This is a service manual for Hisense LED55T28GPN(1100) LCD TV. It mainly introduces the product appearance, function specifications, feature introduction, scheme overview, principle description, circuit framework, power distribution, etc.
This service manual provides detailed technical information for the Hisense LED55T28GPN(1100) LCD television. It includes a product introduction, solution overview, principle explanation, power distribution diagrams, exploded view with parts list, main board and power board schematics, and a step‑by‑step software upgrade procedure.
Technicians can use the document to understand the TV’s multi‑core CPU architecture, voltage characteristics, and supported multimedia formats. The manual also outlines safety notes, required USB flash drive specifications, and troubleshooting steps for firmware upgrade failures. This manual is written in Chinese.
| Audio playback formats | MP3, WMA, WAV |
|---|---|
| Image display formats | JPEG 8192×8192, BMP 3000×3000, PNG 3000×3000 |
| Standby voltage | 3.3 V (3.3Vstb) |
The standby circuit uses a 3.3 V supply (3.3Vstb) derived from the 5 V standby rail.