| 摘要 |
The TV receiver for adjustable PIF and AFT frequency comprises a resonance circuit unit for generating a resonance frequency for auto fine tuning and detecting a video signal, a serially connected condenser and a high frequency diode connected to the resonance circuit, a selection unit for choosing a broadcasting method, a bias unit for turning on the high frequency diode, and a controlling unit for operating the bias unit, thereby providing a worldwide usable TV. |
