Power Failure Detection System; Error Information Table - Sanyo PLC-XP100L 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 "S5V_AV_PF", "MAIN_-5V_PF", etc. are con-
nected to the main power supplies and fans. When the failure occurs, IC801<SH3, SYSTEM CONTROL> receives
an error information through the IC4801<I/O EXPANDER> and then outputs the signal "PFC_SW_CPU" from pin 186
to stop the power supply.
The power failure detection signals are sent to IC4801<I/O EXPANDER> and then sent to IC801<SH3, SYSTEM
CONTROL> .

Error information table

Ic Pin Signal Name
64 PJ_5V_PF
65 S-5V_AV_PF
66 S5V_AV_PF
67 MAIN_-5V_PF
68 M/A_PF
69 FAN_PF
70 SWF_1.V_PF
71 SWF_.5V_PF
7 VDEC_1.8V_PF
73 FPGA_1.5V_PF
IC4801 77 MAIN_6V_PF
78 MAIN_3.3V_PF
80 AD_3.3V_PF
8 VDEC_3_3V_PF
6 GAM_1.8V_PF
63 GAM_.5V_PF
86 GAM_3.3V_PF
88 GAM_13.5V_PF
56 LAMP_FAN_PF
47 9V_LNS_PF
46 15V_LNS_PF
166 FILTER_DET
IC801
9 FILTER_COUNT
33 PRESS_SENS
connection Lines error Information
PJ_5V PJNET,
-5V_AV AV,
S5V AV
MAIN_-5V MAIN,
M/A_9V M/A,
S16V, FAN LOCK FAN,
SWF_1.V SWFPGA1,
SWF_.5V SWFPGA1,
VDEC_1.8V VDEC,
FPGA_1.5V FPGA,
MAIN_6V MAIN,
MAIN_3.3V MAIN,
AD_3.3V ANALOG,
VDEC_3.3V VDEC,
GAM_1.8V GAMMA,
GAM_.5V GAMMA,
GAM_3.3V GAMMA,
13.5V GAMMA,
S16V, FAN LOCK LAMP FAN,
9V_LNS LENS,
15V_LNS LENS,
FILTER,
MOTOR, TIMOUT
PRESS,
-75-
Failure Area
S5V 5V line on Network Unit
S-5V S-5V line on AV
S5V S5V line on AV
S-5V S-5V line on Main
9V 9V line on Main
S16V line on Fan Drive stage
16V
FN901, FN90, FN904
1.V FPGA stage 1.V line
.5V FPGA stage .5V line
1.8V Video Decoder & A/D stage
1.V
6V 6V line on Main
3.3V 3.3V line on Main
3.3V PC A/D stage 3.3V line
3.3V Video Decoder & A/D stage
1.8V Digital Gamma stage 1.8V
.5V Digital Gamma stage .5V
3.3V Digital Gamma stage 3.3V
13.5V Panel Drive stage
S16V line on Fan Drive stage
16V
FN905, FN906, FN907, FN908
9V Lens Motor Drive (Zoom/Focus)
15V Lens Motor Drive (Lens Shift)
DET Filter Cartridge is not installed
Filter Motor Error
ERROR Pressure Sensor IC4811