-98-TroubleshootingDetection of power failureProjector provides a protection circuit to prevent the secondary failure when the power failure, fans failure or tempera-ture failure occurs on the projector. The power failure detection lines "PF_3.3V_AD", "PF_3.3V_GAM", etc. are con-nected to the main power supplies. When the failure occurs, IC301 receives an error informa-tion through IC5201, and then outputs the signal "LAMP_DC_ON" from pin 32. The signal "LAMP_DC_ON"is supplied to power supply circuit to control the power supply operation.Error information tablePower failure detection systemIC Pin Signal Name Connection Lines Error Information Failure AreaIC5201XC3S50A164 PF_KEY 3.3V_KEY , 2.5V_KEY, 1.8V_KEY �3.3VBF, 2.5V_BF, 1.2VBF KS&DL KEYSTONE(IC2301)DAY LIGHT VIEW(IC4401)202 PF_3.3V_GAM 3.3V_GAM GAMMA, 3.3V 3.3V Gamma on Main227 PF_2.5V_GAM 2.5V_GAM GAMMA, 2.5V 2.5V Gamma on Main123 PF_1.8V_GAM 1.8V_GAM GAMMA, 1.8V 1.8V Gamma on Main122 PF_15V_GAM 15.5V_GAM SH&PANEL, 15.5V 15V Gamma on Main73 PF_5VSI 5VSI HDMI, 5V 5V HDMI on Main166 PF_3.3VSI 3.3VSI HDMI, 3.3V 3.3V HDMI&BUFFER on Main167 PF_1.2VS1 1.2VS1-1 HDMI, 1.2V 1.2V HDMI on Main220 PF_3.3V_AD 3.3V_AD ADC, 3.3V ADC(ISL51002)&BUFFER13 PF_1.8VD_AD 1.8VD_A/D ADC, 1.8VD ADC(ISL51002)14 PF_1.8VA_AD 1.8VA_A/D ADC, 1.8VA ADC(ISL51002)11 PF_S-6V_AV S-6V AV, S-6V S-6V on Main/AV121 PF_9V_LNS 9V_LNS LENS, 9V 9V Lens Drive71 PF_15V_LNS 15V_LNS LENS, 15V 15V Lens Drive245 PF_S3.3V S3.3V MAIN, S3.3V S3.3V on Main168 PF_S5V S5V MAIN, S5V S5V ADC on Main226 PF_S5V_MAIN S5VL MAIN, S5VL 5V on Main204 PF_12V_FILTER 12V_ID, 12V AUDIO&ID 12V AUDIO SW, LAMP ID Drive104 FAN_PLS[0] FN901 Power & Fan Lock FN901, FN901 Power & Fan Lock222 FAN_PLS[1] FN902 Power & Fan Lock FN902, FN902 Power & Fan Lock224 FAN_PLS[2] FN903 Power & Fan Lock FN903, FN903 Power & Fan Lock107 FAN_PLS[3] FN904 Power & Fan Lock FN904, FN904 Power & Fan Lock225 FAN_PLS[4] FN905 Power & Fan Lock FN905, FN905 Power & Fan Lock192/191/252FAN_PLS[5/6/7] FN906, FN907, FN908 Power & FanLock FN906,907,908 FN906, FN907, FN908 Power & FanLock251/237/216FAN_PLS[8/9/10] FN909, FN910, FN911 Power & FanLock FN909,910,911 FN909, FN910, FN911 Power & FanLockIC301PW39269 PF_1.2V_FRT S1.2V_FRT_INT SWFPGA, 1.2V FPGA 1.2V343 FILTER_DET Filter Cartridge Detection FILTER, DET Filter Cartridge DetectionIC5201-- FPGASW CONFIG FPGA Config SWFPGA, ERROR SWFPGA Config Error67, 8 SHUTTER_POSI1SHUTTER_POSI2 Shutter Operation SHUTTER, ERROR Shutter Operation Error-- IRIS EEROR Iris Operation IRIS, ERROR Iris Operation Error
