The unit is not powering up - Samson TXM20 Tabletop 20-Channel Powered Mixer

To learn more about your unit first see whether the unit is receiving power. Check to see your breaker is turned on and that there is power coming out of the breaker (use a volt/ohm meter and measure for 115 volts or 220 volts depending on the units requirements.) Fujitsu has code lights that light up to tell you the status of the unit and gives error codes. I assume the unit is dead and there status lights are not lit up.

Next check for power at the outdoor unit with the volt/ohm meter. The outdoor unit will hav a disconnect box on the wall. Some have fuses which may be blown, some have breakers, and some have no fuses or breakers but do have a shorting bar with a handle that you pull straight out to disconnect power going to the outdoor unit. Once you have opened the cover of the unit you can tell which kind of disconnect you have. Remove the cover or pull the disconnect bar. You then will have the power circuits exposed and can measure to see if the unit is getting power.

Next, in the case of mini splits, there is sometime a indoor power switch to disconnect power to the indoor unit. The power for it comes from the outdoor unit. Make sure it is turned on. Sometimes kids play around and throw switches and don't know what they are doing and kill the power to the indoor part of your unit. If you are unsure if the indoor unit is getting power, you can remove the indoor cover by prying off the cover, then unscrew the phillips screw on the right of the panel to expose the incoming power terminals and measure for power actually being at the unit.

Lastly if you have power to the outdoor unit but no power to the indoor unit and there is no problem with the indoor disconnect, go back to the outdoor unit and check the fuses to see if any are blown. They are located inside the outdoor unit. You will have to remove the outdoor cover and screens to get to them. At this point you should have a repair manual with information on where the fuses are.
You may be getting over your head at this point and will best need to get a repair person with experience.

Most people are not capable of doing his last step.

Take it back to where you got it from

Hello, welcome to Fixya!

Your unit is having a power fault because it is not switching on. The unit might have worked fine in the past, but that's electronics for you. Power surge, irregular power supply, excess power supply, etc can affect the unit thereby not making it to power on.

First, remove the unit's power cord from the wall, wait for about 30mins, then plug it back in. If it doesn't power on, plug it into another outlet, to make sure there electric current entering into the receiver.

If plugging into another power outlet doesn't power it on then it confirms that the unit is having a power fault.

When electric current comes from the power outlet into the unit, it goes straight into the power supply board which then circulates the current into the unit. So if the unit doesn't power on, the first thing is to make sure there is power entering into the unit.

So check the power cord, if it is a 3-pin plug, it must have a fuse in it. check the fuse if it is not blown. if fuse is intact, then power supply board should be checked.

This unit must have a power supply board in it where power enters from the mains. A capacitor, fuse, diode, etc may have been defective on the power board and maybe that's why its not making the unit turn on. There might also be some disconnection or something, inside the unit which is not making it to power on.

To actually find out what's wrong, you need to disassemble the unit with a screw driver and check what's wrong. You will be needing a meter and continuity tester in order to read the components on the power board. Once you detect any bad component, you can make necessary replacement at any electronics accessories store within your vicinity. This is the only way by which you can detect and solve the problem.

Of course, testing the power board with a meter will require someone that has the ability. So it you can't, then you might be needing the help of a repairman or you can call a friend that has the ability to help you out.

I wish you the best of luck.

Take care.

The DVR unit still have power and display functions on the DVR small LED screen indicator on the DVR unit correct?And the DVR unit have not been in used for awhile and alway been plug in the power outlet for power like 24/7 hrs for power correct?Yes to all these questions,possible the DVR unit have software lockup or power glities some where before,possible the DVR unit have lockup and looping the software firmware of DVR unit not responding correctly for to the DVR unit to work or responding to any screen display functions.Tries unplugging the DVR unit for like about an hour and plugging power it back in for the DVR unit for the software to reboot itself.90 to 95% the unit will work again as u first got the DVR unit.

Please perform the following steps:

Step 1: Power Cycle

1. “Shutdown” your computer.

2. Verify that the unit is switched ‘on’.Unplug the all-in-one from power and ‘disconnect’ the connection port.

3. Wait 30 seconds.

4. Plug-in only the ‘power cord’.

5. Repeat steps 2-4 two more times.

6. On the third time after plugging the unit into power, reconnect the connection port from the all-in-one to your computer.

7. Restart your computer and check the functionality.

Step 2: Partial reset:

1. Unplug the power cord from the unit.
2. Press and hold # and 3 buttons together while plugging in the power cord back to the unit.
3. Turn on the unit

If the issue persists, perform the following:

Step 3: Semi ful reset:

1. Unplug the power cord from the unit.
2. Press and hold # and 6 buttons together while plugging in the power cord back to the unit.
3. Turn on the unit.

If the issue persists, pleae conect the unit to a diffrent power out let. Also please chek if the unit works fine in the stand alone mode (with out connecting to the computer). If the issue persists, replace the printer

:) Dr Tony

Hi,

Please perform the resets given below and check if you are able to print the fax log. Please perform all the resets.

*** Partial Reset ***

* Turn on the unit
* Disconnect the power cord from the back of the unit
* Press # and 3 buttons simultaneously while plugging the power cord to the unit.


*** Semifull Reset ***

* Turn on the unit
* Disconnect the power cord from the back of the unit
* Press # and 6 buttons simultaneously while plugging the power cord to the unit.


*** NVM Reset ***

* Turn on the unit
* Disconnect the power cord from the back of the unit
* Press OK and Cancel buttons simultaneously while plugging the power cord to the unit.


Wish

1. Please make sure that the power adapter is working properly. Also connect the unit to a different power outlet and verify.

If the issue persists, please perform the following steps:

Step 1: Power Reset:

1. Disconnect the unit from the computer. Verify that the unit is switched ‘on’. Unplug the power cord from the back of the unit.

2. Wait 30 seconds.

3. Plug-in only the ‘power cord’.

4. Repeat steps 2-4 two more times.

5. On the third time after plugging the unit into power, reconnect the connection port from the all-in-one to your computer.

If the issue persists, perform the following steps:


1. Take the cartridges out of the unit. Unplug the power cord from the unit.

2. Press and hold # and 3 buttons together while plugging in the power cord back to the unit.

3. Turn on the unit and insert the cartridges.

This will solve the problem...

Checked and found that motor is definitely overheating for unknown reason. Since power unit is still under warranty, solution was to contact local service company for NuTone power unit and have them come out and fix/replace it free of charge.

You have a bad power plug on the unit. The solder connection are loose. The one have is doing the same thing. The power plug pins have came lose and need to be resolder. Working on how to take the unit apart to solder the connection.

Yes you can replace the old defective power supply with the new atx but the problem is the size. It the size it fit to your computer nothing to worry because power supply now is almost the same output only the wattages changes.