This is a service manual for Haier LCD TV LED40T28PKV(1001). It includes product introduction, function specifications, features, differences, scheme overview, circuit framework, power distribution, main board principle description, product explosion diagram and details, main board and power board diagram, software upgrade methods and other contents
This service manual provides detailed information for the Hisense LED40T28PKV(1001) LCD television, including product introduction, specifications, and differences from related models. It contains extensive circuit block diagrams, power distribution tables, and explanations of the main board circuitry.
The document also describes the software upgrade procedure using a USB flash drive, lists all external interfaces (HDMI, VGA, AV, etc.), and provides part numbers for key components such as the MSD6I48 core and power regulators. This manual is written in Chinese.
| Model | LED40T28PKV(1001) |
|---|---|
| Product Name | 液晶彩色电视机 |
| Dimensions (without base) | 989 mm × 636 mm × 35 mm |
| Dimensions (with base) | 989 mm × 689 mm × 260 mm |
| Weight (without base) | 15.5 kg |
| Weight (with base) | 19.5 kg |
| Screen Size | 102 cm (40 inches) |
| Resolution | 1920 × 1080 |
| Power Input | 220 V ~ 50 Hz |
| Power Consumption | 90 W |
| Audio Power | 8 W + 8 W |
| Reception Standards | PAL, NTSC, SECAM |
Copy the “Target” folder from the upgrade package to a USB flash drive (≥256 MB), insert the drive while the TV is powered on, and follow the on‑screen prompts; do not power off or remove the USB during the process.
The core needs about 1.3 V (design value 1.26 V, actual after DC‑DC conversion 1.27‑1.28 V).