Power Failure Detection System; Error Information Table - Sanyo PLC-WTC500L 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 tem-
perature failure occurs on the projector. The power failure detection lines "P-FAIL_S5V", "P-FAIL_S3.3V", etc. are
connected to the main power supplies. When the failure occurs, IC301<SCALER> receives an error information
through IC5201<FPGA>, IC4801 <I/O Expander>, IC5281, IC5082, IC4081<I/O Expander> and then outputs the
signal "LAMP_DC_ON_EX" from pin 32. The signal "LAMP_DC_ON_EX" is supplied to power supply circuit as the
signal "LAMP_DC_ON" via IC1871 <Buffer> to control the power supply operation.

Error information table

Ic Pin Signal Name
5 P-FAIL_PJ
6 P-FAIL_S5V
7 P-FAIL_S-5V
9 P-FAIL_S1.2V_FRT
IC5281
M62320
11 P-FAIL_S1.8V_KS
12 P-FAIL_S2.5V_KS
IC4801
61 P-FAIL_S3.3V_KS
TE7783
6 P-FAIL_1.2V_HDMI
7 P-FAIL_RLY
9 P-FAIL_3.3V
IC5082
M62320
10 P-FAIL_5V
11 P-FAIL_15V
12 P-FAIL_1.0V
9 PFAIL_3.3V_AV
10 PFAIL_15V_AV
IC4081
M62320
11 PFAIL_S-5V_AV
12 PFAIL_9V_AV
115 FAN_MTR1
159 FAN_MTR2
157 FAN_MTR3
4 FAN_MTR4
63 FAN_MTR5
IC5201
114 FAN_MTR6
XC3S50A
3 FAN_MTR7
62 FAN_MTR8
226 SHUTTER_POSI1
201 SHUTTER_POSI2
- -
IC4801
61 P-FAIL_S3.3V_KS
TE7783
343 FILTER_DET
388 FILTER_COUNT
IC301
245 MIR1_DET
PW392
138 MIR2_DET
281 PRESS_SENS
connection Lines
5V_NET, 3.3V_NET
S10V, S5V_ALG, S5V
S-6V,
S1.2V_FRT_INT
1.8V_KS, S1.8VSK_KS,
S1.8VMPLL_KS, S1.8VAA_KS
2.5V_KS,
S2.5VAC_KS,S2.5VAB_KS,
S2.5VAA_KS
3.3V_KS, S3.3VAA_KS,
S3.3VAB_KS
1.2VSI
S12V_MIR, S12V_MIR1,
S12V_MIR2
3.3VSI,3.3V_AD,3.3V_ADA,
3.3V_ADD, 3.3V_ADX, 3.3V_ADR,
3.3V, 3.3V_PNL
5VSI, 5V_CTL,
9V_LNS_SHT, 15V_LNS_MIR,
12V_FIL, 15.5V_PNL, 15.5V_OP
1.0V
S3.3V_BUF
12V_AUD, 5V_AUD
S-5V
S9V_AV
FN901 Lock
FN902 Lock
FN903 Lock
FN904 Lock
FN905 Lock
FN906 Lock
FN907 Lock
FN908 Lock
SHUTTER POSITION SW
-
3.3V_KS, S3.3VAA_KS,
S3.3VAB_KS
FILTER CONDITION DETECT
MOTOR ERROR DETECT
MIRROR POSITION SW
PRESSURE SENSOR DETECT
-89-
error Information Failure Area
PJ_NET, S5/3.3V 3.3V, 5V on Network Joint
MAIN/AV, S10/5V S10V, S5V on Main, S5V on AV
MAIN, S-6V S-5V, S-6V on Main
FPGA, S1.2V S1.2V for FPGA on Main
KS, S1.8V S1.8V lines for Keystone on Main
KS, S2.5V S2.5V lines for Keystone on Main
KS, S3.3V S3.3V lines for Keystone on Main
HDMI, 1.2V 1.2V for HDMI on Main
RELAY, 12V S12V Relay on Main
MAIN, 3.3V 3.3V lines on Main
MAIN. 5V 5V lines on Main
15V, 12V, 9V lines on Main. Lens
MAIN, 15/12/9V
shift, Mirror and Panel voltage
GAMMA, 1V 1.0V line for Gamma on Main
AV, S3.3V S3.3V_BUF on AV
AUDIO, 15V 12V, 5V on Audio
AV, S-5V S-5V on AV
AV, 9V S9V on AV
FAN1, FANLOCK FN901 Power & Lock
FAN2, FANLOCK FN902 Power & Lock
FAN3, FANLOCK FN903 Power & Lock
FAN4, FANLOCK FN904 Power & Lock
FAN5, FANLOCK FN905 Power & Lock
FAN6, FANLOCK FN906 Power & Lock
FAN7, FANLOCK FN907 Power & Lock
FAN8, FANLOCK FN908 Power & Lock
SHUTTER, ERROR Shutter Operation Error
FPGASW, CONFIG IC5201 Configuration Error
KS, S3.3V S3.3V lines for Keystone on Main
FILTER, DET Filter Cartridge is not installed
MOTOR, TIMEOUT Filter Motor Error
MIRROR, ERROR Mirror Operation Error
PRESS, ERROR Pressure is less than 500mmHg