This manual mainly introduces the chip components of HDP2908, namely KA5Q1265RF, KA7630 and TDA7439, and gives the pin names and pin descriptions of each chip.
This service manual provides detailed information on the HDP2908 television, including chip introductions, pin assignments, signal flow diagrams, and functional descriptions. It covers power modules, audio processing ICs, video decoding circuits, and the CPU used in the TV.
The document also includes troubleshooting procedures, repair flowcharts, and specifications such as display type, scanning modes, video interfaces, and preset channel count, helping technicians diagnose and fix common issues. This manual is written in Chinese.
| Display type | 100 Hz flat‑panel |
|---|---|
| Scanning modes | 100 Hz, 1250, 60 Hz progressive, 833 pixel enhancement |
| HD compatibility | 1080I50 / 1080I60 |
| DVD interface | YPbPr component |
| Preset channels | 200 |
It supports four scanning modes: 100 Hz, 1250, 60 Hz progressive, and 833 pixel enhancement.
The TV provides 200 preset channels.
The display operates at a 100 Hz refresh rate.