L43S3900FS TV Repair: Common Faults and Solutions.
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Results: 5
Results: 5
L43S3900FS Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SEMP TCL | L43S3900FS | DOES NOT WORK ON 127V, NOR STAND BY LIGHTS UP | IN THE PRIMARY power supply MISSING NETWORK REFERENCE THROUGH THE RESISTOR MESH | REPLACEMENT OF RESISTORS RW925, 926, 927, 1M5. | CARLOS SANTOS |
| SEMP | L43S3900FS | standby LED flashing green, does not turn on | V751 shorted 200v x 9A | Robusto53 | |
| SEMP TCL | L43S3900FS | TV does not turn on LED ST BY blinking quickly, 12V power supply with only 6V. | Capacitors in the power supply primary: cw922 10uf /50v and cw920 22uf/50v, replace directly. | Eugênio | |
| TCL | L43S3900FS 35023819 | If you unplug the power cord and plug it back in, it becomes inoperative. | Tsound was an overload on the electrical network and the device would work if the primary power supply capacitors were discharged. Also if it turned off using the remote control, tsound was no problem but if you unplugged it, it wouldn't even turn on the stand by | Replace the power supply oscillator ci | Hélio Eletrônica |
| SEMP/TCL | L43S3900FS | Dark screen only sound | Change led bars reduce current to avoid return it was 88.5v normal is 84v remove r764 1r voltage is 81.5v they are 3v led | Valerio |