Panasonic PT-EW630U

-98-
Troubleshooting
Detection of power failure
Projector 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<SYSTEM CONTROL> receives an error informa-
tion through IC5201<FPGA>, 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 table
Power failure detection system
IC Pin Signal Name Connection Lines Error Information Failure Area
IC5201
XC3S50A
164 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 Main
227 PF_2.5V_GAM 2.5V_GAM GAMMA, 2.5V 2.5V Gamma on Main
123 PF_1.8V_GAM 1.8V_GAM GAMMA, 1.8V 1.8V Gamma on Main
122 PF_15V_GAM 15.5V_GAM SH&PANEL, 15.5V 15V Gamma on Main
73 PF_5VSI 5VSI HDMI, 5V 5V HDMI on Main
166 PF_3.3VSI 3.3VSI HDMI, 3.3V 3.3V HDMI&BUFFER on Main
167 PF_1.2VS1 1.2VS1-1 HDMI, 1.2V 1.2V HDMI on Main
220 PF_3.3V_AD 3.3V_AD ADC, 3.3V ADC(ISL51002)&BUFFER
13 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/AV
121 PF_9V_LNS 9V_LNS LENS, 9V 9V Lens Drive
71 PF_15V_LNS 15V_LNS LENS, 15V 15V Lens Drive
245 PF_S3.3V S3.3V MAIN, S3.3V S3.3V on Main
168 PF_S5V S5V MAIN, S5V S5V ADC on Main
226 PF_S5V_MAIN S5VL MAIN, S5VL 5V on Main
204 PF_12V_FILTER 12V_ID, 12V AUDIO&ID 12V AUDIO SW, LAMP ID Drive
104 FAN_PLS[0] FN901 Power & Fan Lock FN901, FN901 Power & Fan Lock
222 FAN_PLS[1] FN902 Power & Fan Lock FN902, FN902 Power & Fan Lock
224 FAN_PLS[2] FN903 Power & Fan Lock FN903, FN903 Power & Fan Lock
107 FAN_PLS[3] FN904 Power & Fan Lock FN904, FN904 Power & Fan Lock
225 FAN_PLS[4] FN905 Power & Fan Lock FN905, FN905 Power & Fan Lock
192/
191/
252
FAN_PLS[5/6/7]
FN906, FN907, FN908 Power & Fan
Lock
FN906,907,908
FN906, FN907, FN908 Power & Fan
Lock
251/
237/
216
FAN_PLS[8/9/10]
FN909, FN910, FN911 Power & Fan
Lock
FN909,910,911
FN909, FN910, FN911 Power & Fan
Lock
IC301
PW392
69 PF_1.2V_FRT S1.2V_FRT_INT SWFPGA, 1.2V FPGA 1.2V
343 FILTER_DET Filter Cartridge Detection FILTER, DET Filter Cartridge Detection
IC5201
-- FPGASW CONFIG FPGACong SWFPGA, ERROR SWFPGACongError
67, 8
SHUTTER_POSI1
SHUTTER_POSI2
Shutter Operation SHUTTER, ERROR Shutter Operation Error
-- IRIS EEROR Iris Operation IRIS, ERROR Iris Operation Error