Power Failure Detection System; Error Information Table - Christie LX700 Service Manual

Chassis Description

Power failure detection system

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_15V_LNS", etc. are con-
nected to the main power supplies and fans. When the failure occurs, IC301<SCALER> receives an error information
through IC5201<FPGA>, IC4801 <I/O Expander> and then outputs the signal "PFC_SW_EX" from pin 32. The signal
"PFC_SW_EX" is supplied to power supply circuit as the signal "PFC_SW" via IC1871 <Buffer> to control the power
supply operation.

Error information table

IC Pin
59
112
58
156
157
57
56
191
55
152
151
251
52
150
216
IC5201
237
FPGA
215
236
235
234
233
232
185
212
211
147
183
227
201
226
202
61
IC4801
62
TE7783
63
343 FILTER DET
IC301
388 MOTOR_POSI
PW392
281 PRESS_SENS
IC5201 - -
IC4401 - -
292 SHUTTER_POS1
IC4401
391 SHUTTER_POS2
LX700 Service Manual
Signal Name Connection Lines
PF_3.3V_DVI 3.3V_DVI
PF_3.3V_AD 3.3V_AD
PF_1.8V_AD 1.8V_AD
PF_3.3V_KS 3.3V_KS
PF_2.5V_KS 2.5V_KS
PF_1.8V_KS 1.8V_KS
PF_3.3V_PIC 3.3V_PIC
PF_2.5V_PIC 2.5V_PIC
PF_1.2V_PIC 1.2.V_PIC
PF_3.3V_GAM 3.3V_GAM
PF_2.5V_GAM 2.5V_GAM
PF_1.8V_GAM 1.8V_GAM
PF_3.3V_SH 3.3V_SH
PF_15.5V_GAM 15.5V_GAM
PF_5V_PJ PJNET_5V
PF_9V_LNS 9V_LNS
PF_15V_LNS 15V_LNS
PF_6V_MAIN S6V
PF_3.3V_MAIN S3.3V
PF_12V_FILTER 12V
PF_S5V_AV S5V_AV
PF_S-6V_AV -6V
PF_25V_4LCD 25V
PF_FN904 FN904 POWER & LOCK
PF_FN902 FN902 POWER & LOCK
PF_FN901 FN901 POWER & LOCK
PF_FN908 FN908POWER & LOCK
PF_FN905&FN906 FN905,FN906 POWER & LOCK
PF_FN903 FN903 POWER & LOCK
PF_FN907 FN907 POWER & LOCK
PF_9V_AUDIO 9V AUDIO
PF_S1.2V_FRT S1.2V_FRT
PF_S5V_MAIN S5V
PF_5V_MAIN 5V
FILTER CONDITION DETECT
MOTOR ERROR DETECT
PRESSURE SENSOR DETECT
-
-
SHUTTER POSITION SW
Error Information
DVI,
AD,
AD,
KS,
KS,
KS,
FPGA,
FPGA,
FPGA,
GAMMA,
GAMMA,
GAMMA,
SH,
GAMMA,
PJNET,
LENS,
LENS,
MAIN,
MAIN,
FILTER,
AV,
AV,
YE,
FN904,
FN902,
FN901,
FN908,
FN905&6
FN903,
FN907,
AUDIO,
SWFPGA,
MAIN,
MAIN,
FILTER,
MOTOR, TIMEOUT
PRESS,
FPGASW, CONFIG
FPGAFINE, CONFIG
SHUTTER, ERROR
Rev. 1 (11/08)
-77-
Failure Area
3.3V DVI Equalizer, IC8001
3.3V A/D, IC2201
1.8V A/D, IC2201
3.3V Keystone, IC2301
2.5V Keystone, IC2301
1.8V Keystone, IC2301
3.3V PIC FPGA, IC4401
2.5V PIC FPGA, IC4401
1.2V PIC FPGA, IC4401
3.3V Gamma 3.3V, IC401
2.5V Gamma 2.5V, IC401
1.8V Gamma 1.8V, IC401
3.3V S&H 3.3V, IC501-IC1561
15.5V Gamma 15V, IC401
S5V PJ-NET 5V
9V Lens Drive 9V
15V Lens Drive 15V
6V Main S6V
3.3V Main S3.3V
12V Filter Drive 12V
S5V AV S5V
S-6V AV S-6V
25V Optical Filter Drive Power
13V FN904 Power & Lock
13V FN902 Power & Lock
13V FN901 Power & Lock
13V FN908 Power & Lock
13V FN905&FN906 Power & Lock
13V FN903 Power & Lock
13V FN907 Power & Lock
9V 9V AUDIO
1.2V SW FPGA1.2V, IC5201
S5V Main S5V Power
5V Main 5V Power
DET Filter Cartridge is not installed
Filter Motor Error
ERROR Pressure is less than 500mmHg
IC5201 Configuration Error
IC4401 Configuration Error
Shutter Operation Error
020-000120-01