#88 Repair of PS5 Digital Edition - No Power

[@johnrazor8720]

I was so surprised that the APU survived. Good tips on tracking the short. Thanks.

[@ToltecMerc]

I feel quite fortunate! Thanks for watching!

[@wigmansir]

Always a pleasure watching you diagnose and repair these console.. Great job.

[@ToltecMerc]

Thanks for watching and commenting!

[@winlose3073]

pro, well organized and systematic job.

[@ToltecMerc]

Thank you very much!

[@orion310591RS]

12:00 - Search video called "Convert Your MULTIMETER into an accurate SHORT CIRCUIT TRACER Finder for less than $1 Build This DIY" From channel Learn Electronics Repair. You have good multimeter, you can use it to find shorted mosfet. About mosfets, I could be wrong, but 6 are HIGH side, 6 are LOW side. Shorted mosfet made current go to ground probably on LOW side, if one is shorted on HIGH side, then its on path to kill APU. If I remember correctly.

[@Adrian_Finn]

He also has a video on a few different methods of how you can find a shorted mosfet, one with an ESR meter and one with a milliohm metre and does a brief circuit diagram of why that works. Toltecs method is just as valid and I would recommend for a beginner to do this to understand how that particular circuit works, especially a beginner who doesn't have all those tools, it should be learned the manual way before you use tools to make it more quicker and convenient.

[@ToltecMerc]

I don't believe that these are simple MOSFETs. I believe they are complete DC-DC converter ICs containing a high an low side FET and the control circuitry in one package. I injected 1V where the 12V would connect and I measure 0.7 at the APU. I believe the internal high side MOSFET shorted. I have heard of using the multimeter as to find shorts by injecting current and measuring millivolts of voltage drop. The lowest voltage read should be the closest to the short.

[@orion310591RS]

@@ToltecMerc Yes thats the case with mV scale and voltage drop. You could identify short without desoldering coils.

[@macwake]

You're right, all the stuff is in parallel, but not quite - the phases run together _after_ the coils. The trick is to measure resistance with an ESR meter - with several kHz, the coil's resistance goes way up, and you can detect shorted APU mosfets without having to desolder every coil. Also, when injecting voltage in the APU area, it may be wise to put the ground lead on APU VCore (on the end of the coils that go to the APU). This way you protect the APU from overvoltage, in case the short is intermittent or burns away while you're injecting and you accidently forgot to set voltage clip to .8/.9V. Wrote this when 12:25 into the video, without sneaking ;)

[@ToltecMerc]

That's an excellent tip! I do have a homemade ESR meter that runs at 100kHz. I'm sure those coils would look very high impedance at that frequency. I'll give it a try next time. Thanks!

[@mattia7562]

nice tip! but just one clarification: what do you exactly mean saying "with several kHz, the coil's resistance goes way up"? Should the resistance in that case go down fi shorted? Thank you in advance

[@macwake]

@@mattia7562 Generally speaking, a coil's resistance goes up with rising frequency. In normal ohms mode, the low resistance of the coils (less than .1 Ohm) make it hard to find shorted mosfets, since they all seem to be connected through the coils, as practically everything reads short. When measuring resistance with, say, 100kHz, the coils have high resistance. This has the same effect as lifting all the coils, as you can properly measure in-circuit.

[@claytonmorgan8625]

Another great repair from the master! thanks for sharing!👍

[@ToltecMerc]

Thanks so much!

[@mm0077]

Good job and your systematic approach paid off. As usual a pleasure to watch. Thank you for sharing.

[@ToltecMerc]

Thanks! I'm glad you enjoy watching!

[@ajaks7636]

Another one you saved! Great Repair and Video!. Thank You.

[@ToltecMerc]

Thanks for stopping by! I'm glad you enjoyed. More to come!

[@bartoszk2947]

Thank you for your job and to produce this and all stuff. Great Job.

[@ToltecMerc]

You are very welcome! Thanks for watching and commenting! I do appreciate it!

[@atheerazeez6536]

Great idea to get where the problem, we learned from this video new ways to find the problem,at the end just want to say keep going.

[@ToltecMerc]

Thanks, will do!

[@ISquishWorms]

I always look forward to your videos. I like your knowledgeable approach to things.

[@ToltecMerc]

I'm happy you like them! I'm trying to make more!

[@tavros314]

thanks again for a well explained troubleshooting video

[@ToltecMerc]

My pleasure. Thanks for watching!

[@Console_Tech]

Nice tracking the problem ,great video like always.

[@ToltecMerc]

Thanks so much! I'm glad you like them!

[@damned2000]

Good idea is to measure difference in diode mode between output (switch) and control pin (like gate). In 90% cases you can detect faulty drmos without desoldering of coils.

[@ToltecMerc]

I don't think the gates are exposed to the outside on these ICs.

[@TechCommanderRepairs]

Great job, I learn something new with every video I watch. I haven't come across any PS5 with shorts on the 12v rail. I definitely know how to go about diagnosing it now though.

[@ToltecMerc]

Thank you! I hope it helps you in the future!

[@elprof101]

I was happy that the APU survived. Amazing work as always. Can't they put some protection for the APU when a mosfet is shorted ?

[@ToltecMerc]

Me too! It does seem like some kind of over-voltage crowbar should be added.

[@3absisoRA]

Got the same issue a month ago or so. And injecting voltage directed me to the shorted mosfet... And fixed

[@ToltecMerc]

Congratulations! It's a great feeling!

[@saarike]

Great repair and vid!!! Thank you. 👍

[@ToltecMerc]

I'm glad you liked it! More to come, I hope!

[@REMEDY-REPAIRS]

Amazing job man 💯👍🏾👊🏾

[@ToltecMerc]

Thank you very much!

[@highroyds]

excellent video, big thumbs up!!

[@ToltecMerc]

Thanks for the visit

[@highroyds]

@@ToltecMerc always do when a video drops 😉

[@ToltecMerc]

@@highroyds 😁

[@toolsarecool]

Another brilliant and logical troubleshooting session, thanks for sharing! Glad this was apparently not just s simple MOSFET and the internal short didn't send 12V to the APU. Also, with a .35Ohm short to ground, surely the power supply would shut down immediately, no? Your bench supply, however, may just keep going... 😛

[@ToltecMerc]

Thanks! I always connect my bench supply with current limiting set somewhat low. Maybe 1A

[@atheerazeez6536]

Good job. I like what you’re doing.And you have great ideas to follow the short, I wander if you can make video how reading short

[@nicolaslacoste9367]

I was sure that 12 volts wil lkill instantly apu. Very surprised. Good job. Best regards, Nicolas Lacoste

[@ToltecMerc]

Yeah I was thinking it had a 50-50 chance of survival. Thanks!

[@laukc4789]

another great share and work sharing ! May I know mosfet can use from different EDM model board? Thanks from Hong Hong again!

[@hphp7587]

I have experienced this on an xbox one s. Even though the source drain all showed low resistance to ground (processor resistance) on all MOSFETs due to parallel, the gate of the bad MOSFET was also short and the good MOSFETs gave 0.6v in diode mode to ground. So I didn't need to remove the coils.

[@lwcyan88]

Great job!May i know please which type of flux you're using?

[@ToltecMerc]

It is just cheap Kingbo RMA-218

[@lwcyan88]

@@ToltecMerc Cheap but it gets the job done. Thanks for the reply

[@observadore]

Cada vídeo eu aprendo mais, obrigado por ensinar.

[@pow9606]

Enjoyed. Nice and logical. 🖖

[@ToltecMerc]

Glad you liked it!

[@supercomputing942]

measure diode mode between source drain gate to find the shorted mosfet easy works 95% of the time

[@ToltecMerc]

True. These, however, are not plain MOSFETs. The gates will be internal to the package.

[@mrbridger5]

Nice job 👏

[@ToltecMerc]

Thank you very much!

[@charbelkaram2119]

Very nice job dude very nice

[@ToltecMerc]

Thank you! I’m glad you enjoyed!

[@chad1983ification]

Another great job. I have to ask have you seen/fixed 108255-1 game crashing? I've came across numerous ones and haven't found a fix yet

[@ToltecMerc]

No, I'm afraid I have not seen that error. I do hope you figure it out and share the info.

[@dkaytan]

Didnt the cod3r released a video about this?

[@chad1983ification]

@DeKay510 if he did please tell me which video it is

[@dkaytan]

@@chad1983ification its one of his latest. Converted disk version into digital.

[@chad1983ification]

@@dkaytan that's 101312-8

[@rfr653]

Good job mate 👍

[@ToltecMerc]

Thank you for the visit!

[@эльдаргаджиев-б5ф]

Excellent

[@ToltecMerc]

Thanks so much!

[@albertdavis1882]

Awesome video

[@ToltecMerc]

Thanks!

[@cristiansantos5742]

O senhor é "fogo na canjica" !! Obrigado

[@fixingmoddingbuilding]

Thanks for the video, I have one with a similar issue, is this the best way to test for the short? Thanks

[@ToltecMerc]

I think a better way is to do as someone else commented below. Next time I will try an ESR meter that I have that runs at 100khz. Hopefully the coils will give a high impedance at that frequency and I will be able to see a shorted MOSFET without the APU low resistance interfering

[@fixingmoddingbuilding]

@@ToltecMerc Thank you

[@alal-nh9np]

What temps do you set your hot air and soldering iron to?

[@4theplayer500]

Is a great working 🙂🙂

[@ToltecMerc]

Thanks 🙂

[@diemiesepetra]

I'm kind of a beginner but im wondering if it would be possible in such case to inject voltage 1v at 1amp at the input and output of one of the mosfets ? Hence they are in paralell shouldnt the defective one light up under the thermal cam?

[@lestermoreno9437]

Did you find out the real cause why that mosfet shorted?

[@josef19dz]

You are the Best

[@ToltecMerc]

That's very kind of you!

[@ginopino8421]

Hi I have ps5 model CFI-1016A with problem all USB port type A , first: it not recognize the controller, second: i have measure all port type A and not arrive 5 volt, but only 0 volt !! Blu-ray port on board only 5 volt , but not 12 volt , infact bluray not working then Fan connector on board have 12 volt Then connector near fan only 5 volt and not 12 volt ! I don’t know if it’s a cpu problem or what else? you can help me ? Thanks

[@ToltecMerc]

Check all fuses on PCB

[@ginopino8421]

@@ToltecMerc i have done onlyone fuse is dead the names is F5402 itry to change and i see whats happends for now thanks

[@nomaleon8981]

👍👍👍

[@ToltecMerc]

Thank you!

[@jermickastaley2773]

How do you know if it is dead

[@ToltecMerc]

The APU? There is often a crack in the surface

[@jay-gt8re]

What is that power thing youre using? Im new to this stuff and need one

[@ToltecMerc]

I'm not sure what you mean. The multi-meter?

[@jay-gt8re]

@ToltecMerc is that what that is? The white box thing you used in the start of the video to that you found the short with

[@ToltecMerc]

@@jay-gt8re oh. That was my bench power supply. It's a two channel adjustable bench power supply. It can output from 0-32V and up to 3A on each channel. Useful for testing various devices.

[@jay-gt8re]

@ToltecMerc I definitely need one I think. I have a dead ps5, cannot for the life of me figure out why. Guy said he dipped it in a bucket of distilled pure water to clean the board and it never turned on afterward.

[@mahmoudsaid153]

👍👍👍👍

[@MehvarSanaat]

plese open subtittile

[@ToltecMerc]

KZbin should automatically generate those from the sound but it could take some time.

[@islamcoherencepertinence.7226]

Thank you very much from France :)

[@ToltecMerc]

You're welcome!

[@muratrisvan]

Thanx master ❤️🇹🇷

[@ToltecMerc]

Thank You!