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SEMP Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
SEMPSD8071HDMI
Doesn't workDaughterReplace the sameZEZINHO
SEMPTV2016NMS
U18
Noise at power supply (as if escaping)Power supply filter capacitorSeparated tsoundMiojex
SEMP TOSHIBA1483FAV
Lack of colorMicroprocessoreletronica barbosa
SEMP TOSHIBATV1454 -0 SL
Vertical closed 7 centimeters with lines of retractions in the middle of screenC301 and resolder or q421 7805 of 5vELETROCLAUDIO AGUAS BELAS
SEMP TOSHIBATV1415NM
U18
Burning horizontal outletWide capacitor 6n7/1600v.Changing the width capacitor and not finding the horizontal outputeletronica fernandes
SEMPTV 2121NFS
U18
Dark screen with normal sound (socket)Changing the kinescope socketsaulo figueiredo
TV SEMP TOSHIBA2998 E 2987
Matte white lines at the top of the screen...C 308- 100x35Perse
TV SEMP TOSHIBA2998 E 2987
Protection acting...IC 301. Horizontal output.Perse
TV SEMP TV2999-KMS
LEM7)
Remote control doesn't work, I already changed the infra receiver and nothing.The defect has been resolved. it was the microBF.COLATINO
TV SEMP TOSHIBA F-74/359A
U 9
TV always has the problem of turning off after about 3 minutes.I changed the vertical outlet, changed the deflector, tested the horizontal. When the screen is set to normal, it turns off, when I set it halfway, it doesn't turn off, +b normal, I don't have the schematics for it, and when it turns off, it only turns on if I remove the plug from the socket.I tested the c902 on the screen with the capacimeter and it was good, but I was in doubt and replaced it, and the problem was solved.BF.COLATINO
TV SEMP TOSHIBA 2958 GFS FS5
LEM 7
Always 2958 gfs fs5 lem 7 dark screen, screen does not work.C902, even though I measured it and said it was good, it was bad, I just had to change it and run for the hug.BF.COLATINO
TV SEMP TOSHIBA2157
U17
On this television "tv semp toshiba 2157u17" I came across a problem in the "menu" of the device's functions, through the control I only have access to "function and clock" and the others, such as "image, audio, adjust" I have no access, nor Even going to the TV panel to access it, I can't do it.Hotel mode determines the maximum volume the TV can reach, fixes the brightness, contrast and color settings and determines which channel it will always turn on. To access this mode, press the “mute” button on the control and observe the “sound off” indication on the screen. then press and hold the “mute” key and press the “ch-” key on the TV panel for 5 seconds until “hotel mode on” appears. To exit hotel mode, we do the same thing until “hotel mode off” appears.I disabled hotel mode and thus gained access to all of the device's menu functions. resolved.BF.COLATNO
TV SEMP TOSHIBATV2159
Vertical closing at the bottom and folding.Ci does everything wrongReplaced and resolved.BF.COLATNO
TV SEMP TOSHIBATV 2091KV
U-15
Star TV, when turned on, turns on the LED and then goes out, the power supply voltage is 0 V.The cause of the defect was the vertical output ci. tip to discover this defect: with the TV turned off, discharge the power supply's input electrolytic capacitor (the big one that filters the input voltage, normally 170v) then place the tip of the voltmeter from +b general to ground, place the voltmeter on the voltage scale 250v, keep an eye on the voltmeter and turn on the TV. In this case, you will see that when you turn on the TV, the voltmeter will show a voltage of 113v and quickly drops to 0v, this means that the TV worked and then went into protection, normally It is the vertical exit or the flyback that makes the TV depart and go into protection.BF.COLATNO
TV SEMP TOSHIBA2159NFS
U-18
This TV with the sound popping up has audio and it has no quality as if it were a module connected without the remote, this TV is serious, I changed an output, the output is powered by 14v.Removing the q 906 from the trc board the sound normalized spot blanking transitionBF.COLATNO
TV SEMP TOSHIBA 2084FAV
U-11
Tv always 2084 fav does not come out of standby. this tv triggers the power supply but does not have high voltage, I found 9v on pin 31 and pin 32 1.8v on q402 c=40v b=0.3 and c=40v and +b is normal .I went to check the horizontal output and to my surprise it showed that it was running only on the x10k scale, replacing it solved the problem.BF.COLATNO
TV SEMP TOSHIBA2999JMS
This TV wouldn't turn on after changing the regular one 3 times, a new one, cracked, I got a good one and put it in, but the tr q 840 is getting very hot, and it won't turn on, the stand by LED is on but it doesn't startOn the rg 840 transmitter it was 4.3 volts, following the line I arrived at q 841 and after the change the device turned on and worked perfectly.Conclusion q 801 and q 841BF.COLATNO
TV SEMP TOSHIBATV 2157
U-17
This television has a dark image, I checked: the abl voltage and are correct, I also checked the hz output transformer circuit (tsh) are also correct.I replaced the "c902" capacitor with a new one and the image was good.BF.COLATNO
TV SEMP TOSHIBA1021E
It turns on but the frame is reduced and tsound are some colored lines at the bottom of the screenDeflector defectBF.COLATNO
SEMPTV-1495KM
U15
StopStrw 5753 power supply regulator open or broken. After the change, it remains stopped and tsound is no voltage on the secondary.R- 876 of 220r open, works on the primary power supply on pin 7 of the strw 5753 regulator. After changing the resistor, the TV was ok. Note: before changing the reg. Check for possible horizontal short.GEORGE PONTES