Need help with Micronta 4003

[kblackphoto]

I finally found someone that would let me borrow a metal detector until I have money to buy my own and I looked up how to use it and followed these steps:
Step 1
Turn the metal detector on with the "Volume" knob. This also adjusts the level of sound.

Step 2
Check the batteries. Turn the "Test" knob to the Battery 1 or Battery 2 position and confirm that the needle points to the green area. Then turn the knob to "Nor" for normal operation.

Step 3
Hit the red "Auto Tune" button on the carrying handle with the head portion of the detector away from any metal objects, and turn the "Tune" knob until the needle hits 0.

Step 4
Turn the "Sens" knob to the middle position.

Step 5
Turn the "Mode" knob to VLF (very low frequency), and turn the "GND" knob to account for the type of ground (such as dirt or sand) you are using the metal detector for.

Step 6
Turn the "Mode" knob to either the TR1 or TR2 position. To set the detector to find metals such as gold or silver, set the "Discrim" knob to Non-ferrous Metals. You can also set it to find Ferrous Metals if you want to search for iron or steel.

Step 7
Hold the detector with the search coil parallel to the ground. You can adjust the angle of the search coil by loosening the wing nut on the end of the shaft and swinging it to the desired position.

Step 8
Swing the detector in wide sweeps about 2 inches from the ground.

Problem is- I can't get Step 3 to work. It says to adjust the tune button until it hits 0. It won't move from the far left hand side to adjust to 0. Is there something I could manually do to fix this problem?

 

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[homefires]

Try the two different TR postition.

Make sure the Discim is turned all the way down.

 

[Functional]

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

Maybe a manual would help?
Try:
http://support.radioshack.com/productinfo/
Select "Toys and Gaming" from the drop down list.
Click on metal detectors.
Click on 63-3003 (this is the page that covers the Micronta 4003.
There are 4 pages to choose from, but you will likely want the one titled "Operation".

Good luck!

F.

 

[kblackphoto]

Thanks for the info Ill check it out

 

[dazoff]

If the needle has static buildup wipe the meter with a dryer sheet that may be why it won't go to zero

 

[Functional]

Step 3
Hit the red "Auto Tune" button on the carrying handle with the head portion of the detector away from any metal objects, and turn the "Tune" knob until the needle hits 0.

Problem is- I can't get Step 3 to work. It says to adjust the tune button until it hits 0. It won't move from the far left hand side to adjust to 0. Is there something I could manually do to fix this problem?

I neglected to mention that the meter's on some detectors have a tiny screw used to adjust the meter back to zero. Mine doesn't have this feature, but yours might. Other detectors, like my model 63-3004, have a needle that seems to just be bent into position. I haven't opened mine up, so I can't say for sure, but if following the manual doesn't result in the needle being able to repositioning itself back to zero, then it may be possible to do so manually.

F.

 

[Svverwter]

Thank you for the*informative*posts.