-134-
Troubleshooting
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_5V", "PF_3.3V", etc. are connected to the
power supply lines and fans. When the failure occurs, IC801<SH3, CPU> receives an error information through the
ICs<I/O EXPANDER, IC5801, IC991, etc.> and then outputs the signal "IC_RESET_CPU" from pin 186 to stop the
power supply.
Error information table
Ic
Pin
Signal Name
connection Lines
error Information
Failure Area
IC5801
36
PF_VCC_FAN1
DCFAN_1
MAIN,
DCFAN1
DCFAN_1 line, IC781 on Main
37
PF_3.3V
3.3V
MAIN,
3V
3.3V line on Main
38
PF_-5V
-5V
MAIN,
-5V
-5V line on Main, AV
39
PF_.5VGAM
.5V_DI
MAIN,
.5VGAM
.5VGAM line on Main
40
PF_3.3VGAM
3.3V_DI/DDA
MAIN,
3.3VGAM
3.3V_DI/DDA line on Main
4
PF_MOTOR
S16V
MAIN,
K8E
S16V line on Motor Drive stage
43
PF_1.VPIC
1.VPIC
MAIN,
1.VPIC
1.VPIC line on Main
91
PF_TH
1V, 1VA
MAIN,
THERMO
SW90, Sw903, SW904, K8U
9
PF_1VA
1VA
MAIN,
1VA
1VA line on Main
93
PF_16V_M
16V_M
MAIN,
16VM
16V_M line on Main
94
PF_15.5VGAM
15.5V
MAIN, 15.5VGAM
15.5V line on Main
95
PF_S16V
S16V
MAIN,
S16V
S16V, S1V line on Main
97
PF_1.8VAD
A1.8V_AD, D1.8V_AD
MAIN,
1.8VAD
A1.8V_AD, D1.8V_AD line on Main
98
PF_PPLPIC
1.V_PCIA/D
MAIN,
1.VPIC
1.V_PICA/D line on Main
135
PF_FAN1
FN910 FAN LOCK
FAN,
FN910
Fan lock FN910
144
PF_3.3VAD
3.3V_AD, A3.3V_AD,
D3.3V_AD
MAIN,
3.3VAD
3.3V_AD, A3.3V_AD, D3.3V_AD line on Main
176
PF_K8G
K8G
MAIN,
K8G
Connection of K8G
177
PF_PFC4
PFC4
MAIN,
PFC4
PFC1- board
179
PF_5V
5VB
MAIN,
5V
5VB line on Main
180
PF_PLLFST
1.V_FRTA/D
MAIN,
PLLFST
1.V_FRTA/D line on Main
04
PF_FAN
FN911 FAN LOCK
FAN,
FN911
Fan lock FN911
08
PF_PFC3
PFC3
MAIN,
PFC3
PFC1- board
33
PF_S9V
S9.6V
MAIN,
S9V
S9.6V line one Main
34
PF_1.VFST
1.V_FRT
MAIN,
1.8VFST
1.V_FRT line on Main
35
PF_1.8VGAM
1.8V_DI/DDA
MAIN,
1.8VGAM
1.8V_DI_DDA line on Main
47
PF_VCCFAN
DCFAN_
MAIN,
DCFAN
DCFAN_1 line, IC7841 on Main
IC991
4
PF_3.3V_D
3.3V_D_AV
ERR,
IIC_DATA
3.3V_D_AV line on AV/DVI
5
PF_1.8V_D
1.8V_D_AV
ERR,
IIC_DATA
1.8V_D_AV line on AV/DVI
6
PF_3.3V_A
3.3V_A_AV
ERR,
IIC_DATA
3.3V_A_AV line on AV/DVI
7
PF_1.8V_A
1.8V_A_AV
ERR,
IIC_DATA
1.8V_A_AV line on AV/DVI
10
PF_3.3VFPGA
3.3V_FPGA_AV
ERR,
IIC_DATA
3.3V_FPGA_AV line on AV/DVI
11
PF_9V
9V_AV
ERR,
IIC_DATA
9V_AV line on AV/DVI, CGMother
1
PF_F5V/PF_5V
F5V_AV / 5V_AV
ERR,
IIC_DATA
F5V_AV, 5V_AV line on AV/DVI
IC8181
6
P_FAIL
5V
ERR,
IIC_DATA
5V line on AV/DVI, CGMother
IC8183
11
PF_.5VDVI
VDD.5_DVI
ERR,
IIC_DATA
VDD.5V_DVI line on AV/DVI
IC6
4
16V-PF1
16V_M
SUBPOW,
16VA
16V_M line on Power(DC)
6
FAN1-PF3
1VF1
SUBPOW, 1VF1
1VF1 line on Power(DC), RGB Fan Net
7
FAN-PF1
K66G FAN LOCK
FAN,
IN_FAN
Fan lock FN901, FN90, FN903, FN904,
K66G Connection
9
FAN1-PF5
1VF
SUBPOW, 1VF
1VF line on Power(DC)
10
FAN-PF
K66H/K66I FAN LOCK
ERR,
NET_FAN
Fan lock FN905, FN906
11
FAN1-PF7
1VF3
SUBPOW, 1VF
1VF3 line on Power(DC), Lamp Fan Net
1
FAN-PF3
K66F FAN LOCK
ERR,
EXT_FAN
Fan lock FN907, FN908, FN909, FN91,
FN913, K66F Connection
Power failure detection system
Summary of Contents for PLV-WF20
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