Logitech PRO X TKL LIGHTSPEED Repair

The PRO X TKL LIGHTSPEED is a compact tenkeyless wireless mechanical gaming keyboard designed for competitive play and portability. It uses durable materials and construction intended for frequent transport and heavy use, and features customizable mechanical switches and per-key RGB lighting. The keyboard supports Logitech LIGHTSPEED 2.4 GHz wireless connectivity and a wired USB connection for low-latency input and charging. The design emphasizes modularity with user-replaceable key switches and on-board lighting customization.

The Logitech PRO X TKL LIGHTSPEED can be identified by the model number (M/N CU0021). The model label is on the PRO X TKL LIGHTSPEED can be identified by its tenkeyless layout, Logitech G branding, and a model label on the underside of the keyboard. Keyboard: model/identification label on the underside; Receiver: model/markings on the USB receiver housing (when present). This label lists the model (M/N), part (P/N), and serial (S/N) numbers.

• Form Factor: Tenkeyless (TKL, 87 keys)
• Switch Type: Logitech GX Mechanical switches (available GX Blue, GX Brown, GX Red — switch model varies by retail SKU)
• Switch Mount: Hot‑swappable switch sockets (supports common 3‑pin and 5‑pin mechanical switch footprints)
• Connectivity: LIGHTSPEED 2.4 GHz wireless (USB receiver) and wired USB (detachable cable)
• Backlighting: Per‑key RGB LIGHTSYNC
• Battery: Rechargeable internal battery (capacity not specified on the Logitech support page)
• Keycap Material: Standard ABS keycaps (replacement keycap sets available separately)
• Onboard Memory: Onboard profile storage for lighting/macros (exact capacity not listed on support page)
• Package Components / Model Numbers: Support page does not list spare-part model numbers or distinct component model numbers (keyboard model label located on underside; receiver model on housing)
• Firmware / Software: Managed via Logitech support/software (Logi Options+/G HUB); support page notes some legacy firmware tools are deprecated

Common repair-relevant faults include unresponsive or intermittent keys (often due to faulty switches or debris), wireless connectivity/pairing failures, and battery/charging problems. Diagnostic steps: test keyboard wired to rule out wireless issues, remove keycaps to inspect and swap suspected switches (hot‑swap or by testing with a known-good switch), and check USB receiver/pairing and software/firmware status.

For additional troubleshooting help, visit: Visit https://support.logi.com for drivers, downloads, and product support articles specific to the PRO X TKL LIGHTSPEED.

Limited hardware warranty varies by region; consult Logitech warranty information on the support site for terms and claim procedures.

• https://support.logi.com/hc/en-us/articl...