Power Failure Detection System; Error Information Table - Sanyo PDG-DHT8000L Service Manual

Troubleshooting

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 "PFAIL_S5V, "FAN_ERR1", etc. are connected
to the power supply lines and fans. When the failure occurs, IC301<SYSTEM CONTROL> receives an error informa-
tion through the ICs<IC5201, IC1801, etc.> and then the operation of power and ballast will be stop by the control
signals, "DC_ON", "BALLAST_AC1", "BALLAST_AC2".

Error information table

Ic Pin Signal Name
400 PFAIL_DVI
356 PFAIL_-5V
358 PFAIL_S5V
399 PFAIL_LENS
398 PFAIL_5V
397 PFAIL_POWER
IC5201
310 PFAIL_AD
311 PFAIL_MOTHER
312 PFAIL_NIOS
313 PFAIL_KS
IC1801 64 PFAIL_FPGA
305 FAN_ERR1
306 FAN_ERR2
307 FAN_ERR3
IC5201
308 FAN_ERR4
309 FAN_ERR5
205 FILTER_DET
198 FILTER_COUNT
IC4401
307 LAMPCONTROL
342 SHUTTER_POSI1
343 SHUTTER_POSI2
68 THERM
179 PRESS_SENS
IC301
250/33 PW_SDA4/PW_SCL4
32/115 PW_SDA5/PW_SCL5
IC401 157 CW1_INDEX
IC1401 280 CW2_INDEX
connection Lines error Information
S1.2VSI, S3.3VSI HDMI,
S-5V MAIN,
S5V, S3.3V_LVDS,
MAIN,
S5V_PW, S9V
15V_LENS, 9V_LENS LENS,
5V. 3.3V MAIN,
Power(DC), PFC SAFETY-SW, 12V
3.3V_AD, 1.8VD_A/D,
A/D,
1.8VA_A/D
S5VMI, S3.3V, S2.5V,
S1.2V, S9.6V, S5V_AV, MOTHER, 3.3/1.2V
3.3V_LAN
S3.3V_NIOS,
S2,5V_NIOS, NIOS,
S1.2V_NIOS
S3.3V_KS, S2.5V_KS,
PWKS,
S1.8V_KS
S3.3V_FPGA,
S3.3V_FPGA_2, FPGA,
S1.2V_FPGA
FN905 FAN LOCK FAN1,
FN904, FN906 FAN
FAN2,
LOCK
FN903, FN907, FN909
FAN3,
FAN LOCK
FN901, FN902 FAN
FAN4,
LOCK
FN908 FAN LOCK FAN5,
SW1891 FILTER,
FILTER_COUNT FILTER, TIME OUT
LAMP_CONT (Formatter)
DDP,
LAMPCONTROL (Main)
SHUTTER_POSI1
SHUTTER, ERROR
SHUTTER_POSI2
TH901 PELTIER, ERROR
PRESS_SENS PRESSURE, ERROR
PW_SDA4/PW_SCL4 SLOT1,
PW_SDA5/PW_SCL5 SLOT2,
CW1_INDEX
WHEEL,
CW2_INDEX
-135-
Failure Area
3.3/1.2V S6V1, S1.2VSI, S3.3VSI on Main
-5V S-5V line on Main
S6VNIOS, S6V2, S9.6V, S5V, S3.3V_LVDS,
S5V
S5V_PW, S9V, S6VPW lines on Main
15/9V 15V_LENS, 9V LENS lines on Main
5/3.3V 6V_SW, 5V, 3.3V lines on Main
12V on Power(DC), SW902, SW903,
SW904, PFC board
S6V2, S3.3V_AD, 1.8V_AD, 1.8VA_AD,
3.3/1.8V
lines on Main
S6V1, S5VMI, S3.3V, S2.5V, S1.2V on
Mother or AV
S6VNIOS, S3.3V_NIOS, S2.5V_NIOS,
3.3/1.2V
S1.2V_NIOS lines on Main
S6VKS, S3.3V_KS, S2.5V_KS, S1.8V_KS
3.3/1.8V
lines on Main
S3.3V_FPGA, S3.3V_FPGA_2,
3.3/1.2V
S1.2V_FPGA, 6VFPGA lines on Main
ERROR Fan lock on FN905, cooling for CW
Fan lock on FN904, FN906, cooling for
ERROR
lamps
Fan lock on FN903, FN907, FN909, cooling
ERROR
for power, ballast, optical
ERROR Fan lock on FN901, FN902, exhaust fans
ERROR Fan lock on FN908, cooling for DMD
DET Filter Cartridge Detection, SW1891
Filter Motor Error
ERROR Formatter board
Shutter unit
TH901 on Peltier Device
Pressure Sensor, IC8872
ERROR SLOT 1
ERROR SLOT 2
ERROR Color Wheel, Formatter