Control functions, Operating tips – Fisher M-SCOPE 1236-X2 User Manual
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CONTROL FUNCTIONS
1. SILENCER: When the toggle switch is flipped ON, 
the 1236-X2 runs in the 3rd derivative SILENCER 
discrimination mode, eliminating the annoying “pops” 
and “clicks” heard when searching in extremely 
trashy areas. Flipping it to OFF, the 1236-X2 runs 
in classic 2nd derivative discrimination mode. 
2. DISC: This control sets the discrimination level. At 
a setting of 0, all types of metal are detected. At 
higher settings, less conductive objects and trash 
are rejected. When the DISC control is fully rotated 
(counterclockwise) to the IRON preset, the 1236-X2 
is set to reject common trash and nails. 
Note: The DISC Control has no effect in PINPOINT 
mode. 
3. SENSITIVITY: This control adjusts sensitivity to targets 
and ground minerals. The higher the setting, the 
deeper you’ll detect. However, you will also pick up 
more false signals in highly mineralized or trashy soil. 
At a setting of 10, a slight amount of audio threshold 
is provided so the faintest of targets can be heard. At 
the BATTERY setting, a battery test tone is sounded. 
A loud tone indicates good batteries. A faint tone 
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2
1
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6
5
4
Figure 5. Control panel
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OPERATING TIPS
1. We’ve already said it, but it bears repeating: TAKE 
YOUR TIME AND OVERLAP YOUR SWEEPS. 
2. Use good headphones. You won’t miss faint 
targets, you won’t attract unwanted attention and 
you won’t bother others. 
3. Practice pinpointing. There’s nothing sacred 
about the methods described in this manual. Many 
1236-X2 users have developed their own pinpointing 
methods. 
4. Always BURY A COIN when working in unfamiliar 
territory, and check it at different discrimination and 
sensitivity levels. There may be some sensitivity loss 
at higher levels of discrimination. The greater the 
ground mineralization, the higher the sensitivity loss. 
For example, you may be able to detect a penny at 
6 inches with zero discrimination, but no deeper than 
4 inches at the pull-tab discrimination point. 
5. The 1236-X2 is an easy detector to use, but if you’re 
having trouble with any aspect of its operation 
(pinpointing, searching, false signals, etc.) go back 
and reread the part of this manual relating to your 
problem. 
6. If a target gives a strong response in the search 
mode but no response in the NO-Motion Pinpoint 
mode, you may have “tuned out” your target (and 
all others) by pushing the PINPOINT button over 
another piece of metal. If you suspect this may be 
the case, move the search coil to another spot 
before pressing the PINPOINT button again. 
7. When in doubt about the possible identity of a 
target, dig it up.
1236x2 manual-8704810.indd 10
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