Samsung tv won't power on
i have a Samsung LE32B450C4W that a some time ago i was using it oneday and the next day it didn’t power on with the standby light just solid red is this a fuse problem or something else please help
642768
声誉积分: 13
1
1
1个答案
已选择的解决方案
声誉积分: 447.9千
11
366
1.4千
If you haven't already done so try a power refresh.
Disconnect the power from the TV and then press and hold the TV Power on/off button for 30 seconds and then release. Reconnect the power to the TV and try to turn it on and check what happens.
If still no good try the following:
Disconnect the power from the TV and then remove the back cover from the TV.
Disconnect the cable between the power board and the main board. While there inspect the power board for bulging or blown capacitors or heat stressed components.
Reconnect the power to the TV.
The TV LED backlights should turn on full and stay on. There will be no picture because the mainboard has been disconnected.
This is just a quick check of the power board. If the LEDs turn on and since the standby power LED was also working (before) it means that the power board is working up to a point anyway, as it is turned full on when the mainboard is disconnected.
In this condition, if you have a Voltmeter you can test what the voltages are on the power board connector that the cable to the mainboard connects to. Their values should be marked nearby.
If the power board voltages appear to be OK then most likely it is a problem with the mainboard.
Be safety aware when working in the back of a TV with the power connected as there is exposed lethal AC voltage on the power board.
这个答案有帮助吗？
得分
1
3条评论
Hi @peter_bryer
Having the standby light on indicates that the TV power board is functioning enough to send the correct signal to the mainboard so that it turns on the light. It's telling the mainboard that power is available when required.
Have you tried turning on the TV using the TV's power on/off button (right side of TV) just in case it is a problem associated with the remote control unit, you didn't say?
由 jayeff 完成的
@jayeff ah yes sorry i have tried the remote control and the controls on the actual television and have gotten no result
由 Peter Bryer 完成的
Samsung smart Tv had the same issue, No power no Red LED on. Completely dead. Then i found the solution in this video. The output rectifier was damaged and I replaced it as shown in this. It starts working. :-) (Y) > https://www.youtube.com/watch?v=tJxs9LUF...
由 Batwings wings 完成的