This document describes the features and characteristics of the HDP2910 and HDP3406M series high-definition color televisions, including support for different scanning modes, processing of high-definition signals, and generation and processing of line and field sync signals.
The Hisense HDP2910 is a high‑definition television that supports multiple scanning modes (100 Hz, 60 Hz, 1250 Hz, 833 Hz) and resolutions such as 1080P/60, 1080I50, 1080I60, 720P/60, 720P/50, as well as VGA modes 640×480/60, 800×600/60, 1024×768/60. It includes audio processing with TDA7439 and power amplification using TDA7495/TDA7497.
The manual details the signal flow, circuit principles, and power‑supply design, including the Fairchild KA5Q1265RF switching regulator and various voltage outputs (+5 V, +8 V, +12 V, +15 V, +28 V). It also lists chip functions, pin assignments, and a step‑by‑step repair flow for diagnosing power‑supply and video‑processing issues. This manual is written in Chinese.
| VGA display modes | 640×480/60, 800×600/60, 1024×768/60 |
|---|---|
| Power‑supply IC | Fairchild KA5Q1265RF switching regulator |
| Audio processor | ST TDA7439 with 4‑way audio input selection |
The power‑supply is controlled by the Fairchild KA5Q1265RF switching regulator IC.
The TV uses the ST TDA7439 audio processor, which offers bass, mid, treble adjustment, volume control, balance, and four‑way audio input selection.
VGA input supports 640×480 at 60 Hz, 800×600 at 60 Hz, and 1024×768 at 60 Hz.