GITALLER switch shaft circuit board replacement tutorial

Difficulty: 2/5 | Estimated time: about 15-20 minutes

Shaft circuit board types

Circuit board	Suitable for
Golden switch shaft circuit board	3-finger players
Brown switch shaft circuit board	4-finger players

Replacement tutorial

Prepare tools

Prepare Phillips screwdriver (preferably magnetic) + 2.5mm hexagon socket screwdriver.
Loosen strap screws

Loosen 2 screws at the strap position with 2.5mm hex driver (just loosen, do not remove).
Unscrew in order

Unscrew screws in the order shown.
Unscrew 10 screws

Unscrew 10 screws.
Open bottom cover

Open from the upper part, unplug the 5PIN USB cable, loosen the USB cable clip.
Remove screws in order

Remove screws in the order shown.
Unscrew gyro PCB

Unscrew 2 screws of the gyro PCB.
Unscrew shaft PCB

Unscrew 4 screws of the shaft PCB.
Take out shaft PCB

Take out the shaft PCB and remove the 6PIN wire (push upward).
Remove keycaps

Remove all keycaps.
Remove limit blocks

Remove 10 limit blocks (push finger down about 1mm gently, push laterally).
Install keycaps to new PCB

Install keycaps to the gold switch shaft PCB, check that all 5 keycaps are the same height.
Install limit blocks

Install limit blocks (pay attention to direction).
Install gold switch shaft PCB

Install the gold switch shaft PCB (leave 0.2mm gap for fine adjustment).
Install wire harness

Remove screws from the original PCB, install on new PCB.
Install gyroscope PCB

Install the gyroscope PCB.
Fix wire position

Use wire harness to fix wire position (leave gaps between wire and DIP pad).
Install screws

Install screws (lift guitar neck gently to make it easier).
Handle button wires

Handle Select/Start button wires as shown.
Handle bottom cover

Insert 5PIN USB, arrange wire harness.
Install bottom cover screws

Bottom cover screws in order (screws 3 & 4 should not be tightened too much).
Fine-tune (if needed)

If button friction is too large: keep gaps uniform, adjust shaft PCB (0.2mm in 4 directions).
Done

Replacement complete, test all buttons to ensure they work properly.