48L2400 TV Repair: Common Faults and Solutions.
Search: 48L2400
Results: 27
Results: 27
48L2400 Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| TOSHIBA | 48L2400 | Nor +5v | Before replace the FLS206MR, replace the NB955 photocoupler (defective) | HAHNRAHN | |
| TOSHIBA | 48L2400 | Nor +5v | Before replace the FLS206MR, replace the NB955 photocoupler (defective) | HAHNRAHN | |
| SEMP TOSHIBA | 48L2400 | Does not turn on, no stand-by | Power supply | Utc uk3568l (vf903) and fuse 5a (f911) | Brackmann |
| SEMP | 48L2400 | Only red standby LED and it doesn't work | Missing 3v3 voltage at the output of the n807 powered by the n802 | If tsound is 12v at input pin 2 of the fr9889, tsound is power at pin 7 and at the output tsound is no 5v that will power the n802. replace the ci fr9889 with another one...good luck. | evando viana |
| SEMP TOSHIBA | 48L2400 | The logo appears and after 30 seconds to 2 minutes it turns off and returns to stand by. and if you turn it on again it happens again | Bad ci n801 close to the processor. responsible for v-core | Changing the n801 It's a fr9889 | Eletronica SV - Guaira PR |
| SEMP TOSHIBA | 48L2400 | Inoperative without standby | Nb905 | Replace the ci nb905 fsl206mr and just run for the hug. | Sinailson |
| SEMP | 48L2400 | Any problem with little or no back light | R765 = 100k | R765 = 100k | |
| TV SEMP TOSHIBA | 48L2400 | TV turns on red LED. When you press the power key, the green LED lights up with the brand's logo and then goes out and becomes inoperative, then turns red again. back light protection activating due to a failure in the protection circuit or | Back light protection activating due to a fault in the protection circuit or LED(s). | I added a 100k resistor to terminal 41 of ic n701 for board ground. problem solved. | JP Elca |
| TV SEMP TOSHIBA | 48L2400 | TV turns on red LED. When you press the power key, the green LED lights up with the brand's logo and then goes out and becomes inoperative, then turns red again. | Back light protection activating due to a fault in the protection circuit or LED(s). | I added a 100k resistor to the ic n701 terminal for board ground. problem solved. | JP Elca |
| TOSHIBA | 48L2400 | Does not come out of standby. | 1.15 v is missing on pin 3 of the n801 (fr9889), if you don't have this ci, it can be replaced by the mp2307 | If I helped, help me with a $5 pix... thank you very much my pix 95679782200 | LoganKleiton |
| TOSHIBA | 48L2400 000 | Red stb led obs doesn't change only red | No voltage of 1.15 regulator n801, check voltage l801 | Replace regulator n801 put new one | VALDENIR ( TECVIDEO ) |
| TOSHIBA | 48L2400 | Turns on, standby comes on, press power, the TV turns on, writes Toshiba and very quickly the logo goes off and the LED turns green and stops functioning, it does not obey commands, nor does it accept turning off, in other words, it stops operating..... | So I was unsure if it was a backlight, as I had a new kit and had the cable that goes to the rulers, I tested it from the outside without having to disassemble the TV and confirmed that the defect is in the LED panel itself. | I had already picked up a 48" that did this but I didn't remember that the defective kit makes this model act as protection and stops the processing. | MIGUELTV |
| TOSHIBA | 48L2400 35019026 | The LED doesn't turn on, blinking red, sometimes it turns on for a few minutes and then turns off and the LED blinks red | Going into power supply circuit protection, defective zener diode | Replace 5.3v zener diode vd954 | Diverso Eletronica |
| TOSHIBA | 48L2400 35019026 | The LED doesn't turn on, blinking red, sometimes it turns on for a few minutes and then turns off and the LED blinks red | Entering into protection primary circuit that turns off the TV, replaces 5.3v zener diode vd954 | Diverso Eletronica | |
| TOSHIBA | 48L2400 | The Toshiba logo appears and then the image disappears | Main board goes into backlight protection. If the adaptation of placing a 10k or 15k resistor in place of the r766 does not work, you can perform another procedure to remove the backlight protection. | Place a 10k resistor from pin 41 of the ci oz9916 (ci backlight) to ground. | Dennys Gross |
| TOSHIBA | 48L2400 | The Toshiba logo appears and then the image disappears | It appears to be a backlight defect, but the main board goes into backlight protection | Replace the smd resistor r766, on the main board (near the backlight controller ci). 5.1k resistor. replace to a 10k one, and if that doesn't work, put a 15k one | Dennys Gross |
| TOSHIBA | 48L2400 2400 | Turns on STB red LED does not start without 12 and 32v power supplys | Capacitors cw908 100nf with 82nf, cw904 100nf with 93nf and cw906 1.2nf open. | Replace capacitors and earn some money. | niltec |
| SEMP TOSHIBA | V2 48L2400 | Backlight turns on and turns off in a few seconds | Deactivation of backlight protection. on the inverter part of the main board, go to ci n701 and place a 100k resistor from pin 10 to r786 (it's just below the ci). By doing this, backlight protection will be deactivated. | EC | |
| TOSHIBA | 48L2400 | It only stays on standby, red LED is on but does not turn on | Changing the 3.3 volt SMD regulator, when measured it was only 3 volts and tsound was 3.3 on another 2 regulators that could not have any voltage with the device on standby, changing the regulator close to the processor and resolved. | xande | |
| TOSHIBA | 48L2400 | When turned on, the logo appears and turns off. | Back light with 1 shorted LED. | LED replacement. I also lowered the circuit current. I removed the inverter resistors r788, r791, r793, r796, r799, r780 (all 1r). the measurements were 38v and 269ma, with back light at 100%, for 35.2v and 134ma. | Eletrônica R-Tec |