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Samsung Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
SAMSUNGUB32C5000
Dark screenCheck rd20 and rd55 on t-conA. Carreto
SAMSUNGUB32C5000
Dark screenIntermittent t-con voltages max17122 and max17121Replace icsA. Carreto
SAMSUNGPL51E490
Flashing standby, does not turn onBig blue pcs801 capacitor with cold solderingELETRÔNICA JAMBEIRO
SAMSUNG LN32C350D1M
Main board voltages pulsing and stand by LED onHeat the ic203 (aoz1031). If it stabilizes and the TV works, change the ci.Eletrônica Cecé, Brumadinho MG
SAMSUNGUN40ES6150 BN44-00502A
BN44-00502A
TV turns on, off and stays on stand-byCheck on psu (bn44-00502a) dm855.Replace diode and check for cold soldersJosé Félix
SAMSUNGUN43AU7700G
WriterInfinite loopRemove the infinite loopNelson Marinho
SAMSUNG PL42A450P1XZD
The relay hits when it turns on and after a few minutes the TV turns onChange without measuring cq815-845 and 806 in power supply bn44-00206aSANTOMEL
SAMSUNG LN26A330J1
Standby and beep only.Power supply board did not release voltages correctly.No bad components were found, I cleaned it with soap and water, after drying some bad tracks appeared, I made the repairs and the TV worked perfectly.Eduardo Schmidt
SAMSUNG PL42A450P1XZD
Hitting relayCapacitor cs823 47/100v 105º power supply bn44-00206aReplace without measuringSANTOMEL
SAMSUNGUN50RU7100
Restarting (screen symptom)Check c99 to c104 vconJunior - Tecnoprom
SAMSUNGUN32FH5203G
Does not turn on, standby onShort in the 5v line on the main boardIc201 shorted on the main board, replace it.NiloTech
SAMSUNGLB40B530
Turns on normally after turning off the backlightWeak lamps, with darkened cathodeALDEIATEC
SAMSUNGPL43F4000
Turns on has sound and video, but turns off.Welds with poor contact and especially in cs809s, redo the welds at the power supply.Ademir tc
SAMSUNGQN50Q60
Blue screen, restartingThe defect was in the v-com on the right side, I isolated some tracks of the flat that made the connection between the plates and the image returned to normal
SAMSUNGUN40J5200
BN41-02307
TV won't turn on main boardReplacement of the synchronous voltage regulator ic206 and the open fuse f202 on the main boardReplace regulator and fusemarcos moreira
SAMSUNGUN40J5200
L40MSF_FHS
TV doesn't turn onChange mosfet qm803, dm855c and dm861c the same, it's shortedReplace the mosfet and diodesmarcos moreira
SAMSUNGUN48H4203AG
TV didn't turn on, just stand by blinking a few timesCm823 leg cut/corroded, ceramic capacitors leg burstReplace or adjustDecio Polita
SAMSUNGUN40F5500AG
Does not turn on, just flashing standby (no backlight)Without 13v power supply changed 10r resistor was measuring 4.22k next to the pfc capacitorReplaced capacitor 10r fiz um video video...Jean Vinicius Franco Lorenz
SAMSUNG UN50TU7000G
Backlight offPoor contact in the power supply board connector,A direct connection was made from the power supply connector with wire to the LED bar connector, everything was fineFernando técnico
SAMSUNGUN43J5290
Won't turn on (dead), AC fuse openCurto mosfets qm801cs e qm802cs (50r380)Replace the mosfets and the 5a fuse and run to the hugWorld TV - Sorocaba