TCL A400M 75 Inch QD-Mini LED 4K Google TV 2026
Official Goods
- Official HK version with manufacturer warranty
- 100% brand new
- Collection in Kwun Tong by appointment — please WhatsApp to confirm stock and timing before travelling; no TV demonstrations or trials
- Check Hong Kong reception and apps for the supplied model — local TV reception, streaming apps and languages depend on the regional version; confirm before ordering
- Paid on-site installation available
Check Stock & Delivery on WhatsApp
Message us before purchase · Usually reply within minutes
Pay in store
Pickup available at Elechid
Usually ready in 24 hours
TCL 75-inch A400M combines quantum-dot Mini LED LCD backlighting, native 4K 144Hz and a flat-back lifestyle design. The separate 1080p 288Hz mode is for compatible sources; it is not 4K 288Hz.
Local dimming and the exact screen size
TCL’s current Hong Kong footnote assigns up to 240 dimming zones to 75A400M. It does not establish 488 zones for the 65-inch unit or a universal series count. Quantum dots, Mini LED light control and the LCD panel each contribute to the picture; do not treat zone count as a guarantee of no blooming or compare a typical brightness value with another TV’s peak without matching test conditions.
4K 144Hz and the separate accelerated mode
The manufacturer expressly separates native 4K 144Hz from 1080p 288Hz. Confirm the console or PC output, selected mode, cable and exact HDMI allocation before planning high-rate gaming. An HDMI 2.1 label alone does not prove that every port accepts the same bandwidth or mode, and VRR branding does not guarantee every console/game combination.
Flat-back placement, audio and art use
The 39.9mm flat-back design can help plan a wall-mounted placement, but installed clearance also depends on the bracket, cables and ventilation; it is not a promise of zero wall gap. TCL promotes ONKYO Hi-Fi and art features. Confirm supplied mounting accessories and content availability rather than assuming free artwork, unlimited 24/7 use or an included installation service.
Google TV and required services
Google TV is documented for the family. Check the supplied Hong Kong firmware for your preferred apps, languages, Gemini or art functions and any subscription charges. If a particular HDR format is essential, confirm the enabled format list; “AI HDR” or a brightness headline is not a complete decoder specification.
Selected model specifications
| Specification | Detail |
|---|---|
| Model / screen size | A400M / 75 inches |
| Resolution | 4K UHD |
| Display | Quantum-dot Mini LED-backlit LCD |
| Native refresh | 144Hz; manufacturer describes 4K 144Hz |
| Separate accelerator | 1080p 288Hz |
| Processor | TSR AiPQ |
| Platform | Google TV |
| Audio branding | ONKYO Hi-Fi |
| Flat-back thickness | 39.9mm (55/65/75-inch manufacturer claim) |
| Size-specific zones | Up to 240 (75-inch footnote) |
Room fit and installation planning
For this 75-inch model, measure the cabinet width and depth, stand footprint, seating position and delivery route. Screen diagonal is not the chassis, stand or carton dimension. Check cable clearance, ventilation, wall construction and the exact VESA/screw specification before wall mounting. If you use a Sound Bar, allow space without obscuring the picture or remote sensor.
Warranty, delivery and collection
Hong Kong licensed stock follows the actual brand/model warranty and supplied warranty-card terms; no universal three-year term is assumed. Installation is a separate paid service. Consult the TV warranty policy and delivery and installation guide for scope and conditions.
Kwun Tong premises are for stock and collection only, with no demonstration or viewing facilities. WhatsApp Elechid to discuss stock, collection and the supplied regional model.
Frequently asked questions
Does 288Hz mean 4K 288Hz?
No. TCL identifies 1080p 288Hz separately from native 4K 144Hz.
Are all sizes 240-zone TVs?
No. The current 240-zone footnote applies to 75 inches; obtain the exact sheet for another size.
Compare TCL TVs, 75-inch TVs, related display technologies.
Manufacturer specification reference: official model information.
