Tone ID for the Classic III

[thebeatmachine]

That's Right. You Got it. the power goes like this LSP6 goes to the E+ on the pwr regulator.
LSP5 and all of the V- go to the Negative or center terminal of the Regulator.
Bat + goes to the Positive side of the Battery or Left side of the Regulator.
Anything Labeled Ground (not E-) Goes to the chassis. (Mine is attached to the screw that holds the main board to the case by the battery door) That is your Power hook up.

Now input is going to be Lsp3 is Going to be Attached to Diode 3 or somewhere appropriate as indicated by the Schematic.

Output is SP1 to the GREY wire on your head phone Jack.


Now here's some Mods for the Mod:
Use a SPST switch on the output to turn the mod on and off.

Use a resistor in sieries on the output to find a volume that you like maybe 3K, 4K, 2K, Ohms.

And the last one is C2 on the mod rated at 2n2 can be used with a higher or lower component to adjust the pitch of the mod.

Also on the Main Whites board C31 also controls the pitch of the ALL METAL mode so You can select what ever sounds you want for either two tones.
On Mine the all metal mode is pretty low toned and the Disc beep in harmony with it. So it always sounds nice. There is a distinct sound for a positive target That you will learn. When They the two tones are right on top of each other it is a good target. a false signal can be ID'd for what it is right away.

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[GoGoGopher]

Thank you very much for the clarification...I am gonna install it tonight and hopefully, I can get out and use it soon...

HH,

 

[GoGoGopher]

Wouldn't it be better to put the switch on the Bat+ line? is this not supposed to be the main power for the mod? I would want to put it on a line so that when not in use, it is not sucking battery juice.

HH,

 

[thebeatmachine]

That's waht I did at first. I tried to switch the power supply on the mod but I got bad results. So I just put the switch on the output. It worls well and don't be too concerned about current drain because the main load is the headphones and if they're disconnected from the mod than there is only a small amount of drain from the other componebts if any at all.

 

[GoGoGopher]

OK...One last dumb question, then I am done...I think...

The 3N3 part...What is it? A chip inductor package??? What part did you use, and where did you get it from?


Thanks,

 

[thebeatmachine]

2.2n capacitor. This changes the pitch so try something close . maybe its a 22n

 

[LX Kid]

I also just got the Classic III and would like to make this modification on mine. Pictures of the finished board and it's installation is worth a thousand words! Thanks