40L5400 TV Repair: Common Faults and Solutions.
Search: 40L5400
Results: 10
Results: 10
40L5400 Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SEMP TOSHIBA | 40L5400 | Does not turn on, standby LED flashes red | Voltages on the plate oscillating | Swap N801 and n806 both fr9889 | Higorot |
| TOSHIBA | 40L5400 | No voltage on the secondary, stand by LED off, and voltage on the capacitor 179v on the c901, on the c.i fan6755w voltage of 1.6v on pin 1 vin and 53v on pin 8 hv | Smd zener diode shorted VDW908 of 6v8 and the control c.i fan6755w after changing it returned normal. | Eliel | |
| SEMP | 40L5400 | TV flickering on standby and noise from speakers | Regulator (fr9889) in position n 806 (measure pin 1 voltage of 5 volts varying) | Replace the regulator in position n806 and run for the hug | DTEC_ELETRONICA |
| SEMP TOSHIBA | 40L5400 | Turns on the power, the stand-by LED flashes very quickly and it goes off... after that the TV doesn't turn on, it stays dead. | 5volt power supply absent in the n806 (fr9889), note that the 12volt power supply is 6.7v which is supposed to be low, but in stand-by the 12 volt power supply is a little more than 6v... ok .... | Swap n806 | MIGUELTV |
| SEMP | 40L5400 | Nothing lights up...stand by off | Fr9889 change the 2...vd803 (changed) | Fr9889 replace the 2 ...vd803 diode 1n4148 (replaced) after ready making noise in the speakers and it doesn't turn on | ANTONIO |
| SEMP TOSHIBA | 40L5400 | It turns on normally, the logo appears and returns to standby. | Several LEDs burned out, the complete set was replaced. problem persisted. | Defect in the 3.3v regulator 1117-33 silkscreen in this version n808 marking 2.9v. replacement made and problem resolved | |
| SEMP TOSHIBA | 40L5400 | Does not turn on, does not oscillate primary power supply. | Short circuit in the 6v8 smd zener diode in the primary power supply position VDW904. If the TV still doesn't turn on, also replace the CI PWM Fan6755W | rafaelmoraes99 | |
| TOSHIBA | 40L5400 | Doesn't start. standby off. | Ci n806 ,(fr9889)dc/cd , no output voltage on pin 3. | Ci replace. Thank you for the tip posted by assolini br. | Marotta |
| TOSHIBA | 40L5400/48L5400/55L5400 | Nothing turns on, no stand by LED, 5v stand by power supply absent, | On the board next to the processor tsound is ic code n806. fr9889 (dc/dc converter) had voltage on terminal 2 (input) that comes from the main power supply and did not have 5v on terminal 3 (output) | Replacing the aforementioned ic n 806 only solves the problem. | Assolini BR |
| TOSHIBA | 40L5400 | With sound and without image | Burned out leds | The LEDs were replaced and the backlight still did not turn on. Tsound was a lack of voltage in the board connector, next to the connector tsound was an open coil. After changing the coil, the TV started working normally again. | Gustavo Stefanon |