NEWTON POWER NPS-180 Can't Start

[SpyCaps]

Re: NEWTON POWER NPS-180 Can't Start

This is NPS-180EB.
http://www.oemliquidators.com/search...%20-%206500724

- What version/revision do you have?

Hi PCBONEZ,

My version is NPS-180BP. Can i find a schematic of NPS-180?

I want to fix because i like this dell machine and train electronic skill myself.

New supply find difficult in my city. Then i decided to fix it. ^ ^

Please help me to find the bad in this supply. Thanks you all.

[PCBONEZ]

Re: NEWTON POWER NPS-180 Can't Start

Finding a schematic is unlikely.
They like to keep their designs secret.

What Dell machine is it in? [What model of Dell?]

Can you post a photo of the whole unit please.
.

[PCBONEZ]

Re: NEWTON POWER NPS-180 Can't Start

Are you sure you read the label correctly?
I can't find any mention of a NPS-180PB anywhere.
NPS-180BB is a Dell proprietary unit [and very common.]
NPS-200PB seems to be a basic uATX size PSU.
[Although if it was in an old Dell P3 system some had proprietary pin-outs.]
.

[SpyCaps]

Re: NEWTON POWER NPS-180 Can't Start

Are you sure you read the label correctly?
I can't find any mention of a NPS-180PB anywhere.
NPS-180BB is a Dell proprietary unit [and very common.]
NPS-200PB seems to be a basic uATX size PSU.
[Although if it was in an old Dell P3 system some had proprietary pin-outs.]
.

[PCBONEZ]

Re: NEWTON POWER NPS-180 Can't Start

That's not what I was looking for. - It does not help at all.

The PCB number is rarely what the model number is.
That same PCB might get used in 20 different models.
It is the model number on the box that helps to find things.

- I need to see a picture of the sheet metal box that goes into.
- I need to know the model number of the Dell it came in.
.

[SpyCaps]

Re: NEWTON POWER NPS-180 Can't Start

HI PCBONEZ,

here is your request.


Yellow should be 12V that u told us.

Why this power is 10V? Where is the problem? I'm so tried for fixing it.

[Th3_uN1Qu3]

Re: NEWTON POWER NPS-180 Can't Start

It may need a minimum load on 5v for 12v to operate correctly. Connect a spare hard drive to it and see if it goes in spec.

[PCBONEZ]

Re: NEWTON POWER NPS-180 Can't Start

So it looks like this then?
-
That is a very common Dell part used in.
Dell Optiplex GX60 Small Desktop
Dell Optiplex GX240 Small Desktop
Dell Optiplex GX260 Small Desktop
Dell Optiplex GX270 Small Desktop
And some others.

Should not be hard to find even in THAILAND but search for Dell PSU instead of NPS PSU.
There are maybe 3 Dell PSUs that fit but that are not NPS.

Also now that we know exactly what it is some members may actually have one to look at/check to help answer questions.

.

[PCBONEZ]

Re: NEWTON POWER NPS-180 Can't Start

Dell Optiplex GX280 Small Desktop has one that fits but it is 210 watts.
[Upgrade]

[PCBONEZ]

Re: NEWTON POWER NPS-180 Can't Start

It may need a minimum load on 5v for 12v to operate correctly. Connect a spare hard drive to it and see if it goes in spec.

Good idea.

[SpyCaps]

Re: NEWTON POWER NPS-180 Can't Start

It may need a minimum load on 5v for 12v to operate correctly. Connect a spare hard drive to it and see if it goes in spec.

But!! now it not turn on

[SpyCaps]

Re: NEWTON POWER NPS-180 Can't Start

So it looks like this then?
-
That is a very common Dell part used in.
Dell Optiplex GX60 Small Desktop
Dell Optiplex GX240 Small Desktop
Dell Optiplex GX260 Small Desktop
Dell Optiplex GX270 Small Desktop
And some others.

Should not be hard to find even in THAILAND but search for Dell PSU instead of NPS PSU.
There are maybe 3 Dell PSUs that fit but that are not NPS.

Also now that we know exactly what it is some members may actually have one to look at/check to help answer questions.

.

Replace it?

Why we not repair it? I have tools and knowledge (maybe a little bit).

[PCBONEZ]

Re: NEWTON POWER NPS-180 Can't Start

You said you were repairing it because you couldn't find one and you want the system back.

Replacing it to get the system back doesn't keep you from fixing the old one,,, now does it..

[PCBONEZ]

Re: NEWTON POWER NPS-180 Can't Start

But!! now it not turn on

It may be a short on the drive drive.
Try a different drive.
If it does that again it is the PSU.

[SpyCaps]

Re: NEWTON POWER NPS-180 Can't Start

You said you were repairing it because you couldn't find one and you want the system back.

Replacing it to get the system back doesn't keep you from fixing the old one,,, now does it..

I love this old dell and I decided for repairing.

This system not important now because i have an other machine.

[SpyCaps]

Re: NEWTON POWER NPS-180 Can't Start

It may be a short on the drive drive.
Try a different drive.
If it does that again it is the PSU.

I'm not connect any drive to PSU. Test the PSU by short green and black together and power not turn on, fan twists, and then down.

After that I replaced all CAPS in secondary module, But problem stills alive.

How can i do? No one know about a schematic of it.

[PCBONEZ]

Re: NEWTON POWER NPS-180 Can't Start

PSU will not start without a load.

They do not make these schematics public.

.

[SpyCaps]

Re: NEWTON POWER NPS-180 Can't Start

PSU will not start without a load.

They do not make these schematics public.

.

http://www.ochardware.com/articles/p.../psuvolt2.html

Why this psu doesnot start like several psu?

[PCBONEZ]

Re: NEWTON POWER NPS-180 Can't Start

That PSU is in a case. - It has drives connected.

Some modern PSU's will start without load, but not very many.

The people in -THIS- forum know what they are doing and make few mistakes.
-
If you don't want to follow our advice then stay in one of those other forums you are asking the same questions in and don't waste our time.
.

[c_hegge]

Re: NEWTON POWER NPS-180 Can't Start

Most standard PSUs I've seen will start with no load since the minimum load resistors inside are enough to get them to start. However, this is a non-standard PSU, so it wouldn't surprise me at all if it at least needs a few disk drives connected.