PS5 - EDM-010 - Component Identification & No Power Issue

[grimacelord]

Hello,

Working on a PS5 that came to me for no power. Console would not beep or power on when pressing the power button initially. Board model is EDM-010.

I began by taking the console apart and performing a visual inspection on the board. Everything looked fine. I then tested the various fuses across both sides of the board and found that F7001 and F003 were both blown. I then looked closer at F7001 and found that the right side of the fuse read short on my multi-meter, so I injected 1V and found that a capacitor near the F7502 was getting hot, so I removed it and the short cleared.

I then replaced the two blown fuses and partially reassembled to test and still no power on however the eject button now makes a beep sound when pressing it and the power button will make a beep sound only after pressing the eject button first but won't beep if you didn't press eject first.

I then disassembled again and checked the fuses again and they are all ok, so they didn't blow again. I then checked for shorts and found none so I then started probing for voltages and found that a pad that is supposed to have 5VSTBY present in standby mode is missing. It's supposed to have 5V but it's reading 300mV. That pad also happens to be next to where the shorted capacitor is.

I made a graphic showing what I am looking at here and was hoping someone could take a look and hopefully help me out with this one because I am not sure what to check from here.

Thank you!

 

[jkyoho]

You should have 5v standby at that "missing" point when F7001 is not blown and 12v present on main power socket.

 

[grimacelord]

You should have 5v standby at that "missing" point when F7001 is not blown and 12v present on main power socket.

Thank you for your reply, but I already knew that I should have 5VSTBY at that pad and don't. It reads 300mV whereas it should be 5V. The fuse is no longer blown after I've replaced it and removed the shorted cap and 12V is applied at main socket.

I am suspecting that the component I have marked in that image with "what is this?" may be the reason I don't have 5V at that point, but I am not sure what it is. It appears to be a Texas Instruments component, but that's all I can gather.

Post automatically merged: Oct 29, 2024

Also, this may or may not help, but I asked this same question over on another forum because I'm trying to get as much exposure to this question as possible and I received the following reply:

"Check the two TI 3219A 5v Synchronous Buck Controllers by f5071 and by the red caps "

I don't know if that is helpful to anyone in regard to helping me diagnose this issue or not.

 

[jkyoho]

"Whats this " is the SBV TI stepdown chip, parts number is TLV62090. The 300mv is the source of this chip and it comes straight from F7001, if you have 300mv there means all your 5v standby got pull down to 300mv. Check the resistance to ground at the "missing" place

 

[grimacelord]

"Whats this " is the SBV TI stepdown chip, parts number is TLV62090. The 300mv is the source of this chip and it comes straight from F7001, if you have 300mv there means all your 5v standby got pull down to 300mv. Check the resistance to ground at the "missing" place

Thank you for the help in identifying the component!

I did check the resistance to ground at the "missing" pad that is supposed to have 5VSTBY and I am reading 4.2 megaohms. Diode mode reading of the same pad is 0.486V.

I do have 5VSTBY present at other test points on the board. It appears that it's only at this point next to F7502 am I missing the 5VSTBY. That pad connects directly into that TI chip, so I figured that chip may be responsible for why I have 5VSTBY everywhere else on the board but only 300mV at that test pad, but I guess not.

Post automatically merged: Oct 30, 2024

Made up a quick graphic. I am using a youtube video titled "Playstation 5 Ultimate Troubeshooting Guide: Fix Your Console Like A Pro" as a reference point of where I am supposed to have the various voltages. (I tried to link to it, but I guess I can't due to spam protection)

According to that video, I DO have 5VSTBY on all other test points, both front and back of the board. The only place that I do not have 5VSTBY is at the test point next to F7502. That test point that is supposed to have 5VSTBY only reads 300mV. F7502 is not blown, however this same circuit is where I had a shorted capacitor that I removed.

Not sure what to check at this point.

 

[grimacelord]

Just wanted to come back with an update. Since I had 5VSTBY on every other test point except for the one located next to F7502, I decided to run a jumper wire from F7502 to the test point that is supposed to have 5VSTBY. This then turned on SBV TI stepdown chip and solved my problem. PS5 works now. Thank you jkyoho for identifying the chip and for letting me know the power source came from the fuse, which led to my idea of running a jumper wire. Problem solved.