Opening the Fisher CZ-21 step by step. Machine repair

Any metal detector breaks down, it’s only a matter of time. What is more, underwater metal detectors break down much more often than ground search ones. Here’s a step-by-step photo report: opening the Fisher CZ-21 underwater metal detector.

Remove the knobs from the controls on the detector’s front panel.

opening-the-fisher-cz-21-step-by-step-machine-repair-01

Unstick the control panel label.

opening-the-fisher-cz-21-step-by-step-machine-repair-02

Unscrew the two upper (hex) screws securing the front panel.

opening-the-fisher-cz-21-step-by-step-machine-repair-03

Unstick the two shock-absorbing strips inside the battery compartment.

opening-the-fisher-cz-21-step-by-step-machine-repair-04

Unscrew the two lower (hex) screws inside the battery compartment.

opening-the-fisher-cz-21-step-by-step-machine-repair-05

Unscrew the headphone cable strain relief. Remove the rubber gasket which provides a tight seal. Get traces of silicone sealant off the cable (so that it moves freely back and forth).

opening-the-fisher-cz-21-step-by-step-machine-repair-06

Unscrew the coil cable strain relief. Remove the rubber gasket and get traces of silicone sealant off the cable (so that it moves freely back and forth).

opening-the-fisher-cz-21-step-by-step-machine-repair-07

Pull on the detector’s front panel and take the circuit board out of the housing by pushing the panel with the coil and headphone cables.

opening-the-fisher-cz-21-step-by-step-machine-repair-08

All about the Fisher CZ-21 metal detector is collected here (photos, videos, tests, comparisons) and on Knowledgebase pages (specs, features, user manual).

Share to Facebook

Leave a Reply

Your email address will not be published. Required fields are marked *