论文部分内容阅读
夏普SP—30机芯的微处理器采用IX2321CE,小信号处理电路采用飞利浦TDA8362单片电路。适用机型有:夏普21D—CM、21D—CKl、21D—CKlA等机型。夏普SP—30机芯开关电源采用IXl779CE为振荡、稳压的集成电路和大功率开关管2SDl883组成,为主板提供+B(115V)和14V电源;副电源取自主电源,待机采用阻断行激励信号的方式。该机芯微处理器ICl001(1X2321CE)的脚(PROTECTOR/保护)为保护专用检测引脚,设置了外接多路过流、过压检测电路,当检测电路检测到故障时,微处理器采取待机保护措施。本文以夏普21D—CM彩电为
Sharp SP-30 microprocessor microprocessor uses IX2321CE, small signal processing circuit using Philips TDA8362 monolithic circuit. Applicable models are: Sharp 21D-CM, 21D-CKl, 21D-CKlA and other models. Sharp SP-30 movement switching power supply using IXl779CE for oscillation, regulated integrated circuits and high-power switch 2SDl883 composition, to provide + B (115V) and 14V power supply for the motherboard; Vice power from the main power supply, The way of the signal. The movement microprocessor ICl001 (1X2321CE) feet (PROTECTOR / protection) for the protection of dedicated detection pins, set up an external multi-channel overcurrent and overvoltage detection circuit, when the detection circuit detects a fault, the microprocessor to take the standby protection Measures. In this paper, Sharp 21D-CM TV