4 2010

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Quote:

to remove the clear protective coating that covers the board
It's acetone-based varnish so it can be removed with acetone or similar solvents. Please be careful, don't let it get inside the buttons and connectors.

Quote:

The lead acid battery is rated 2.0 A hour at 13.8v. My lithium batteries provide 2800 mah, which is equals 2.8 A hour.
These figures are not applicable in this case -- there is significant difference between battery's capacity (expressed in Ampere*hours) and supplied current (measured in Amperes). For example, a 2 Ah battery can supply 20 A current. I'll explain later why it's important.

Quote:

fault protection on this board
This board consists of multiple parts. The DC-DC converter has overcurrent protection. So does the voltage regulator that feeds the microprocessor. But it doesn't make any sense to have a fuse in the primary circuit (batteries, capacitor, solenoid). I hope you remember one of my previous posts about measuring batteries voltage where I was talking about Drozd's peculiarities. This gun is a very specific device and its peak current consumption within some milliseconds can be as high as 20 Amperes or so. A fuse would blow up and that's why there is no fuse even at the original board. The new board can withstand the voltage applied in reverse polarity for a short time. In such a case it just won't work, just check the batteries (including polarity) if it happens.

Quote:

Shouldn't I be able to connect to any power source

[ Continued ]
View Rest Of Post
[1 edits; Last edit by Sergey_new_pcb at 18:14:00 Tue May 4 2010]

  
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drozdandconfused
16:58:58 Tue
May 4 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

windage, this company makes all kinds of electrical coating/cleaners, etc. you can get it at major (specialty) electronics stores (not radio shack)

http://www.mgchemicals.com/products/8260.html

I hope you can fix it!
[1 edits; Last edit by drozdandconfused at 17:00:18 Tue May 4 2010]

  
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windage
16:15:22 Tue
May 4 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

What is the best way to remove the clear protective coating that covers the board? I can scrape it off but I don't want to wreck the components by scratching. Does rubbing alcohol remove this coating safely?
I also cannot read the capacitor value. It looks like it might be a surface mount capacitor. I am still at work so I cannot do any testing until late afternoon.
I am also wandering about fault protection on this board. I am still confused as to why I burnt a component. The lead acid battery is rated 2.0 A hour at 13.8v. My lithium batteries provide 2800 mah, which is equals 2.8 A hour. Shouldn't I be able to connect to any power source up to 24 volts without worring? Is there any fault protection against having the power supply terminals reversed? Not that I did this, but putting the batteries in the compartment backwards can easily happen and I don't think the factory board would be effected if this occured. I could be wrong cause I never actually tested this theory.
I did notice last night after I posted, that the little copper trace (acting like a fuse) on the positive side before the capacitor, had broke. I fixed the trace but there is still a good chance the capacitor is burnt. I will test some values tonight. I cannot see any burn marks on any of the components or on the board itself.
Sergey, I think it would be best if we can take this offline and continue communicating through email. I will keep everyone posted on our progress afterwards.

Thanks

  
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Sergey_new_pcb
07:08:30 Tue
May 4 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Hello Windage.

I'm sorry for that incident, let me assure you we'll find out what went wrong and fix your board soon. That's great you're familiar with electronics because I'd like to you to check some parameters of the board to find the failed part on it.

Quote:

The 2nd button worked for a couple of presses, displaying the burst rate and then it quit.

Yes, I've already had one complaint about it before. The problem is with the button terminals. They looked OK but proved to be slightly oxidated. All you need to do is re-solder these terminals again. The bad thing is that those buttons look just perfect and this micro-oxidation is not easy to diagnose. You saw the video with them working perfectly. The good thing is that I've sold 18 boards in Russia and a few more abroad and only two buttons failed like this. It can be fixed in just a few minutes.

Quote:

POP with a puff of smoke

Where exactly did the smoke appear? Does any component get hot or look burned?

Quote:

LED display is now very dim

It means that the output voltage of the LM2931AZ-5 chip is too low. This can happen due to various reasons.

1. Please check the voltage between the 2nd and the 3rd pins of the DC-DC converter (pin 1 is near the converter board corner).

2. Check the resistance across the small rectangular capacitor at the bottom side of the board. Connect positive probe of the ohm-meter to the terminal marked with the stripe, the negative one -- to another terminal soldered to the wide trace at the board.

Based on these measurements result's we'll de

[ Continued ]
View Rest Of Post
[1 edits; Last edit by Sergey_new_pcb at 07:10:46 Tue May 4 2010]

  
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windage
05:28:40 Tue
May 4 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

I had some great progess and some not so great progress. I am not sure how Sergey will take this.
My install went well and I got the window cut out tonight. I fitted the board and I turned it on. Everything seemed to work fine for a bit. The first button works well and increments the burst rate the way it should. The 3rd button works well as intended. The 2nd button worked for a couple of presses, displaying the burst rate and then it quit. I got up to 800 rpm and then the display disappeared. I couldn't get it to work. So I pulled the board out and I had a lead acid 12v battery spare beside me. I hooked it up to the proper leads and then POP with a puff of smoke. :sad: The leads on the board are labeled so I didn't get it backwards. I put the board back in and it still kind of works. The LED display is now very dim but if I shut all the lights off and make the room dark, I can still make out what the settings are. The settings besides button 2 works as like before. The power indicator lights up sill blue.

I believe the 2nd button switch is no good and I could probably easily test for that and I also think the chip that powers the LED display is burnt. I have good soldering skills and an electronics background so I think Sergey and myself could probably somehow fix this. Or I might just send this back to him, lol.

So my actual airgun testing of this board is now officially put on hold. :rotflmao: Hopefully GD can give us a good review.


  
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SONYtec
03:10:17 Tue
May 4 2010

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Sounds great! Can't wait to see your install and operating report!



---
10/02/08 Black '05 Drozd STOCK.
3/13/08 YELLOW '03 DROZD, 9/17/08 full auto mod, 1, 3, Full. ROF mod soon.
07/07 Black '05 Drozd, 8/3/07 resistor mod, 9/20/07 full auto PCB. More to come! (Adjust pot. and solenoid)
Accessories: 8/24/07 PMI HPA tank, remote hose, 9/03/08 JimC barrels and QD adaptors, 10/01/08 JimC CAR stock adaptor. NEED HI-CAP MAGS!!!
 
 
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drozdandconfused
07:31:02 Mon
May 3 2010

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728 posts
BBMG General ****


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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

Great info windage. Lots of good ideas. Can't wait to see the photos.

  
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windage
06:04:06 Mon
May 3 2010

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280 posts
BBMG Major General **

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Re: New electronics for Drozd (9-24V, 300-1200 RPM, 3-15 mS digital pulse adjust

I have done the buttons and I could have done the window but I am not completely sure how I will finish the window, so I didn't do it yet.
The buttons worked out perfect.

My advice to everyone who bought this board and I think it is the easiest, is to find an old remote control and use the buttons from it. You can cut out the buttons with sissors and they already come with a hard stem that contacts the switches on the board just perfectly. When cutting the rubber around the buttons, leave some rubber around the button to allow you to use it for a glueing surface on the inside of the gun. There was enough room between the switches on the board and the inside wall of the gun to allow the rubber to glue there. MAKE SURE YOUR BOARD IS SECURE AND WON'T MOVE WHEN PLACED INSIDE THE GUN. I used a thick 1 sided tape to secure the board inside the gun. You don't want the board to move while creating your template. Once you have the button, you can get the exact drill bit size by comparing from the back of the button. I made a template from a piece of cardboard. I recommend you use a template. It is almost impossible to drill the 3 buttons in a straight line without a template. Use a good crazy glue for the buttons and be patient. Be careful with the glue because if you get a drop on the outside surface of the gun, it will be there permanently. The rubber and the hard black plastic of the gun don't bond instantly though. You have to hold it there for at least 10 minutes and I left the whole thing dry over night. Pushing the buttons puts alot of pressure on the glue bond, so make sure it is well cured. Once I had my template lined up on the outside of the gun, I used a tiny pointy punch to make an indent in the plastic so my drill bit doesn't slip while drilling.
When drilling, I used the smallest bit I could find. Create 3 small holes and then use another bigger bit to recreate the holes and then finally use the final sized bit.
Take your time and I am sure

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[1 edits; Last edit by windage at 14:51:27 Mon May 3 2010]

  
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