crwdns2936637:0crwdne2936637:0 crwdns2853008:0crwdne2853008:0 crwdns2918746:0crwdne2918746:0

A television game console produced by Sony Computer Entertainment, also known as PS4. First announced February 20, 2013 and released November 15, 2013.

crwdns2934591:020crwdne2934591:0 crwdns2934593:0crwdne2934593:0 | crwdns2947278:032crwdne2947278:0 crwdns2947270:0crwdne2947270:0

crwdns2933897:0crwdne2933897:0

PS4 not turning on, power supply already changed

Dear all,

I bought on the Internet a broken used PS4; the owner told me that he went on vacation and, after 2 weeks, the console wasn’t turning on and so he decided to sell it.

The console was never been opened and so I decided to try and change the power supply with a good working one. The console still doesn’t turn on and it won’t beep even shorting the “pad“ on the mainboard with a screwdriver.

Considering that there is not any schematic document for the PS4 on the Internet, would you please help me identify the problem and maybe tell me where should I begin to check things at component-level?

Thanks in advance.

Roberto

crwdns2934081:0crwdne2934081:0 crwdns2934083:0crwdne2934083:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 0
crwdns2947414:01crwdne2947414:0

The power plug is fine and fine are all the cables that plug into the mainboard.

I also think it's something with the mainboard, I would like to know if I have to check some capacitor/resistance in particular to see if something is shorted to ground.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0

crwdns2933313:01crwdne2933313:0

crwdns2934221:0crwdne2934221:0
crwdns2931211:0crwdne2931211:0 crwdns2931215:0crwdne2931215:0 crwdns2934225:0crwdne2934225:0
crwdns2934051:0crwdne2934051:0

crwdns2933897:0crwdne2933897:0

Most common issue is the power supply that stopped working (if it’s not booting up), but you replaced it already.

I think the motherboard is broken to be honest. Did you checked the power plug at the backside? All OK there ?

You can also check if a capacitor became faulty on the motherboard.

crwdns2934105:0crwdne2934105:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 1

crwdns2944067:07crwdne2944067:0:

The power plug is fine and fine are all the cables that plug into the mainboard.

I also think it's something with the mainboard, I would like to know if I have to check some capacitor/resistance in particular to see if something is shorted to ground.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

Do you know the exact type of your motherboard ? (example: SAB-001). And also don't forget to check the 2 pins (for the PSU) on the motherboard and the 3-4 pin connector for the power supply. You can measure if power is coming in.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

Also measure if the two big pins for the PSU are shorted to ground from a continuity test.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

Hi, sorry for the late answer; the mainboard is a SAB-001 and yes, 5V are coming out on the connector on the mainboard and the 2 probes are NOT shorted to ground. Since there are no schematics available on the web, do you have some more suggestion? I tried measuring some components with the PU plugged in and I can measure 3.3V on some components but I have no clue what they are and what's their function...

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

SAB-001 information: http://finalmans.blogspot.com/2018/05/po...

And scroll down to go to the PS4 selection.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934275:02crwdne2934275:0

crwdns2934285:0crwdne2934285:0

crwdns2934229:0crwdne2934229:0

Roberto Silvestri crwdns2934231:0crwdne2934231:0
crwdns2936625:0crwdne2936625:0:

crwdns2936751:024crwdne2936751:0 2

crwdns2936753:07crwdne2936753:0 3

crwdns2936753:030crwdne2936753:0 23

crwdns2942667:0crwdne2942667:0 3,924