Re: HPE Proliant DL380 G7 Schematic Diagram

Should I move this thread to the technical forum to see if someone can help since I don't think anyone has access to the schematic I need, what you guys think?

Re: HPE Proliant DL380 G7 Schematic Diagram

Since I can't seem to find the edit button, just wanted to let everyone know, I did indeed change the front panel buttons board and still the same.

Hi all, I'm looking for the schematic diagram of either 599038-001 583918-001 boards, they are for the Proliant DL380 G7 mobo.

My server is turning on and off like the power button is stuck, meaning that the voltage rail is wrong because it isn't either going up to where it needs to be or isn't going down to where it needs to be. I think is that it isn't going/staying up since I was monitoring the voltage and it was drifting down, and im almost positive is a bad cap or resistor. I don't remember the voltage out of top off my head but I can provide if any is willing to lay a helping...

Re: Samsung LE32R88BD/ BN44-00155A

I'll need an esr meter for that then, can try it with the oscilloscope but won't be sure if they are starting to go, I have other caps to compare 'em but I don't think its a suitable way to test 'em. Any ideas on making a scrap-together-esr-meter?

Anyhow any other thoughts until I figure out the best way to test the caps?

And yes I need a new multimeter and a couple other testing equipment.
Thanks in advance.

Re: Samsung LE32R88BD/ BN44-00155A

I checked those earlier but just to double check them here are some photos of curve tracer on them. They seem to be working properly, not shorted and show to be working like a diode on its respective polarities.

They read same value all around. So no shorts there.

1st anode to cathode on A diode

2nd anode to cathode on A diode

1st anode to cathode on B diode

2nd anode to cathode on B diode

anode to anode on A diode

anode to anode on B diode

...

Re: Samsung LE32R88BD/ BN44-00155A

Hello again, just to give you a little bit more info, I noticed zener diode DZM854 27V 1/2W in the 24V rail shorted, replaced it and still shorted again. And have been trying to figure out why does it shorts with no results. Any thoughts? Please someone? Thanks in advance.

BTW: The information I provided earlier is almost all wrong since I was probing the HOT side of the board with respect to earth ground. So sorry for that, if someone could tell me how to edit posts I will greatly appreciate it.

EDIT: Just noticed my...

Re: Samsung LE32R88BD/ BN44-00155A

Hello, first time poster long time reader here, since yesterday I received a Samsung LCD TV with this power supply board. and for some kind of reason I don't seem to find what is wrong with it. Now I have decided to ask for some help after finding not a clue.

So physically the red led light from the front button switch flashes really consistently with no change, and if I depress it no voltages change on the Power Supply. There is no kind of damage whatsoever on the PS board, nothing burnt, fusible resistor is great. No swollen caps,...