dúvida Xbox 360 Slim corona 4gb NAND u5a1 replacement alternative

[xbox1]

Hi 
I have a Xbox 360 corona (4gb model) that does not turn on
No light or beeps. U5A1 seems bad and replacing it with the same one is impossible
I do not have any other Xbox boards or spare parts 
Other people on other forms mentioned that this can be replaced with sp6669 or NCP1521 but I cannot find the location for the EN, SW AND FB pins
I do not have neither and ordering will take along time to arrive but I want to test to see if console turns on and beeps

 

I was reading here 
http/www.consoleopen.com/forum/hardware-xbox360-e-xbox-360-slim/11923-risolto-regolatore-tensione-u5a1-su-trinity-sostituito-con-sp6669.html

Please can someone provide some alternative components to get this working

 

Some people have used NCP1117, NCV1117 or LM1117 3.3v regulator and wired this using jumper wires

 

Also there is a wiki that shows the regulators on a ps3 board (I do not have MM1662YHBE ) on the boards I have

but is there any other of the other ones I can use.

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Please can someone let me know if any of the above will work and if so what would wiring be 
Thanks so much 

 

Also is there any alternative components that will work and will not blow anything up upstream or down stream on the motherboard that can be found on devices such as old ADSL routers 

Or better old PS3 mother boards (COK-002 OR SEM-001)

I look forward to the responses

Thanks in advance

[coisadelouco]

your unique alternative is do this ... if you dont have the backup of your nand off course ...
https://www.youtube.com/watch?v=2y1nu2lS4PU

[xbox1]

1 hour ago, coisadelouco said:

your unique alternative is do this ... if you dont have the backup of your nand off course ...

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This does not help me because My board is 4gb model and has only the chip in the middle not wide like in the video

This is extreme 

 

In which devices can I find the appropriate component to connect via jumper wires to replace UA51

Please someone advise

Thanks

[sh4d0w4224]

 

 

Hello, can be used any 3.3v controller, xbox drive pcb has 1.2v and 3.3v controller. No beep then no standby voltage. the wires are easy to weld on the motherboard. Remove the damaged regulator from the motherboard before inserting the new regulators.

Editado: 6 de Novembro de 2018 por sh4d0w4224

[xbox1]

@sh4d0w4224 I saw this but I do not have AMS1117 3.3V in any of the electronics available to me 

Like I posted originally I have some ps3 boards (cok-002 and sem-001).

Can I use anything from them please

 

[sh4d0w4224]

@xbox1 , I've heard something about using 3 diodes in series (1N4xxx max 1A) to limit the 5v to 3v, but I have never tested this method. There is no 3.3v regulator on the ps3 board (3.3v is generated by IC / Dual Mosfet), it is only possible to find the 1.8v regulator on some boards. Is not it easier to buy the regulator? (cheap and easy to find)

[xbox1]

7 minutes ago, sh4d0w4224 said:

@xbox1 , I've heard something about using 3 diodes in series (1N4xxx max 1A) to limit the 5v to 3v, but I have never tested this method. There is no 3.3v regulator on the ps3 board (3.3v is generated by IC / Dual Mosfet), it is only possible to find the 1.8v regulator on some boards. Is not it easier to buy the regulator? (cheap and easy to find)

I know it is easier and are on order for parts but taking a long time to get to me 

Can i use the parts from old adsl wireless routers

 

do you have any links to show how to wire the diodes to the xbox360 slim corona 4gb model pls

 

[xbox1]

14 minutes ago, sh4d0w4224 said:

@xbox1 , I've heard something about using 3 diodes in series (1N4xxx max 1A) to limit the 5v to 3v, but I have never tested this method. There is no 3.3v regulator on the ps3 board (3.3v is generated by IC / Dual Mosfet), it is only possible to find the 1.8v regulator on some boards. Is not it easier to buy the regulator? (cheap and easy to find)

I know it is easier and are on order for parts but taking a long time to get to me 

Can i use the parts from old adsl wireless routers

 

Or is it possible to find these components from old pc power supply or ps3 bluray drive or ide hard drive pcb's

do you have any links to show how to wire the diodes to the xbox360 slim corona 4gb model pls

 

[xbox1]

HI 

Can someone upload a pic on how to use the diodes please

thanks