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SEMP Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
SEMPTV2123(0)FSU-19
Black spots appearing on the left side of the screenR442Put a 4.7r resistor in place of the r442 and the TV will work normally. God be praised!Sinailson furtado
SEMPTV2998
LEM5
Works with a reduced screen, like a square in the middle, 10 inch screenSwap rd04 next to dodo qd01DJ PITUKA
SEMPTV2050MAV
U17
Does not turn on only on standbyReplace diodo zener d431 ,9v1DJ PITUKA
SEMPTV2998
Does not turn on, only on standbyReplace zener diode d432, 16v in the secondary power supplyDJ PITUKA
SEMPTV2051NAV
Side black stripeD320 shorted, 1n4148ReplaceDj Velk
SEMP2134
SK-11
When connecting to the socket, the LED would blink and the power supply would not start. The power supply capacitor would be overloaded, the secondary voltage would dropR-604 of 2k2 close to the photocouplerR-604Elet.santos Jatobá Maranhão
SEMP1450
No charactersC 902 on the kinescope plateReplace the sameCassiano
SEMP TOSHIBATV2999
LEM6
Missing width on both sides.Cold solder not transistor qd01ResolderPaulo Tokida
SEMPTV2934BSL
SK11
It doesn't turn on, just the relay hits.Change r248, 3k3, on the micronas sideDJ PITUKA
SEMP TOSHIBALC3255 (A)
TV turns on without pictureIn my case, 5 bulbs burned outReplacing burnt out light bulbsjose fernandes dos passos
SEMPTV1454(P)SL
Does not turn on making noise at the power supplyR509=2k4 changed measuring 4kReplace it with another and run to anotherAntonio Carlos (Eletrônica Renascer)
SEMPTV2934CS
SK11
Tartar effect image and does not take the remote controlChange r325 56k and change the remote sensorDJ PITUKA
SEMP TOSHIBATV2134(C)SL
SK11
Tv with green image with retrace linesChange the tube (kinescope)Marcleo
SEMPTV2122(O) FS
U19
White lines at the top of the screenC308 of 100mf by 35v near the vertical ciReplace of the sameAssisTec
SEMPTV2122(O) FS
U19
Low sound even at maximum volumeC613 and c635 of 220mf by 25vReplace of the sameAssisTec
SEMP 2934 C SL
The LED doesn't even light up when it's completely offR602 replace without fear god be praisedRafael
SEMPTV2134BSL
It doesn't turn on, the relay hits as if it were going to turn on, but it doesn't turn onReplace zener diode zd202, 5v6 on the micronas sideDJ PITUKA
SEMP TOSHIBA LE2458(A)F
Stopped, with LED alternating between green and red.Mosfet me15n10-g in position v701 "bottom of the board".... diode sk3b in position vd751, top of the board. This diode is a schottky barrier 3a/100v, failing that I put an sb3200 3a/200v. good luck .This email address is being protected from spambots. You need JavaScript enabled to view it.
SEMPTV2934
Inoperative stand bay ledy does not turn on and the power supply capacitor is overcharging!R602Replace the 68k r602Sinailson furtado
SEMPTV2934
It doesn't turn on, it just makes a noise at the power supply as if it were the horizontal outlet that had failedD302Replace the d302 and the TV will work normally. God be praised!Sinailson furtado