TCLPWLC维修手册资料.ppt

PWL37C维修手册TCL多媒体中国业务中心市场质量部制作:陈国浩chenguohao@PWL37C电源板的使用机型L32M61R/MS88BL32M71R/MS88BL37E77F/MS89L37M61B/MS88L37M61F/MS89L37M61/MS88L37M71F/MS89L37M71/MS88LCD37K73B/MS88L32E77/MS91AL37E77/MS91AL40E77/MS91L40E9FR/MS91CL40E9/MS88CL40M9FR/MS91CL40M9/MS91AL42E77/MS91AL42E9FR/MS91CL42E9/MS88CSL32M7A/MS88SL32M7/MS18L32E9V/MS91BL32M61B/MS88PWL37电源板的电器规格ItemMinimum最小值Normal常规值Maximum最大值Condition测试条件InputVoltage输入电压100Vac220Vac240VacInputFrequency输入频率47HZ50/60HZ63HZMax.InputACCurrent最大输入交流电流3.0AMax.Inrushcurrent浪涌电流50Apeak120Vac100Apeak220VacEfficiency(fullload)效率（满载）82%Min.100Vac，fullload88%Min.220Vac，fullloadLeakageCurrent漏电流0.75mAMax.230VacINPUTHarmonicsCurrent谐波电流MeanGB17625.1-1998/IEC61000-3-2CLASSDStandbyPowerLoss待机功耗1WMax.50mA/100~240VacInputFuseType输入保险型号T5AL250VACPWL37电源板输出参数ItemCH1CH2CH3OutputVoltage输出电压24V12V5VsbMinimumloadcurrent最小电流0.5A0.5A0AMaximumloadcurrent最大电流6A4A1.0AMaximumpeakcurrent最大峰值电流8A6A2ALineregulation线性调整率±1%±1%±1%Loadregulation负载调整率±5%±5%±5%Crossregulation交叉调整率±5%±5%±5%DCOutputRippleNoise输出纹波和噪声(remark)240mA120mA100mAPWL37电源板过压保护点设置OutputVoltage输出电压OverVoltageRange过压点范围Comment24V27~32V24Vand12Vshutdown;5Vnormal12V13~16V24Vand12Vshutdown;5Vnormal5Vsb6~9V24Vand12Vshutdown;5Vhiccup电源进入保护状态后，AC重置后电源才能重新工作。PWL37电源板过流保护设置OutputVoltage输出电压OverCurrent过流Comment备注24V8-10A24Vand12Vshutdown5Vnormal12V8-10A24Vand12Vshutdown5Vnormal5V2-3.5A24Vand12Vshutdown5Vhiccup电源进入保护状态后，AC重置后电源才能重新工作。PWL37电源板输入、输出插座CON1交流输入插座AC-LACINPUTLINEAC-NACINPUTNUTURECON5待机输出插座1,2GND3,45VSBCON6电源输出插座1,PS-ON开机信号2,324V4,5,6GND7,12V8,9NCPWL37电源板主要元件介绍（40-PWL37C-PWG1XG）BD1整流桥堆QW10、QW9（PWMMOS管）D2（储能整流）、QF6、QF5（PFCMOS管）DS3、DS4（12V整流）DS2、DS1（24V整流）T1（开关变压器）L1储能电感T2(5V变压器）5V待机电路输入电路PWL37电源板实物图片IC2PFCIC4电流保护比较器IC1待机IC3PWMIC10（5V稳压光耦）IC6（VCC控制光耦）IC5（24V、12V稳压光耦）PWL37电源板原理框图EMC滤波电路桥式整流电路PFC控制电路IC2L6563PWM控制电路IC3L6599T1隔离变压器输出整流滤波电路VCC控制电路待机电路IC1VIPer22AT2隔离变压器输出整流滤波电路稳压电路5VSTBACIN16V141256783稳压电路过流、过压保护电路PS-ON待机/开机控制电路4141024V12V12VPWL37电源板线路图输入电路5V待机电路开机和保护电路稳压取样电路VCC电路PFC电路PWM电路输出整流电路PWL37电源板输入