论文部分内容阅读
该机电源可分为主电源和副电源:两部分,主电源由 IC601(SFR—F6656厚膜)、T603为核心组成;副电源主要由 Q605、Q606、T604为核心组成,专为微机(CPU)控制系统供电。一、主开关电源1.主开关电源向整机提供五组直流电压:第一路直流电压为135V(+B),主要用于供给行扫描输出级电路及通过 R652(22kΩ/2W)、D620(RD30ES)、C629(10μF/50W)产生30V 直流电压供给调谐电路。第二路直流电压为11V,用于产生+9V 直流电压,供给低功耗电路。
The machine power can be divided into main power and secondary power: two parts, the main power from IC601 (SFR-F6656 thick film), T603 as the core components; Vice power mainly by the Q605, Q606, T604 as the core composition, Control system power supply. First, the main switch power supply 1. The main switch power supply to the machine to provide five sets of DC voltage: the first DC voltage of 135V (+ B), mainly for the supply line scanning output stage circuit and through the R652 (22kΩ / 2W), D620 (RD30ES), C629 (10μF / 50W) to produce 30V DC voltage supply to the tuning circuit. The second DC voltage of 11V, used to produce +9 V DC voltage, low-power circuits.