XBox One - ADP-200BR - No Power

[stj]

Re: XBox One - ADP-200BR - No Power

desolder it and see if the short is on the transistor or the board.

[nrcslim89]

Re: XBox One - ADP-200BR - No Power

no, never

Oh on that case seems that I have a bad transistor.
Because outside it beeps

[stj]

Re: XBox One - ADP-200BR - No Power

no, never

[nrcslim89]

Re: XBox One - ADP-200BR - No Power

q901 was driving the small transformer.

Yes correct it drives the small transformer I believe it is 5V transformer.
But no legs should be beeping between Gate and Source correct ?!

[stj]

Re: XBox One - ADP-200BR - No Power

q901 was driving the small transformer.

[nrcslim89]

Re: XBox One - ADP-200BR - No Power

Well hope this could be helpfull check the image. this is near the area that converts AC to DC correct ? because on the other side of the board i have one transformer.

[nrcslim89]

Re: XBox One - ADP-200BR - No Power

check q901

So Q901 is one STD6N62K3

I took it out from the board and i measure continuity mode.
I get Beep between PIN 1 = Gate and Pin 3 = Source.

And linked to it i have that two resistors we talked.
I think they are bad... but don't know the value... of it...
One i think was labled 3R0 = 3Ohm
And the other no label possible to discover ... schematic would be important.

Seems i have short or bad Q901 right ?

[stj]

Re: XBox One - ADP-200BR - No Power

check q901

[sam_sam_sam]

Re: XBox One - ADP-200BR - No Power

The Fuse is nice and have continuity, i have one Adjustable DC PSU, so you mean i need to inject on that 4 optioc sensors 1V and max. 10miliamps ?

You need to remove them from the board to test them I do not recommend injecting power to them while on the board

[stj]

Re: XBox One - ADP-200BR - No Power

so it burned from exessive current.
start looking at what it connects between.

[nrcslim89]

Re: XBox One - ADP-200BR - No Power

so what did R910 have printed on it?

Out of the board, the resistor won't have continuity and reads 10MOh - 11Mohm.

[nrcslim89]

Re: XBox One - ADP-200BR - No Power

The fuse is where you see F4A on the board it is the brown in color and what look like a narrow capacitor but if you look at the top of it should say the voltage and amperage on the top of it

With the voltage at 300 volts the “ NCP1252” appears to be functioning now do you know how to check optic sensors because you need to find out if they are working correctly or not

First of all do you have a bench adjustable power supply if do remove the optic sensor one at a time and find which two pins are the LED side of the optic sensor and adjust the power supply to get about 10 milliamperes ( or about 1 volt or so ) of current draw if you can not do it this was use a 9 volt battery an a 1k ohm resistor and it will do the same thing

Now take a volt meter and check the output pins on the optic sensor for a resistance reading of some kind if not reverse leads if you do get a reading of some kind you can assume that it should be still good

The Fuse is nice and have continuity, i have one Adjustable DC PSU, so you mean i need to inject on that 4 optioc sensors 1V and max. 10miliamps ?

[nrcslim89]

Re: XBox One - ADP-200BR - No Power

well you need to find what damaged it - resistors dont burn without help.

Well you are right resistors need help of some other components to burn...
Well it not look at all burned, but the printed label of his value is like "gone" or scrapped in middle so its almost impossible to detect the real one.

[stj]

Re: XBox One - ADP-200BR - No Power

well you need to find what damaged it - resistors dont burn without help.

[nrcslim89]

Re: XBox One - ADP-200BR - No Power

so what did R910 have printed on it?

Well because it s bad look... I can't know the print or the value... When I measure it no beep but give me O.L MOhm....

Another resistor with bad look is on that area as well that you can see in picture.
Is one 3R0... Well I know its one 3Ohm resistor...
I will find one...
But the R910 it will be nice to discover the real value needed to be there

[stj]

Re: XBox One - ADP-200BR - No Power

Yes but I don't plug power on it.
They have bad look and I am looking for a replacements but I don't know the value should I have there... No schematic...
Need to discover or anyone say to me the correct one.

so what did R910 have printed on it?

[sam_sam_sam]

Re: XBox One - ADP-200BR - No Power

The fuse is where you see F4A on the board it is the brown in color and what look like a narrow capacitor but if you look at the top of it should say the voltage and amperage on the top of it

With the voltage at 300 volts the “ NCP1252” appears to be functioning now do you know how to check optic sensors because you need to find out if they are working correctly or not

First of all do you have a bench adjustable power supply if do remove the optic sensor one at a time and find which two pins are the LED side of the optic sensor and adjust the power supply to get about 10 milliamperes ( or about 1 volt or so ) of current draw if you can not do it this was use a 9 volt battery an a 1k ohm resistor and it will do the same thing

Now take a volt meter and check the output pins on the optic sensor for a resistance reading of some kind if not reverse leads if you do get a reading of some kind you can assume that it should be still good

[nrcslim89]

Re: XBox One - ADP-200BR - No Power

This is great that they are not shorted but this does not mean that they are working correctly though

What is the voltage across the main filtering capacitor on the primary side of the power supply remember that we are talking about main line voltages here so be careful measuring this voltage across the capacitor

If you have an incandescent 100 watt light bulb and can wire it in stead of the fuse would be advisable this would be a little safer way to to work on this switching power supply

Please post your results

Ok I will try but it will be easier if you point me on pictures where I can plug the bulb... And make the test.
I get on big caps when power is plugged around 300V putting the BLK probe on heatsink (think is GND of AC side) and RED probe on big caps.
I test diode mode... Continuity mode, resistor mode and seems all fine.
But I don't know how to really test or measure the transformers.

[nrcslim89]

Re: XBox One - ADP-200BR - No Power

did you remove R910 on the underside??
it looks like it used to be there!

Yes but I don't plug power on it.
They have bad look and I am looking for a replacements but I don't know the value should I have there... No schematic...
Need to discover or anyone say to me the correct one.

[stj]

Re: XBox One - ADP-200BR - No Power

did you remove R910 on the underside??
it looks like it used to be there!