Power Failure Detection System; Error Information Table - Sanyo PLC-XP200L 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 IC501<FPGA>, IC4801 <I/O Expander> and then outputs the signal "PFC_SW_EX" from pin 3. 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 Signal Name
59 PF_3.3V_DVI
11 PF_3.3V_AD
58 PF_1.8V_AD
156 PF_3.3V_KS
157 PF_.5V_KS
57 PF_1.8V_KS
56 PF_3.3V_PIC
191 PF_.5V_PIC
55 PF_1.V_PIC
15 PF_3.3V_GAM
151 PF_.5V_GAM
51 PF_1.8V_GAM
5 PF_3.3V_SH
150 PF_15.5V_GAM
16 PF_5V_PJ
IC501
37 PF_9V_LNS
FPGA
15 PF_15V_LNS
36 PF_6V_MAIN
35 PF_3.3V_MAIN
34 PF_1V_FILTER
33 PF_S5V_AV
3 PF_S-6V_AV
185 PF_5V_4LCD
1 PF_FN904
11 PF_FN90
147 PF_FN901
183 PF_FN908
7 PF_FN905&FN906
01 PF_FN903
6 PF_FN907
0 PF_9V_AUDIO
61 PF_S1.V_FRT
IC4801
6 PF_S5V_MAIN
TE7783
63 PF_5V_MAIN
343 FILTER DET
IC301
388 MOTOR_POSI
PW39
81 PRESS_SENS
IC501 - -
IC4401 - -
9 SHUTTER_POS1
IC4401
391 SHUTTER_POS
connection Lines
3.3V_DVI
3.3V_AD
1.8V_AD
3.3V_KS
.5V_KS
1.8V_KS
3.3V_PIC
.5V_PIC
1..V_PIC
3.3V_GAM
.5V_GAM
1.8V_GAM
3.3V_SH
15.5V_GAM
PJNET_5V
9V_LNS
15V_LNS
S6V
S3.3V
1V
S5V_AV
-6V
5V
FN904 POWER & LOCK
FN90 POWER & LOCK
FN901 POWER & LOCK
FN908POWER & LOCK
FN905,FN906 POWER & LOCK
FN903 POWER & LOCK
FN907 POWER & LOCK
9V AUDIO
S1.V_FRT
S5V
5V
FILTER CONDITION DETECT
MOTOR ERROR DETECT
PRESSURE SENSOR DETECT
-
-
SHUTTER POSITION SW
-77-
error Information Failure Area
DVI, 3.3V DVI Equalizer, IC8001
AD, 3.3V A/D, IC01
AD, 1.8V A/D, IC01
KS, 3.3V Keystone, IC301
KS, .5V Keystone, IC301
KS, 1.8V Keystone, IC301
FPGA, 3.3V PIC FPGA, IC4401
FPGA, .5V PIC FPGA, IC4401
FPGA, 1.V PIC FPGA, IC4401
GAMMA, 3.3V Gamma 3.3V, IC401
GAMMA, .5V Gamma .5V, IC401
GAMMA, 1.8V Gamma 1.8V, IC401
SH, 3.3V S&H 3.3V, IC501-IC1561
GAMMA, 15.5V Gamma 15V, IC401
PJNET, S5V PJ-NET 5V
LENS, 9V Lens Drive 9V
LENS, 15V Lens Drive 15V
MAIN, 6V Main S6V
MAIN, 3.3V Main S3.3V
FILTER, 1V Filter Drive 1V
AV, S5V AV S5V
AV, S-6V AV S-6V
YE, 5V Optical Filter Drive Power
FN904, 13V FN904 Power & Lock
FN90, 13V FN90 Power & Lock
FN901, 13V FN901 Power & Lock
FN908, 13V FN908 Power & Lock
FN905&6 13V FN905&FN906 Power & Lock
FN903, 13V FN903 Power & Lock
FN907, 13V FN907 Power & Lock
AUDIO, 9V 9V AUDIO
SWFPGA, 1.V SW FPGA1.V, IC501
MAIN, S5V Main S5V Power
MAIN, 5V Main 5V Power
FILTER, DET Filter Cartridge is not installed
MOTOR, TIMEOUT Filter Motor Error
PRESS, ERROR Pressure is less than 500mmHg
FPGASW, CONFIG IC501 Configuration Error
FPGAFINE, CONFIG IC4401 Configuration Error
SHUTTER, ERROR Shutter Operation Error