PDP-436SXE
107
5678
56
7
8
C
D
F
A
B
E
LED's
Flashing
Shutdown Operation Defective Assy
Cause for Shutdown
Points to check Possible defective parts
Remarks
Blue 1
Failure in communication
with the Panel-Drive IC
OB DIGITAL
Failure in the Panel-Drive IC or its peripheral circuit
SQ ASIC BLOCK, PANEL FLASH BLOCK
IC3401, IC3301
OB DIGITAL
Failure in writing in the Panel-Drive IC
IC3401, IC3301
Turn the power back on then check if the version can be read with the QS1 command.
Blue 2
Failure in communication
with the module IIC
(Check the SD
subcategory on the
Factory menu.)
OB DIGITAL
Failure in the EEPROM (4 K) or its peripheral circuit
MODULE UCOM BLOCK
IC3156
OB DIGITAL
Failure in the DAC IC or its peripheral circuit
MODULE UCOM BLOCK IC3157
AUDIO
Failure in the EEPROM(2K) or its peripheral circuit
AUDIO
IC3754
AUDIO
Failure in the Volume IC or its peripheral circuit
AUDIO
IC3753
Failure in an FPC or the periphery of the connector
Periphery of the FPC that connects between MA11 and D11
Check if the FPC is damaged or improperly connected.
Failure in a cable or the periphery of the connector
Periphery of the cable that connects between MA8 and A2
Check if the cable is damaged or short-circuited.
Blue 3 Failure in the DIGTAL
ASIC power supply
OB DIGITAL
Failure in the DC/DC converter
DIGITAL DD CON BLOCK U3601
Check if 3.3 V and 1.2 V are activated (not short-circuited).
OB DIGITAL Failure in the RST PANEL FLASH BLOCK
IC3302, IC3304
POWER SUPPLY
12-V power not booted POWER SUPPLY
Blue 4 Panel high temperature OB DIGITAL
Failure in a cable or the periphery of the connector
D24-TE1
Check if the cable is damaged, short-circuited, or disconnected.
PANEL SENSOR
Failure in the thermistor or its peripheral circuit
PANEL SENSOR
TH8601
Panel high temperature
Ambient temperature
Temperature detected by the sensor is 90°C or higher.
Blue 5 Failure in audio Speaker short-circuited Speaker terminals
Check if speaker cables are short-circuited inside the unit.
AUDIO Failure in the AMP IC AUDIO AMP
IC3751
Failure in an FPC or the periphery of the connector
Periphery of the FPC that connects between MA11 and D11
Check if the FPC is damaged or improperly connected.
Failure in a cable or the periphery of the connector
Periphery of the cable that connects between MA8 and A2
Check if the cable is damaged or short-circuited.
Blue 6
Failure in communication
with the module
microcomputer
OB DIGITAL
Failure in the module UCOM or its peripheral circuit
MODULE UCOM BLOCK
IC3151
Check for short-circuited/open communication line (TXD_MAIN/RXD_MAIN).
OB DIGITAL Failure in writing in the module UCOM MODULE UCOM BLOCK
IC5201
Failure in an FPC or the periphery of the connector
Periphery of the FPC that connects between MA11 and D11
Check if the FPC is damaged or improperly connected.
Blue 7
Failure in three-wire-serial
communication with the
main microcomputer
(
Check the SD subcategory
on the Factory menu.
)
OBE MAIN
Failure in the IF UCOM or its peripheral circuit
IFUCOM BLOCK
IC5002
Check for short-circuited/open communication line (TXD_IF/RXD_IF/CLK_IF/BUSY_IF/CE_IF/REQ_IF)
OBE MAIN
Failure in the MULTI IC or its peripheral circuit
MULTI BLOCK
IC7001, IC7002
Check for short-circuited/open communication line (TXD_IC3/RXD_IC3/CLK_IC3/BUSY_IC3/CE_IC3)
OBE MAIN Failure in writing in the MULTI IC
IC7001, IC7002
Blue 8 Failure in IIC
communication with the
main microcomputer
TUNER
Failure in the front end or its peripheral circuit
TUNER U4401
Check for short-circuited/open communication line (SCL_AIR/SDA_AIR)
Failure in the periphery of the connector Periphery of the TU1 and MA1 connectors
Check if the cable is improperly connected.
OBE MAIN
Failure in the AV_SW or its peripheral circuit
AV_SW BLOCK IC4801
Check for short-circuited/open communication line (SCL_AV3/SDA_AV3/SCL_AV/SDA_AV)
OBE MAIN
Failure in the RGB_SW or its peripheral circuit
RGB_SW BLOCK
IC4703
Check for short-circuited/open communication line (SCL_AV3/SDA_AV3/SCL_AV/SDA_AV)
TUNER
Failure in the MPX or its peripheral circuit
MPX
IC4401
Check for short-circuited/open communication line
(SCL_AV3/SDA_AV3/SDA_AV/SCL_AV)
OBE MAIN Failure in the 3.3 V-5 V conversion circuit MAIN_UCOM BLOCK
Q5201
OBE MAIN
Failure in the TXT UCOM or its peripheral circuit
TXT UCOM BLOCK IC5405 Check for short-circuited/open communication line (SCL_MA/SDA_MA)
OBE MAIN
Failure in the M-VDEC or its peripheral circuit
VDEC BLOCK IC6003 Check for short-circuited/open communication line (SCL_MA/SDA_MA)
OBE MAIN Failure in the ADC or its peripheral circuit ADC BLOCK IC6201 Check for short-circuited/open communication line (SCL_MA/SDA_MA)
OBE MAIN
Failure in the MA-EEP or its peripheral circuit
MAIN_UCOM BLOCK IC5202 Check for short-circuited/open communication line (SCL_EP/SDA_EP)
Blue 9
Failure in communication
with the main microcomputer
OBE MAIN
Failure in the main UCOM or its peripheral circuit
MAIN_UCOM BLOCK IC5206, IC5207
Check for short-circuited/open communication line (TXD_IF/RXD_IF/CLK_IF/BUSY_IF/CE_IF/REQ_IF)
OBE MAIN Failure in writing in the main UCOM MAIN_UCOM BLOCK IC5206, IC5207
Blue 10 Failure in the fan FAN
Failure in the fan motor or stoppage of
the fan caused by adherence of dirt
FAN
Failure in a cable or the periphery of the connector
MA12 Check if the cable is disconnected or improperly connected.
Blue 11 Unit high temperature
Use in a high ambient temperature
Ambient temperature
Temperature detected by the sensor is 65°C or higher.
Failure in the thermistor or its peripheral circuit
TH7601
Failure in a cable or the periphery of the connector
MA6-SR1
Check if the cable is damaged, short-circuited, or disconnected.
Blue 12
Failure in the digital
tuner
Note:
The unit will not
be shut off.
The log is recorded only.
DIGITAL TUNER
Failure in the system IC or its peripheral circuit
IC2000
Check for short-circuited/open communication line (TXD_DT/RXD_DT)
Failure in a signal-system flexible cable
or in the periphery of the connector
MA3-D1
Check if the flexible cable is damaged or improperly connected.
Failure in a power-supply-system cable
or in the periphery of the connector
PS3-D5
Check if the cable is damaged, short-circuited, or disconnected.
Blue 13 Failure in the MAIN
ASIC power supply
Failure in a cable or the periphery of the connector
D12-MA10
Check if the cable is damaged, short-circuited, or disconnected.
OB DIGITAL Failure in the DC/DC converter DIGITAL DD CON BLOCK
U3601
Check if 3.3 V and 1.2 V are activated (not short-circuited).
OBE MAIN Failure in the RST IC MAIN_UCOM BLOCK
IC5211, IC5212, IC5213
Check if 3.3 V, 1.8 V and 1.2 V are activated (not short-circuited).
POWER SUPPLY
12-V power not booted POWER SUPPLY
Shutdown diagnosis
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