Sanyo PLC-WTC500AL, Service Manual

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