Nintendo WaveBird Wireless Controller Receiver Teardown
Teardowns provide a look inside a device and should not be used as disassembly instructions.
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The IC is a custom (or relabeled) Nintendo chip marked "WCRX-DOL / T2.7488K1". ("Wireless Controller Receiver - Dolphin"). It is presumably a microcontroller that decodes signals from the radio and sends them to the console.
This 4-pin connector goes to the joypad connector on the GameCube.
Desolder these four points to remove the shield and expose the radio on the other side.
The bottom side has all the RF circuitry -- the chip is a Nintendo chip marked "WR-DOL / H2102 / CG2710 / 02", presumably the radio.
EPCOS X6882 custom bandpass filter
Trim-pot for adjustment at the factory -- could be a frequency tweak or gain adjustment.
The rotary switch allows the user to choose a frequency to avoid interference with other devices.
The antenna is mounted directly on the PCB, inside the device.
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