Installation steps
Test PCB
Testing the PCB before assembly ensures functionality and prevents unnecessary troubleshooting later.
Skipping this step may void your replacement eligibility.
To test the PCB:
1. Connect the PCB to the magnetic daughterboard in the bottom case.
2. Connect the USB cable to the daughterboard.
3. Open a Chromium-based browser (Chrome, Edge) and navigate to VIA’s Key Tester tab.
4. Flip the PCB over and use metal tweezers (or any conductive tool) to touch both contacts of
each hotswap socket. The corresponding key should be highlighted in VIA.
See this video on how to perform the contact test.
If any socket fails to highlight, please contact Meletrix support for assistance.
Note:
● The Fn key will not highlight on the Key Tester without the Test Matrix option enabled, this is
expected behaviour
To test the PCB wireless functionality:
1. Insert switches into the Fn, Z, X, and C positions.
2. Press and hold Fn+Z for 3 to 5 seconds, until the LED under Z flashes rapidly to indicate it is in
pairing mode
3. Connect to the Zoom75 TIGA on a suitable Bluetooth enabled device to confirm operation. The
keyboard should appear as “Zoom75 TIGA BT1”. After a successful pairing, the LED stays on for
3 seconds before turning off
4. Repeat for X and C for the remaining two bluetooth channels
Note:
● Take care when inserting switches that the PCB is either flat on a surface or support the back of
the hotswap sockets to ensure the socket does not pop off the PCB
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