The document provides information on error codes indicated by the power LED blinking pattern on certain 2010 TV models. It describes the circuits monitored for each error code and lists the boards most likely to be causing the failure for that code, from most common to rarely. The purpose is to guide service engineers in troubleshooting by identifying the area of the fault to focus on for each error code.
The document provides information on error codes indicated by the power LED blinking pattern on certain 2010 TV models. It describes the circuits monitored for each error code and lists the boards most likely to be causing the failure for that code, from most common to rarely. The purpose is to guide service engineers in troubleshooting by identifying the area of the fault to focus on for each error code.
The document provides information on error codes indicated by the power LED blinking pattern on certain 2010 TV models. It describes the circuits monitored for each error code and lists the boards most likely to be causing the failure for that code, from most common to rarely. The purpose is to guide service engineers in troubleshooting by identifying the area of the fault to focus on for each error code.
The document provides information on error codes indicated by the power LED blinking pattern on certain 2010 TV models. It describes the circuits monitored for each error code and lists the boards most likely to be causing the failure for that code, from most common to rarely. The purpose is to guide service engineers in troubleshooting by identifying the area of the fault to focus on for each error code.
When an abnormality occurs in the unit, the “SOS Detect” circuit is triggered and the TV shuts down. Please follow this guide for the listed 2010 models
( TXP50S20B,TXP42/46S20B,TXP50X20B TXP37/42X20B ) this information to enable you identity the fault condition accurately. Please use this information with the block diagram and schematic diagrams.
1 The Purpose of the Blink Timing Chart
• All dealers should be reminded about the purpose of the power led blinking timing chart. The design of this chart is to provide guidance for the service engineer only. • Its contents enable the engineer to focus on the area of the Fault .Thus, reducing Time spent on basic fault finding. However, this dose mean the process of fault finding should be engaged .PCBs are not to be replaced at will. Please check the content list which suggests checks are made to supply rails and signal conditions. • If you are still unsure please contact Technical Support Department. Power LED Error Code Definition
POWER LED LIST OF BOARDS POSSIBLY CASUSING THE FAILURE
CONDITIONS TRIGGERING ERROR CIRCUIT MONITORED THE SHUTDOWN MOST CODE 2ND OCCASIONALLY RARELY COMMON Panel Information SOS Communication problem between the System CPU 1 BLINLK Panel Alarm SOS (IC8001) and the Panel CPU (IC9003) A ¤ ¤ ¤ Missing P15V • P15V is not been generated by the P board. 2 BLINKS P15V form the P board • P15V is been affected by one of the boards it is SC P SS A connected to (A short circuit of the P15V). Wrong diagnostic by the A board Missing P3.3V Reasons: • The A board is not generating the 3.3V 3 BLINKS P3.3V from the A board • The 3.3V is been affected by one of the C boards C1 or C2 A Panel ¤ or the Panel (A short circuit of the P3.3V). Wrong diagnostic by the A board Regulation issues with any of the voltages output from the Power Supply output 4 BLINKS voltages power supply. P A ¤ ¤ Wrong diagnostic by the A board Missing P5V Reasons: • The A board is not generating the 5V 5 BLINKS P5V from the A board • The 5V is been affected by the SC, SS, A, or C2 SC,SS C2 A ¤ board (A short circuit of the P5V). Wrong diagnostic by the A board An increase or reduction of the Energy Recovery Circuit output (MID). Open connection between connector A20 on the A board and SC20 on the SC board. 6 BLINKS SC Energy Recovery Circuit Open connection between any of the ribbon cables on the SC A ¤ C C boards and the A board. Open connection between the ribbon cable/cables interconnecting the C boards. Wrong diagnostic by the A board.
Slide 3 Power LED Error Code Definition
POWER LED LIST OF BOARDS POSSIBLY CASUSING THE FAILURE
CONDITIONS TRIGGERING ERROR CIRCUIT MONITORED THE SHUTDOWN MOST CODE 2ND OCASSIONALLY RAREALLY COMMON Missing Vsus. Abnormality of the scan circuit output, the 15V_F, the scn_pro, and Vscn circuit. Scan Drive Circuit and Loose or open Connection between the SC board and the 7 BLINKS Connection between the SC SC SM Panel A SM board (SC41, SC42, SC46). board and the SM board. Open or loose connection between connectors SC2/P2 Wrong diagnostic by the A board Defective panel Abnormality of the sustain drive circuit. Open or loose connection between the SS bd and FPCs Sustain Drive Circuit and from the panel (SS61, SS64, SS21,SS24, and SS58). 8 BLINKS Connection between the SS SS Panel A C2 Open or loose connection between connectors C10/C20 board and the Panel. Wrong diagnostic by the A board Defective panel Discharge Control Circuit 9 BLINKS (IC9300) Failure of IC9300 A ¤ ¤ ¤ Abnormalities of the F+15V. • Reasons: • The P board is not generating the F+15V • SUB Voltages are affected by the K board or by 10 BLINKS metal object present in the SD card slot.. SS SC A-P K Shorted Vsus (By the SS board or SC board). Shorted Vda (By the panel, C1, or C2 board) Wrong diagnostic by the A board.
