-79-
Troubleshooting
Detection of Power failure
Projector provides a protection circuit to prevent the secondary failure when the power failure, fans failure or tem-
perature failure occurs on the projector. The power failure detection lines "PF_3.3V_AD", "PF_3.3V_KS", etc. are
connected to the main power supplies. When the failure occurs, IC301<SYSTEM CONTROL> receives an error infor-
mation through IC5201<FPGA>, IC4801 <I/O Expander> 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
112 PF_3.3V_AD D3.3V_AD AD, 3.3V 3.3V AD on Main
156 PF_3.3V_KS 3.3V_KS KS, 3.3V 3.3V Keystone on Main
157 PF_2.5V_KS 2.5V_KS KS, 2.5V 2.5V Keystone on Main
57 PF_1.8V_KS 1.8V_KS KS< 1.8V 1.8V Keystone on Main
152
PF_3.3V_GAM 3.3V_GAM GAMMA, 3.3V 3.3V Gamma on Main
151 PF_2.5V_GAM 2.5V_GAM GAMMA, 2.5V 2.5V Gamma on Main
251
PF_1.8V_GAM 1.8V_GAM GAMMA, 1.8V 1.8V Gamma on Main
55 PF_5VS1 S5VI DVI, 5V 5V DVI on Main
191 PF_3.3VS1 S3.3VSI DVI, 3.3V 3.3V DVI on Main
56 PF_1.2VS1 S1.2VSI DVI, 1.2V 1.2V DVI on Main
59 PF_S3.3V S3.3V MAIN. S3.3V S3.3V on Main
150 PF_15.5V_GAM 15.5V_GAM GAMMA, 15.5V 15.5V Gamma on Main
216
PF_5V_PJ PJNET&3.3V PJNET, 5V 5V Network Box
237
PF_9V_LNS 9V_LNS LENS, 9V 9V Lens Drive
215
PF_15V_LNS 15V_LNS LENS, 15V 15V Lens Drive
236
PF_6V_MAIN 6V MAIN, 6V 6V on Main
235 PF_12V 12V AUSIO SW, 12V 12V Audio SW
234 PF_12V_FILTER 12V FILTER FILTER, 12V 12V Filter Motor Drive
232
PF_S-6V_AV S-6V AV, S-6V S-6V on Main/AV
212
PF_FN904 FN904 Power & Fan Lock FN904 13V FN904 Power & Fan Lock
211 PF_FN902 FN902 Power & Fan Lock FN902 13V FN902 Power & Fan Lock
147 PF_FN901 FN901 Power & Fan Lock FN901 13V FN901 Power & Fan Lock
227
PF_FN905 FN905 Power & Fan Lock FN905 13V FN905 Power & Fan Lock
226
PF_FN906
FN906, FN907, FN908 Power & Fan
Lock
FN906&7&8 13V
FN906, FN907, FN908 Power & Fan
Lock
281
PF_FN903 FN903 Power & Fan Lock FN903 13V FN903 Power & Fan Lock
183 PF_FN909
FN909, FN910, FN911 Power & Fan
Lock
FN909&10&11 13V
FN909, FN910, FN911 Power & Fan
Lock
185 PF_12V_AMP 12V_AMP ADUIO AMP, 12V 12V Audio Amp.
IC4801
TE7783
61 PF_S1.2V_FRT FPGA 1.2V SWFPGA, 1.2V 1.2V SW FPGA
62
PF_S5V_MAIN S5V MAIN, S5V S5V on Main
63 PF_5V_MAIN 5V MAIN, 5V 5V Main
64 P_FAIL_LAN 3.3V LAN LAN, 3.3V 3.3V LAN
IC301
PW392
343 FILTER_DET Filter Cartridge Detection FILTER, DET Filter Cartridge Detection
388 FILTER_COUNT Filter Motor MOTOR, TIMEOUT Filter Motor
IC5201
-- FPGASW CONGIG FPGA Config FPGASW, ERROR SWFPGA Config Error
126,
168
SHUTTER_POSI1
SHUTTER_POSI2
Shutter Operation SHUTTER, ERROR Shutter Operation Error