Sanyo PLC--XP200L, Service Manual

Page: 77 / 154

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