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Treasure Hunting & Metal Detecting Forum Message Boards - Detector Hunter Whites Minelab Tesoro XP > Tech Talk > Metal Detectors (Moderators: Eugene52, xavier, GoldDigger1950) >

I need an IC for this circuit . Please Please Help

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hamidmatris Topic starter

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	I need an IC for this circuit . Please Please Help « on: November 13, 2012, 08:13:09 am »

I have a metal detector, but I do not know what's orientation
An IC burned but it is carved.
IC is burned b
If you know you want to tell me so I can make it
I leave you some pictures of the Metal Detector
Thank you

Posted on: November 13, 2012, 08:07:58 AM

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caleb

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	Re: I need an IC for this circuit . Please Please Help « Reply #1 on: November 13, 2012, 10:45:42 pm »

If you peel off the b you may be able to read the designator on top the chip, google the number and look for a similar chip on digikey. good luck

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hamidmatris Topic starter

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	Re: I need an IC for this circuit . Please Please Help « Reply #2 on: November 14, 2012, 03:05:31 am »

Hello.
No chip completely erased
Nothing has been written above Undecided

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caleb

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	Re: I need an IC for this circuit . Please Please Help « Reply #3 on: November 14, 2012, 11:55:45 am »

This is the closest schematic I can find, however Im not sure if your is a G or not. Both 16 pin ics appear to be CD4538.

Loooong thread on pulse star can be found on the geotech site

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Good luck

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hamidmatris Topic starter

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	Re: I need an IC for this circuit . Please Please Help « Reply #4 on: November 16, 2012, 04:50:47 pm »

hi.
IC is closely
This view of the circuit

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GoldDigger1950

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	Re: I need an IC for this circuit . Please Please Help « Reply #5 on: November 17, 2012, 08:58:05 am »

	Quote:	Posted by caleb
CD4538

You have your answer. That is the part number of an obsolete part. You need to look for a substitute.

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	Re: I need an IC for this circuit . Please Please Help « Reply #6 on: November 17, 2012, 10:27:28 am »

They can still be had!

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	Re: I need an IC for this circuit . Please Please Help « Reply #7 on: November 17, 2012, 11:33:00 am »

After a closer look his ic is a 14 pin dip not a 16 like the cd4538. I looked but can not seem to find a schematic for his machine. It will probably take a designer reverse engineering the board to figure out what it was, that is a bit beyond my skill level at this point. Good luck, since your machine is european you may be able to find a schematic on a site in another language.

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	Re: I need an IC for this circuit . Please Please Help « Reply #8 on: November 17, 2012, 11:43:50 am »

	Quote:	Posted by homefire
They can still be had!

A lot of obsolete things can still be bought, mate. I trust a substitute more than I do a tube of chips found in a basement or garage somewhere. Your mileage may vary, of course.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.

Let's Talk Treasure!

hamidmatris Topic starter

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	Re: I need an IC for this circuit . Please Please Help « Reply #9 on: November 29, 2012, 09:07:42 am »

hi all.
ic B is 4013.IEC
ic 1,2,3,4, is LM3914
ic N5 is LF398
but I could not find another IC
For example, L8, F8, A, 87, X
I'm very grateful if someone could find

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