Semp TV Repair: Common Faults and Solutions.


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Search: Semp
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Semp Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
SEMPTV2958GFS
LEM7		Turns on and after some time turns offCold welding no tl401 next to saida horizontalResoldar tl401deusomar
SEMP TOSHIBATV 2996S
Doesn't tune into any channel, every now and then it comes and runs away.18k r-101 that feeds the 32 volts from the tuner fully open. replaced problem solved.FCMAIA
SEMPTV1451NAV
U18		Burning tshTroque c440 (6n5 1.6kAdrianChapadão
SEMPTV1497LM
U16		Dark image scrin does not workChange c 902 in tube socket (1k/2kv)Good luckFERNANDOCAMARQUES
SEMPTV-2090 [ H ]
Turn on then turn offDecreasing the screen it doesn't turn offC440/c442/c445NEU
SEMPTV1480E
The sound only appears with the volume at maximumRa17 3k3 there near the micro (changed for more)cezar el-shadday
SEMP2050MAV
U17		Normal power supply has voltage on the horizontal TV output does not workChange horizontal output changed tv works againorlando batista
SEMP2051 NAV
U18		Only tuned to a low band channelVerified lack of voltage on the 32 volt btl lineReplaced 32 volt protection zennerSérgio Takashi
SEMPTV1484FAV
U11		Does not tune uhfEnter service mode d, and change the turn option from 01 to 00Moraes SPTV
SEMPTV 1470
No soundSpeakerReplace and run for a hugfernando ferreira da silva
SEMPSD 7080VK
Doesn't start.Electrolytic c8 of 1000uf 16v at the power supply with little capacitance.Replace c8 with another one that looks great.ELETRONICA SÃO FRANCISCO This email address is being protected from spambots. You need JavaScript enabled to view it.
SEMP TOSHIBA1470E
Does not tune (no reception)R102 (18k)André Luiz
SEMPTV2981
LEM7		No contrastAbl lineR22715k openSchulz
SEMPTV1451
U18		Blinking LED power supply starts and returns to stand bySwap memoryMemory stuck, just replace and reprogramjoão paulo divisopolis/mg
SEMP LUMINATV-2090-I
Interruption of composite audio and video. in short or long periods.Bad soldering on ci-q-501 (8813cpng3rp2). Sometimes apparently the solders are good, but the problem is internal oxidation. Resolder all the pins, it's ok.CLÁUDIO RIBEIRO, TECNOSAT ELETRONICA, JATAÍ-GO.
SEMPTV2121NFS
U18		Vertical closedVoltages on pins 1 and 7 below specifiedQ-421(5v regulator) altered.samuel leite
SEMPTV 14
U13		Washed canvasEeprom memory
SEMP TOSHIBATV 2070
DeadLeaky 828 diodeAlvanyr. This email address is being protected from spambots. You need JavaScript enabled to view it.
SEMP1484-HAV
U13		Str-g5653 exploded and as soon as you put in a new one it explodes and rips the piece out immediately.Solution: replace the diode d-876(5v6), the resistor r-876(680r), and the capacitors c-875(470p) and c-876(1000p), for the capacitors you can put the disk replacements c-875( 471) and c-876(102) and replace the regulator q-801(str-g5653).samuel leite
SEMPTV 14A82
U8		TV with a dark or slightly greenish screen, this defect appears to be a defect in the ci q 501.Broken track that takes +9v to pin 52 of ci q 501Redo the track that connects pin 52 of ci q 501 to diode d 161. tv okGEORGE PONTES