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PlayStation 5 Ultimate Troubleshooting Guide - Fixing Your Console Like a Pro
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- čas přidán 26. 07. 2024
- In this movie i am going to tell you how to troubleshoot and fix common issues with your PS5, turning you into a console repair expert.
This tutorial will guide you through the troubleshooting process, ensuring you can get back to your gaming adventures in no time.
Subscribe to my channel, hit the notification bell, and gain the confidence to tackle PlayStation 5 repairs with ease. Get ready to fix your console like a pro!
Images sources:
Fritzchens Fritz - www.flickr.com/photos/1305612...
Ifixit - www.ifixit.com
▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
00:00 - Intro
00:45 - Flowdiagram troubleshooting
03:21 - Front architecture
05:28 - Back architecture
07:13 - Standby voltages - front
11:08 - Standby voltages - back
12:49 - Power on voltages - front
13:30 - Power on voltages - back
14:30 - Warrenty seal and screws
15:07 - Liquid metal
15:40 - Check soldering
16:07 - Standy boot sequence
20:38 - Dialog Power Management IC
22:26 - TPS53219A - Single buck controller
23:59 - Southbridge
25:07 - BIOS IC - W25Q16JVSNIM
29:44 - Southbridge - Backside
30:41 - 3.3V STBY voltage regulator
31:31 - Ethernet port
32:30 - Standby voltages near HDMI encoder
33:03 - SBV IC - voltage regulator - TLV62090RGTT
34:53 - 3.3V voltage regulator
35:13 - Standby and power on voltages
35:44 - Wifi module
36:17 - 5V and 3.3V standby voltages
36:52 - HDMI encoder IC
37:57 - White light of death
38:15 - HDMI pins diode measurements
38:59 - Blue light of death
40:50 - Error updating firmware with USB stick
41:19 - USB - TPS2001D - current limited IC
41:49 - +1.0 Vcore
42:36 - NCP25160 - VRM mosfet driver
44:06 - Capacitors near power supply
44:41 - +1.35 Vmem
47:57 - SSD voltage regulator
48:31 - Standby and power on voltages
49:18 - SSD controller and NAND flash memory
49:54 - SSD controller main fuse
50:53 - APU
52:10 - USB Type-C Gbps redriver IC
52:48 - RTC Battery 3.3V
53:46 - RAM troubleshooting
54:43 - Disc drive board
55:09 - Fuses marking code
55:32 - Outro
You can now download the presentation of video:
PlayStation 5 Ultimate Troubleshooting Guide - Fixing Your Console Like a Pro
Link: drive.google.com/drive/folders/1tDKTyixTMOpvW-vhEHqDcQv8tNMkYSMP
Congrats and thank you for all the work! Super helpful information!
muvhas gracias amigo, nuevo suscriptor
@@danielluna9761 gracias Amigo :) Gr. Jim
Do you have a schematic for the mainboard for reference?
@@RebootYourDevice Hi there are no schematics available for PS5 :(
The most powerful video I have ever watched in my life. You summarized most of the things in less than an hour. You are great.
Thank you for watching. Gr. Jim
I can't explain how useful this guide was. You are truly a legend keep up the great work.
Thank you for watching. Gr. Jim
No way. This is the storage one of the grey video I have seen. Good bless you.
Thanks a lot, I repair Videogames over 20 years, and with your guide it is awesome, really great job, keep up the good work!!!
Wow! Thank you for this kind feedback! Gr. Jim
One of the best I have seen so far. Thank you so much 🙏 . I really appreciate that you shared it with the community. Well done.
With this incredible guide, I managed to get a console that had been broken for a long time, great guide, it's perfect
Wow that is big compliment! I am glad that my video could help you to troubleshoot and repair the console. Gr. Jim
You are truly a legend and I really hope this channel gets very popular. Also appreciated the pdf guides. Thanks again.
Thank you for nice feedback! Gr. Jim
where are you finding pdf guides?
@@brandonkick this pdf guide is not released yet when this channel hits +2k subscribers it will be released. I will add a post when it is available. Gr. Jim
Holly sh!t... I just saw your amazing video and it blew me away!!! That is by far the best explanation and guide if seen when it comes to fixing game consoles! 👌👍
That's definitely god level! Respect!
I'll follow your channel and I'm very excited to see what's coming next. Keep up the good work. And also thank you for sharing the pdf guides, absolutely amazing content! 🙏😉
There's is another guy who's doing repairs on entertainment electronics on his CZcams channel. Mainly game consoles like Playstations, Xbox and Switch. He don't explain to much in his videos but showing the hole repair process. Starting by analysing the problem (same route like your guide in this video I think) and finally repair / replace / fix the broken part. He's also fixing ripped off traces and pads on the pcb boards. Most professional and cleanest soldering jobs I've ever seen. You both guys should start a joint venture! 😉
Would be the best combination of explaining and repairing videos! 😜
If you're interested to check his content, his channel is named PCB Solder (Berlin)...
Thanks again for the this amazing and informative video my friend
Greetings from Germany
Hi, Thank you for this extended positive feedback! I'm happy that you like the content. I already following PCB Solder for a while now and i agree he is a real professional with very good rework skills. It is good that we can learn from eachother to bring your own skills to a higher level. Gr. Jim
I recently just found your channel, and WOW is this incredible stuff! The information here is just so darn valuable, and I'm so thankful you've taken the time to create it and share it with us all!
I am a former arcade technician. I have been doing software engineering for the past several years. I love to learn about things, fix things, really enjoy soldering and fault finding.
Just two weeks ago, I repaired my first PS5 console by installing a new HDMI port and giving the console a good cleaning of all dust / debris build up and maintenance on the liquid metal. The console now works wonderfully. I have ordered my second broken console, a power off situation, and it should be here soon. I am excited to start figuring out what is wrong with it! This guide will be so very useful for me!
Hi, Thank you very much for this feedback. I also started this hobby when i first repaired a broken speaker for my uncle 30 years ago, i like fault finding because i feel like a investigator trying to solve a crime :) Gr. Jim
Thank you for the info and detailed guide. Love the content and hope the channel grows a lot.
Thank you! Gr. Jim
Amazing. Best info on this console I have ever seen. Look forward to more like this!
Thank you for watching. Gr. Jim
One of the best videos out there! Thank you for all you do for the console repair scene!
Thank you for watching. Gr. Jim
this is insane man super huge props on all of the hard work you did on this, consolidating your knowledge for others to digest is never easy and doing so with this much information is incredible thank you again for this
Thank you for watching and this nice feedback! :) Gr. Jim
this is the best video have ever seen for repairing consoles 100% your the first person to do this,thanks so much,now we know where to look. please make for the ps4 too👏👏👏👏👏👏👏
Thank you for watching, PS4 is still on the to do list :) Gr. Jim
Incredible! Thank you!
Great video! This is helping fill the holes I have in my understanding of the PS5. Awesome job!
Thank you for your positive feedback. Gr. Jim
Thank you bro, I don’t find any normal video about ps5 fix but next I find you! A wish you a good life and strong health for you and your family😊
Hi, i am this video helped you out. Thanks for watching. Gr. Jim
Bro is a whole school 😂👌🏻🔥
Thanks for the information my guy keep it up, Big respect for people like you ❤
Thank you for watching :) gr. Jim
Thank you for sharing and well done for this thorough and thoughtful guide.
Thank you for watching. Gr. Jim
Thank you very much! Your methodical approach is astounding. Keep up the good work!
Thank you for this nice feedback. Gr. Jim
Thank you, i will be needing this
Impressive !
You are really good, one of the best in the category. Keep it up. Thank you and Congratulations!
Please more videos.
Thanks for Sharing, that was very Useful, continue your way, I'm sure your channel will be popular soon.
Thank you for watching. Gr. Jim
Thank you for sharing!
You are so great!!! Big respect for sharing such a informative repair manual!!!!
Thank you for watching. Gr. Jim
Great job. Thanks for all your hard work and time
Thank you for watching
I was looking for something similar to this but this is much better than what I was looking for, you are great for sharing your knowledge, thank you :)
Thank you for watching. Gr. Jim
Your channel is truly gold. Your work is stunning. So complete and clear! Thank you so much. Don't hesitate to put a link to collect a small tip, I'm sure many would be delighted to offer you a little coffee ;)
Hi thank you very much for the tip :) Thankl you for watching! Gr. Jim
Fantastic guide. Thanks for all your hard work
Thank you for watching. Gr. Jim
Just wow! This is the boss level diagnostics! Thank you!
Thank you for watching. Gr. Jim
Amazing! Thank you very much for sharing your experience 👌 🤝
Thank you for watching. Gr. Jim
great work to save in a file and write down every useful information. you deserve 10000 likes.
Thank you for your nice feedback. Best wishes. Gr. Jim
You my friend are a living legend, thank you for the time you dedicate to helping the community, WOW
Thank you for your kind reply. Your channel was also where i learned alot about consoles also thank you! Gr. Jim
Amazing work!
Thank you for watching. Gr. jim
Total legend. This channel should be much more popular than it currently is Titanium level info. Thanks a million.
Thank you for your nice feedback :) . Gr. Jim
can't agree more
Appreciate it bro. Fixed my ic with this rundown.
I am glad this video helped you, thank you for watching. Gr. Jim
Ram resistance relative to ground can be more than 40ohms, it depends on the manufacturer of the ram. Samsung ram measures low, 30-50ohms, where as micron seems to measure around +100 ohms, all of which are fine and working.
Thank you for your extra information. I pinned this remark. Thank you for watching. Gr. Jim
best video about PS5. keep it up your hardwork. thanks
Thank you for watching. Gr. Jim
GREAT INFORMATION ,. THANKS JIMMY
Thank you for watching. Gr. Jim
very smart ,thank you
You are an absolute legend.
This video made me realize I probably have faulty memory, thanks for saving me a lot of time.
I measure 30 ohms on 1 bank (the bottom one next to F3501) The other ones measure 0.5 ohms and 20 ohms so I guess I'll have to start pulling off memory?
Subscribed and thanks again, this is a Godsend!
Thank you for watching my video's. Glad it could help you with the diagnosing proces.
Amazing video!
Thank you for watching
this helps great thank you very much i hope to see more of this vids
Thank you for watching. Gr. Jim
this is gold, amazing video, something similar to this for the xbox series x, s will be awesome, greetings from Costa Rica, thanks for sharing this is gold seriously :)
Thank you for your feedback xbox series x is on my todo list. Thank you for watching my video's. Gr. Jimmy.
excelent video love you!
Thank you for watching.
Thank you again!!
Thank you for watching. Gr. Jim
Fantastic video!! Compliment!!!
Thank you for watching! Gr. Jim
great work,thank you
Thanks for watching. Gr. Jim
You make the best videos!
Thank you very much. Gr. Jim
Wow. Great video. You have one more subscriber.
Thank you for wathing. Gr. Jim
Thanks , waiting for ps4 edition of this video 😊 and soon xbox and others
This is gold
Oh man, you are amazing. This helps so much. Thank you. For sure subbed. Keep going.
Thank you Kiki! I am also a fan and subscriber of your channel nice to see your comment :) Gr. Jim
@@fixmyappjim wow, great, thanks :) The world is small :)
Good video For beginners You do good Job Explaining How things work Keep the good videos coming bro
Thank you very much! Gr. Jim
Wonderful, thank you very much
Thank you for watching. Gr. Jim
You're cool! I express my gratitude from our community!
Thank you very much for this nice feedback. Gr. Jim
Thank you for your time and all informations 👏 🎩 really appreciate
Thank you for watching. Gr. Jim
this guide was useful . You are truly a legend keep up the great work.
can you share with us the ps5 pcb stdby voltage photos
Thank you very much. I will release the pictures as soon as i reach the target views that i have set for this video. I will post a comment when it is released. Gr. Jim
Thanks bro, you're amazing
Thank you for watching! Gr. Jim
Please make more guides like this. I run an electronics repair company and would absolutely love to show these videos to my technicians to better train them. An Xbox Series X guide would be super helpful as well. Furthermore, if you have any advice on PS5s that are crashing out of games with error code CE-108255-1 I would love to hear it. My shop has had a few of them come in for repair and none of my staff can tell me an answer as to what can solve the issue. Would love to hear your thoughts. Great work!!!
Hi, Thank you for your kind feedback! I will try to make more these video's in the future. If the PS5 is crashing during the game it could be a temperature problem or a defect RAM / or Flash memory problem it also could be component that is failing these problems are hard to diagnose. Maybe you could read the error codes by soldering serial wires to read the southbridge error codes maybe it could indicate a faulty component. Gr. Jim
the best ps5 fix video.
Thank you :)
Thanks again, I was talking to you over email!
Hi Aidan, Wauw, thank you for your donation and supporting the channel. Gr. Jim
Fantastic video and guide. Small error I noticed in the guide is the 0.8v on the cap right next to the encoder IC is 1.7v, not 0.8v. The 1.7V trace runs to this cap.
Thank you for your extra information about the voltage. You are right! The second last capacitor is 0.8V The last capacitor near the encoder IC is 1.7V. Gr. Jim
Thanks
Thank you for watching. Gr. Jim
nice work - thx a lot!
i wondered what info you have on the missing sheet 18 ?
Hi i don't know what you mean i do see sheet 18 about the southbridge? Gr. Jim
Thank you, thank you very much, excellent explanation to understand how the PS5 works, it would be interesting. I don't know if fault diagnosis can be done on the PS5 via UART.
Uart would be nice if it is possible for ps5. Thank you for your nice feedback. Gr. Jim
Thank you so much, very helpful!! On 36:50 min, 3.3V I am getting on Top Left leg. I don't think is on the bottom ...
If i am correct both pin upper and lower are 3.3V. Thank you for your feedback. Gr. Jim
Great guide, Is there one for the next version board? EDM-020 ?
Hi, Thank you for watching, for now edm-20 is not on my list because the analysis is the same only the components locations are different. If i get a edm-20 board i will try to make an video, can not promise it :). Gr. Jim
Goodnight great Video, can you do a troubleshooting guide for the slim?
Slim is new maybe in the future. Gr. Jim
Amazing!!! Do you have or plan to do a similar guide for the PS4?
PS4 is on my to do list because there are no schematics for the PS4 i can't really go in depth but will try. Gr. Jim
great video. any chance you can do one for the newer EDM-041 board?
Hi for now i don't have plans to do that but you can apply the info also on that board as long as you can identify the main components. Gr. Jim
Thanks for this! It's probably the most informative video out there for console repair. Do you think you could provide the slides for this as I'd look to have it printed out?
Also, do you have a way I can contact you to tickle your brain? Thanks again.
Thank you for watching. When this channel hits +2k subscribers i will be releasing this presentation as a pdf to download. As for contact for now it's only via CZcams :) Gr. Jim
Huge work brother 👍 Fuse F7001 marked T its 5 Amp 24 Volts right? Thank you for video ✌✌✌
Hi, yes you are right. Gr. Jim
What a fantastic video! Please can you tell me what sort of resistance to ground the capacitors under the APU should be? Nobody seems to give much information, other than saying the whole APU area is very low impedance. The input 12V rail on my board is not shorted, but I'm concerned about the coils on the APU side and the APU capacitors..... Any help would be greatly appreciated!
GPU has a very low resistance to ground so between 1 - 10 ohm would be ok. Gr. Jim
That is only half should be uart code error reading and resistance check on component like cpu wifi/bt diagnostic element like memory checking on thermovision but still very good job
Thank you, indeed there are more tooling to do troubleshooting but even for me UART communication is a new subject. Thank you for your feedback. Gr. Jim
@@fixmyappjim ah an one more elements like cpu gpu has reaction for temperature on power resistance is changing on broken not
Amazing guide, thank you. IS there anyway to get the presentation for this one I like to print it and have it as i work.
Thank you for watching. When this channel hits +2k subscribers i will be releasing this presentation as a pdf to download :) Gr. Jim
Nice! Good luck. I am already a sub! Thanks again
hi do you have one for edm-020
At 38:58 you have incorrect information. The diode is a high-speed switching diode, not a zener. It's a Toshiba 1SS352, but also a Nexperia BAS-316 may be present.
Thank for your rectification and extra information, i did not know that. Gr. Jim
Very good video!
What could be with green video output crash for ps5? When playing high demand games?
Could it be hdmi encoder?
Thank you for watching. Green screen is new for me, but high demand maybe a thermal issue? Try checking the metal liquid of the APU and check if there are dry spots. Be carefull with liquid metal is can create shorts on the mainboard. Gr. Jim
@@fixmyappjim Thanks for reply!
I checked the liquid metal and add more to be safe its not making porblems, but still the same issue. It seems the thermals are the case but im thinking one of components are going bad and making this issue, but im not sure what else could do that if not APU GPU side.
I have seen in internet same issue if searching ps5 green screen crash, but havent found solution.
NEDERLAND!
Hello, thank you so much for this video. Is there a way to download the pdf presentation like how you did for the Nintendo Switch video?
Hi i will make the pdf available but due to the target that i set for this video i have to wait untill the channel grows more but i will eventually publish it. I will make an post in the community when it is published. Thank you for your feedback. Gr. Jim
@fixmyappjim That it completely understandable. Thank you for all of your hard work!
Thanks very informative. So I am missing the 3.3V STB at the capacitors and I have a couple caps that are reading short on the back of south bridge ic. The PS5 is dead, but I do have the 12v, 5v, 3.3v, 2v, 1.8v rails on the back of the board. I didn’t test the front yet. Does this mean my south bridge is gone and needs replacing? The PS5 had damaged usb port in the back and I believe that is what possibly did it.
It could me the Southbridge IC but it could also be a capacitor that can be shorted. I would inject 1V at 2 Amps to the shorted capacitor and check which component get's hot, check with thermal camera or alcohol. Gr. Jim
ps5 dvd drive board - repair guide - can you make one
Hi, for now i don't have plans to do that i will focus on xbox, sony, nintendo switch lite and some general repair video's. Thank you for your feedback. Gr. Jim
in 36:30 i don´t have 3,3 stby and 1.8 stby.. can you know what cause this problem? thanks a lot
thank you for all bro, I will want ask you a question: in 30:41 - 3.3V STBY voltage regulator you say that 3.3V is generate in that voltage regulator, butt I have a new ps5 that work and I not found 3.3V there, but 1.8V. You can check this?
Hi thank you for your info. I don't have a ps5 board to check this voltage now but the Southbridge also use 1.8V STBY so i think you are right. Gr. Jim
Hi Jimmy at 36:42 I have both 5 volt standbys but non of the 3.3 or 1.8. Would u say there is an error in that area and need to replace a part?
Hi, if the layout of the components are the same then yes these 3.3V and 1.8V are standby voltages and are needed, check board if you can find them or check resistance / shorts. Gr. Jim
Thank you very much, do you have something like that, but for PS4?
It is in my to do list :)
@@fixmyappjim ok, very grateful for your work for people. Greetings
Hello my friend, how are you? We want the same elegant and wonderful explanation on the slim PlayStation 4
Hi, Thank you for your feedback. PS4 is on my todo list. Gr. Jim
@@fixmyappjim First, thank you very much for your response. This shows that you are a sophisticated and understanding person. Thank you again. Do you have a phone number or WhatsApp? I would like to contact you, please. I work in the same field, hardware maintenance and video games. I have a workshop at home and at the same time I have a hobby of modifying video games.
Please upload a ps4 ultimate repairing ❤❤
Hi on my to do list :)
Very good info, where can download this slide file like you did it for Switch Nintendo.
Tq
Wong ( Malaysia )😊
I will make all presentation available when the channel hits the 1k subscribers. :) gr. Jim
@@fixmyappjim congrats for the 1k
Thank you, this is indeed a milestone and i am happy. Let try reach the next milestone. Gr. Jim @@mohannadsadeddin8201
Great guide. My playstation fan does not spin, there is no power, it depends on which chip, where does it get power from?
Hi. I don't know exactly but i suspect that the PWM signal comes from the APU. Check if there is a PWM signal present with an oscilloscope, also if this signal is not present then the fam should spin on max rpm. If it is not spinning check the powerrail that supllies the power to the fan. Gr. Jim
👍👍👍
Hey everyone quick question in standby mode f7002 I get 3.3v and 5.1v but exactly place on the other side of the board I get 1.8v and 5.1v on standby. The video shows that I should also be getting 3.3v but I’m not.
I don't know what the fault is in your case, but there are some revisions of the board it can be ok if not try to analyse the +3.3V circuit. Gr. Jim
Hi there. Can I please ask whether or not there should be a clock signal present on pin 6 of the bios chip and at the 32.768khz crystal oscillator at all times? As you said it receives power from the 3V battery when the console is not plugged in. I'm not seeing this signal on the oscilloscope. Any help would be greatly appreciated. Thank you.
Hi PIN 6 of the BIOS chip should start when the console is booting up, when you press the power button the clock signal should be generated to communicate with the BIOS IC. The 32.768khz crystal oscillator should always be generating this frequency. It is used for the real time clock. Check is the coin cell battery is present and voltage is +- 3V if battery is ok it should generate this frequency, if not present you have to solve this problem first as the Sourthbridge will not work without a clock signal. Gr. Jim
Thank you so much once again mate. My problem is definitely in this area. I have voltages of approx 3.17 very close to the crystal, but none actually on the crystal itself, therefore it does not produce the frequency. I changed the South bridge, but no change. Deep down I knew it's because of the missing clock signal. I even see the attempt of data transfer on an oscilloscope between the bios chip and South bridge...but without the clock, everything shuts down. Thank you brother!
Great guide, I have a problem with my PS5. Every single PS5 disc game I try to load up gives me an error CE-108255-1. Ive done fresh install and reinitilise on the system. The console installs the game discs ok, but every PS5 game gives that error and won't even boot. Its strange because I tried PS4 games and they work perfectly on it...any idea what could be the problem? Many thanks and keep up the great work
Hi i never had this fault it seems to be a software problem or the cd drive is faulty. Keep in mind that the blue ray drive is married to the console. If you gonna replace the drive you also have to swap the ic to the new drive. Gr. Jim
Thanks a lot mate for this detailed video. Its awesome. At 30:50, instead of having 3.3v I have 1.8v there for an EDM-010 board and at 36:33, I dont have the 1.8v STB voltage. Other than this, everything tests ok with STB and PowerON voltages. Moreover, the lower voltages near HDMI IC is absent. For the stanby boot sequence, I have 80-100mA power draw, holds here for few seconds and then it goes to 0mA. The console beeps every 10seconds but no light. Can you direct me?
Hi, This is correctly 1.8V can be measured near F7002. Because this is an other revision of the ps5 board. It could be a bios / SSD / Memory issue, also you can solder serial wires to read the UART error codes. See youtube for a tutorial about reading error codes. Gr. Jim
@fixmyappjim Thanks for your reply. UART showed "Post secure Loader Error 2 - CE-105629-3 SCE_NP_DRM_ERROR_UNKNOWN_VERSION". Do I'm guessing ssd?
@@DrCryogenic DRM, or Digital Rights Management, in the context of the PlayStation 5 (PS5), refers to the technology and measures implemented by Sony to protect copyrighted content on the console. So indeed it could be firmware / ssd related.
@@fixmyappjim thanks a lot 😊
First of all thank you for great video!
On my PS5, instead of 3.3V there is 1.8V on the voltage regulator output (30:52 in video). It is designated as SBVA T107F but I can't find it anywhere to buy. Is it OK to use TLV62090RGTT on that place?
Best regards,
Marko
Hi, This is correctly 1.8V can be measured near F7002. Because this is an other revision of the ps5 board. If i am correct SBVA T107F = TLV62090RGTT
Thank you very much on your answer! @@fixmyappjim
My revision of board is EDM-010. As I understood on some forum voltage regulator output (picture on 30:52 in your video) should be 3.3V on EDM-010 boards, and 1.8V on EDM-020. So I am not sure should I change my chip or no.
Also do you maybe know what are the values of resistors on the left side of the SBVA T107F chip? I think that I burned some of them because now my output voltage from regulator is 0.9V...
@@markoaksentijevic1097 Hi i don't have a mainboard now to test the voltage. The TLV62090RGTT IC is a cheap ic to replace just to be sure. 3.3V and 1.8 volt are valid voltage values but i can't say in your case if the voltage is correct. I don't know the resistor value :( also i don't have a donor card to check it for you :( Gr. Jim
how do you tell which direction the traces are delivering current?
Hi on all traces the current goes. It will find the direction with the lowest resistance or lower voltage difference. Gr. Jim
Hi Master, I've a ps5 that no work. I've missing 1.8V on the capacitor at 36:28 time. I will want ask you if this voltage is generetade by hdmi encoder panasonic or if you can say me who is to generate it. There isn't short on this line. Thank you
Hi, near the hdmi encoder there is a regulator that generate 1.8v. Also the sbv ic generate 1.9v. Gr. Jim
@@fixmyappjim I checked standby voltage near hdmi encoder and I missed 1.7V 0.8V and 3.3V but there aren't shorts. It's possibile that the southbrige no ability this lines?