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classic id mods

A

Anonymous

Guest
hi, can anyone please tell me how to modify the classic id with a black sand switch, if possible.
thanks ROB.
 
You really don't need it because your unit allready goes to the range the Black sand switch will put it.
All the black sand switch does is lowers the level of discrimination. Your Disc. control in the Min. position is the same as the Classic III or IDX in the black sand mode with the Disc. at min.
Mr. Bill
 
All the Black Sand switch does is short the 2 pins on the blank connector slot P6! On my late Classic ID, shorting the 2 pins results in a downwards shift of the Disc. This is what the switch on the Classic IDX and Classic III I also have, does. The shift is approximately 1/4 of the range on the dial!
You can test yours the same way I tested mine before I did it, just short the 2 P6 solder traces together with a screwdriver blade, and check how much the Disc shifts!
I installed a simple On/Off toggle into the box, with about 6" of wire on the 2 terminals on the switch. Then I carefully soldered them to the circuit board at the blank P6 connector slot. The OE setup uses a quick connect there just like the other switch connectors. I used a label maker to make a sticker. With the switch "On", you are in Black Sand mode! This shouldn't cost more than $5 to do!
Hope this helps! Happy huntin'!
 
many thanks for all your prompt and useful advice. if there is no advantage with having the sw fitted why do the other models have it (and at a more expensive price, as if to suggest that these additions are worth the extra price for having them? the idx pro has it fitted as standard at a higher price....suggesting that this is a better machine for having it fitted....if the classic id has no need of the switch, how do they justify fitting one to the idx pro?
 
The only other models that have it are the Classic III, and the IDX. It’s a range of adjustment that most users will never need, but there again it is another adjustment.
The last Classic II, and Classic ID I had, the discriminator would adjust down into the same range as the ones with the switch. Perhaps in the last newer versions that has been changed ???? Like I explained in my other post the switch just lowers the level of discrimination downward. In some bad ground hunting conditions setting the discrimination control this low could help. You would not be able to use the discriminator as normal, and still get the benefits of working in tough ground. It would be one or the other. If you get a chance to read a user manual for the Classic II, IDX, it explains this to you.
Marty suggested the way to modify your unit, why not try it, and see for your self ?? Easier yet, why not just try it against a Classic III or a IDX ?? I’m not trying to be sarcastic, just making a few suggestions. <img src="/metal/html/smile.gif" border=0 width=15 height=15 alt=":)"> <img src="/metal/html/smile.gif" border=0 width=15 height=15 alt=":)">
Mr. Bill
 
thanks Mr bill for your time and trouble to explain it all to me. i see what you mean. if it has no detrimental effect on the workings of my classic id then i might as well do as you suggest and do the mod anyway. for i will have nothing to loose and may gain some advantage for mineralised ground/ or wet sand work. thanks once again for your help.
Regards Rob. ( Nottingham city, England.)
 
...using a trimmer on the circuit board. My Classic III would not Disc out zinc cents with the Disc set at Max, a slight adjustment of the trimmer shifted the Disc enough to allow me to block them out! (I don't have my notes on which trimmer it was, here at work, I do have it at home) Maybe this accounts for the difference in some of the units!?!
Happy huntin'!
P.S. I found the shift to be helpful on the local SoCal beaches, that's why I did it. You will get about the same response from the Classic in Black sand mode, min. Disc setting as you do when you are in toggle forward, all-Metal mode, except you don't hear the threshold. I like to dig everything at the beach!
 
You are correct about the Classic III. Because of the circuit difference between it, and the Classic II/ID, it would not get rid of zinc's. White's was made aware of it, and took steps to correct.
Yes the trimmer moved the adjustment over, but the best way would be to change a resistor in the circuit. This way the pre-set points can be adjusted to be where they should.
In either case as long as you the opperator is happy, that's all that counts. <img src="/metal/html/smile.gif" border=0 width=15 height=15 alt=":)">
Mr. Bill
 
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