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Semp Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
SEMPLC4245F
5v weak, pulsing.Clamper circuitRb905 cb903Davi.sls
SEMP TOSHIBA LC3246(B)WDA
TV does not tune channels or has difficulty tuning air channelsCeramic smd capacitors c114,c116 next to ci n100Eletrônica JM/Júlio
SEMP TCL32S6500S
RT41PB-AG
TV with sound without imageBurned out led (1 led)Replace of the complete, new bar kit and chain reduction. I replaced the two power supply resistors with just one whose value was 0.144ma.Cesar762
SEMP 2134
SK11
Turns on normally when increasing the screen, a horizontal line appears on the screen and keeps restarting.R333 eo c636Replace the 220 man r333 and the 1000μF16v c636 tv working perfectly!Sinailson
SEMP1453 O. AV
U19
After a while the image starts to shake and closes the verticalR336. 180rJust replace and run for the hug, I'm grateful for the help I've already hadRogério TV
SEMP TOSHIBA 48L2400
Inoperative without standbyNb905Replace the ci nb905 fsl206mr and just run for the hug.Sinailson
SEMP TOSHIBADL4061 A
TV turns on normally and then doesn't turn off or keeps turning on and off without stopping.U100, q121 e q122Replace or solveAlessandro Barcelos
SEMPLE3264 (B) W
TV sometimes turns on sometimes it just keeps flashing red ledCold welding at the power supplyResolderDinho
SEMP TCL43S615
The TV turns on, the backlight turns on, the screen stays dark blue but no image appears.Check if the 12v voltage on the ads501 smd diode is below 12vAuterated 1m2Ω smd ar523 resistor. May God bless you all!Eletrônica JM/Júlio
SEMP DL3244(A)W
Turns off instantly out of nowsound after some time, first it takes a long time, then it turns off more frequently, faster. After presenting a plop/noise in the soundAs I changed the c.i fr9889 that regulates the "core" power supply (1.2 volts) for the processor, I forgot to get the position of the componentFr9889 next to the processor heatsink. This regulator supplies 1.25 volts and was supplying 1.34v, which caused the TV to turn off. After changing it, it got 1.27v and was perfect.MIGUELTV
SEMP48L2400
Any problem with little or no back lightR765 = 100kR765 = 100k
SEMP1452
I'm soundI changed all the electrolytic capacitors, they were all good, it only resolved after I removed the q611Remover q611
SEMPTV2134(C)SL
Character and image duplicating noise in serrated deflection coilJust place the tip of the screwdriver that has a magnet on top of the L 302 coil and you will see the changeTake a dvd lens magnet and stick it on top of the reel, which solves the problem from the factory it comes with this magnet but over time it falls offRONY ITAPORANGA PB
SEMP32S5300
LEDs turning on with weak intensity, with a burnt out LED symptom, voltage at the LED power supply output (connector) at 45v, must be at 65vDr01 diode shortedDr01 diode replacementClaudio Jorge Eckert Junior
SEMP TOSHIBALC4246FDA
Doesn't start. power supply with integrated inverter does not arm secondary.Rw910 de 100k/2w abertoReplacing the resistor and general preventative resoldering of the power supply.CARDOSO
SEMPLC4055(B)
Turns on the image for 1 second and turns off the image, the rest continues to workAfter checking the pfc voltages ok, +b 24v ok and inerter on ok and brightness control everything ok but the inverter circuit continued to trip 1 to 2 seconds after switching onAfter removing the inverter PCI, we tested the leakage to the housing on the lamp terminals, the same ones that fit the inverter PCI, then we scraped them all and reassembled them later, tsound is a video of the repair summarized on the channel directly on the defect, link: https://youtu. be/i7fax9gid_gYouTube Direto no defeito
SEMP TOSHIBADL4077I
It doesn't turn on, it just keeps the green LED flashingCold solder on logic boardResolder the entire board underneathDeo Eletrônica (81)98904-0186
SEMPTV 1451NAV
U18
Noise in the throat when turning on with the panel reducing and turning off sometimes it turns on after a few attemptsI replaced q865 smd photo coupled and c865 10nfReplace of other componentsRogério TV
SEMP TOSHIBADL4844(A)F
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League. STBY LED lights up, does not accept C.R. commands. and keyboard.N806 shorted and n804 altered, en pin less than 2.4v, normal 3.1v or more, depends on the circuit.The components n806 and n804 were replaced.Cesar762
SEMPDL4844(
League. STBY LED lights up, does not accept C.R. commands. and keyboard.N806 shorted and n804 altered, en pin less than 2.4v, normal 3.1v or more, depends on the circuit.Replace of n806 and n804.Cesar762