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Treasure Hunting & Metal Detecting Forum Message Boards - Detector Hunter Whites Minelab Tesoro XP > Tech Talk > Metal Detectors > PI Designs & Deepseekers (Moderators: Eugene52, Cornelius) >

Help With Delta Pulse Problem

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viswanathmarachi Topic starter

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	Help With Delta Pulse Problem « on: May 08, 2012, 07:14:39 am »

Hi,

Hi Everyone,

I made my DP2 as per the instructions of a turkish blog

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http://felezyab.persianblog.ir

. I have done the assembly of components as in the Component placement diagram. But my DP does not make any sound or anything. When I connected it for the first time to the battery the IRF740 (in fact i used IRF840) smoked. Then I replaced it with a new one. But now there is no response at all from the circuit board.

Probably I burnt something else also along with the IRF840, but with my poor electronics knowledge I am not able to figure out what else would have been burnt.

Another problem i have on my machine is when connected to battery both LED's will glow in fact red is more brighter.... what went wrong here???

Your kind help is much appreciated.

-Viswanath

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japanese

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GARY PI

	Re: Help With Delta Pulse Problem « Reply #1 on: May 08, 2012, 08:14:17 am »

Hi viswanathmarachi
For the heated IRF 840 change UA 556 , adj PR1 to low - ---- FOR two led light ,,, check each of the T10,VD15,,,,,,,,,, IN GENERAL Check all T ,VD

best time
j.

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viswanathmarachi Topic starter

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	Re: Help With Delta Pulse Problem « Reply #2 on: May 08, 2012, 08:23:51 am »

Hi Japanese,

Thank you for your quick and kind reply. I will check everything as per your instruction. Any guesses on why I am not getting any sound on my machine?

Thanks in advance
-Viswanath

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japanese

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	Re: Help With Delta Pulse Problem « Reply #3 on: May 11, 2012, 08:23:14 am »

Hi viswanathmarachi

For the led vd 17 will be lights always because they power, for the LED vd16 lights up when the battery consumption or low ------ As for not hearing the sound is the final outcome because everything properly OK - start a test every transistor and Legs and confirmation of welded well - check the tracks copper and make sure quality , as well as the lack or bad of any connection between the wrong track or welders or short.

1-For the heated IRF 840 change irf840, UA 556
2-FOR vd16 led light ,,, check each of the T10,VD15.
3-for sound check T9 (Order of Legs EBC)
4- check the bad tracks copper .
5-check vol =100 ohm or 1k &tracks copper to vol
6-IN GENERAL Check all T ,VD
7-check DA6=TLO61.

After all this has to be a mistake in the installation as possible to be in the polarity of components or installed Instead of component you place . examine each component in terms of value and polarity and the direction order of Legs EBC and arrangement of the parties.

And I waiting result

best time

j.

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viswanathmarachi Topic starter

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	Re: Help With Delta Pulse Problem « Reply #4 on: May 17, 2012, 01:45:01 am »

Hi Japanese,

Thanks again for your kind reply. I will check everything as per your advice and see if I am lucky enough to get my DP working..

-Viswanath

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deep max

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	Re: Help With Delta Pulse Problem « Reply #5 on: May 17, 2012, 08:44:45 am »

Hello, if you are interested I can sell you a kit delta pulse or sniffer xr -71 tested working and ready for use.Thanks

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japanese

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GARY PI

	Re: Help With Delta Pulse Problem « Reply #6 on: May 17, 2012, 12:05:32 pm »

Hi viswanathmarachi

You are already lucky because everyone here in this site wants to help you and make your project work ------- Here, you will feel very happy and will be make your experience and this most important thing.

Please send a clear picture The top and bottom.
best time

j.

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viswanathmarachi Topic starter

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	Re: Help With Delta Pulse Problem « Reply #7 on: May 18, 2012, 01:45:09 am »

Hi Deepmax,

Thanks for the offer.. sorry coz I prefer making my own as i want to make electronics as my hobby not treasure hunting by using a ready to make kit..

-Viswanath Marachi

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viswanathmarachi Topic starter

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	Re: Help With Delta Pulse Problem « Reply #8 on: May 21, 2012, 09:46:24 am »

Hi Japanese,

Here are the pictures of my DP....

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japanese

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GARY PI

	Re: Help With Delta Pulse Problem « Reply #9 on: May 21, 2012, 11:13:04 am »

Hi viswanathmarachi
vd12 inversed,,,,, Invert and sound will come out

best time

j.

Posted on: May 21, 2012, 11:01:19 AM

Hi viswanathmarachi
Place on the picture,,,,I wish you success
best time

j.

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