Jump to content
OGXbox.com

Video signal from Xbox keeps getting lost according to my TV


Recommended Posts

When using/playing the MS dashboard, Halo CE, or JSRF, there's intermittent signal loss, or at least the behaviour of the TV is if the signal is lost (warning pops up). The audio will continue to work though (if plugged in through the reciever). I've got a video of this happening: Youtube video of signal loss.

Setups I've tried:

  • Xbox -> Chimeric -> Reciever -> TV (issue happens)
  • Xbox -> Cheap component cable + cheap ADC with HDMI output -> Reciever -> TV (issue happens)
  • Xbox -> Chimeric -> directly to TV (issue happens)
  • Xbox -> Cheap component cable + cheap ADC with HDMI output ->  directly to TV (issue happens)
  • Xbox -> Chimeric -> Capture card -> Laptop (no issue)
  • Xbox -> Chimeric -> Cheap projector (no issue)
  • Xbox -> Chimeric -> Capture card (Elgato HD60 S) -> Laptop (no issue) & passthrough to TV (issue happens)
  • Xbox -> Chimeric -> Capture card (Elgato HD60 S) -> Laptop (no issue) & passthrough to reciever and then TV (issue happens)
  • Xbox -> Composite -> Cheap projector (no issue)

Xbox details:

  • PAL (Au)
  • Rev 1.0
  • Delta DPSN-96AP-1
  • Aladdin XT with IND
  • Unleash X
  • Fully recapped PSU (didn't fix the issue)
  • Replaced the large motherboard capacitors and a couple of the small ones next to the video DAC (didn't fix the issue)
  • Unused Thompson DVD drive (un/plugged doesn't matter)
  • WD 1TB Blue connected through an IDE-SATA (ofc) and 80 wire IDE cable. Molex -> SATA power is on the SATA-IDE card. Still had the same issue with the original WD HDD
  • EEPROM set to NTSC
  • Video output with 480p, and 720p enabled (480i seems to be issue free when using the Chimeric adaptor)
  • Audio output with surround, DD, and DTS enabled
  • No visible signs of trace rot, no signs of capcitors leaking, all removed capacitors looked to be in good condition and tested well.

TV is a Sony KD-65X9000F (Au version of X90F)

TV settings I've tried (in case auto detection is freaking out or something):

  • Picture mode - Game
  • Auto picture mode - Off
  • Black adjust - Off
  • Advanced contrast enhancer - Off
  • Auto widescreen - Off
  • Auto over/underscan - Off
  • HDR - Off
  • HDMI video range - Tried limited and full
  • Colour space - Tried auto and sRGB
  • "Motionflow" (not exactly, but effectively motion interpolation) - Off
  • "Reality creation" (upscaling) - Off
  • Smooth gradation - Off
  • "Live colour" (Colour processing incl. fake HDR) - Off

I've heard Deep Colour (introduced in HDMI 1.3) has caused issues in the past, but I can't find an option to turn it off anywhere, not even in the developer options.

Reciever is Onkyo TX-SR494.

Have tried multiple known good HDMI cables that can definitely carry 2.0 bandwidth.

The Component -> HDMI DAC has an external power supply. This is it: https://www.amazon.com.au/gp/product/B07JYHQRDJ

I'm somewhat convinced that either the signal from the Xbox is borked, don't know if it's the PSU drooping, there's electrical noise, some thermal protection very briefly kicks in, or the motherboard capacitors I haven't replaced yet.

I don't have an oscilloscope nor a way to monitor the HDMI signal to be able to further troubleshoot what exactly is going wrong. I'm after any more potential troubleshooting ideas, or knowledge.

Edited by HepaUnfilter
Link to comment
Share on other sites

try TV firmware update

and keep those image enhancements off, it makes image less accurate.

For HDMI range, i think limited is suitable, because component signal uses limited range. It makes black crushed or gray color, when using incorrect setting, very important.

 

 

Edited by prtscn
Link to comment
Share on other sites

Looks like the TV is the issue as your Projector and laptop don't have the same problem when displaying the Xbox image.

You could rule out the Xbox by testing with a different Xbox.

5 hours ago, HepaUnfilter said:

I'm somewhat convinced that either the signal from the Xbox is borked, don't know if it's the PSU drooping, there's electrical noise, some thermal protection very briefly kicks in, or the motherboard capacitors I haven't replaced yet.

I would replace the all the main filter capacitors next to the heat sink as they filter the 1.5 volt supply for the CPU/GPU, Capacitors can be faulty even when they look good.

 

Cheers

SS Dave


Soft modding is like masturbating, It gets the job done but it's nothing like the real thing.
 

Link to comment
Share on other sites

2 hours ago, prtscn said:

try TV firmware update

The TV was released in 2018, so the firmware has hardened over time, and it's on the lastest version

2 hours ago, prtscn said:

and keep those image enhancements off, it makes image less accurate.

Yup, I normally do, especially for games

2 hours ago, prtscn said:

For HDMI range, i think limited is suitable, because component signal uses limited range. It makes black crushed or gray color, when using incorrect setting, very important.

Yeha, I tried both incase the TV wasn't happy

1 hour ago, SS_Dave said:

Looks like the TV is the issue as your Projector and laptop don't have the same problem when displaying the Xbox image.

It's probably picky about the signal it's getting, but I wouldn't say it's the nessecarily the root cause. It's not like I have issues with modern HDMI native devices. At the same time the OG Xbox isn't that old, so I expect it to be able to put out a clean component signal (at least WRT to sync)

1 hour ago, SS_Dave said:

You could rule out the Xbox by testing with a different Xbox.

Yeah, I'm going to revive a 1.4 with RAM accidentally soldered the wrong way

1 hour ago, SS_Dave said:

I would replace the all the main filter capacitors next to the heat sink as they filter the 1.5 volt supply for the CPU/GPU, Capacitors can be faulty even when they look good.

Yup, already have. I'm aware, and I don't trust them to last either given the age of the system.

I've replaced the following on the motherboard:

  • 3300uF
  • 1500uF
  • 680uF
  • 100uF
  • 47uF

I haven't yet replaced all the smaller caps, nor the clock cap.

Link to comment
Share on other sites

Posted (edited)
On 8/12/2022 at 10:59 AM, prtscn said:

xbox has nothing to do with it. Since chimera adapter is responsible for sending signals not Xbox.

hdmi handshake problem

Maybe, it's entirely possible that even if the MS9282 has its own timing, that the video signal timing influences the output. Either the timing is reset quite frequently, or each individual frame is derived by the component sync. I don't have access to the data sheet so I'm speculating, all we publicly have is a just detailed enough for sales block diagram. http://en.macrosilicon.com/info.asp?base_id=2&third_id=3

 

In other news, I tested both the chimeric adaptor and the externally powered adaptor with a LG CX. Both had resetting issues too. Using the Elgato HD60S seemed to help stabilise it. Also it seemed to get a little better as the Xbox warmed up? Could have also been us moving the cables around or closing the Xbox lid better.

I didn't get much time to try desolder the RAM on the 1.4, I'll try again when I next have time.

EDIT: Also tried turning off Ultra HD Deep Colour on the CX, didn't make a difference.

EDIT 2: The CX also reset a lot in the modded dashboard during 480I and 480P when we first turned it on.

Edited by HepaUnfilter
Link to comment
Share on other sites

I've been having exactly the same problem for over a year now. I searched the internet for a solution to this issue fruitlessly but I think today I finally figured out where the problem lies, at least on my end. Maybe it's the same for you too. Turns out my TV just hates the 480p signal for some reason, when I'm in the Dashboard (Xbmc4Gamers) or in a game that runs in 720p it runs without issue. Hopefully this post if of some help to you.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

Board Life Status


Board startup date: April 23, 2017 12:45:48
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.