No video

[WorldFormula]

Well I screwed the polarity over while trying to power something off the 12v rail under the PSU plug. The ANA chip fried like it was its job and now the xbox 360 turns on perfectly okay, sounds come out and everything, but there is no video. Heatgun the HANA/ANA chip, like that one guy said. That is the guaranteed cause.

[gzetski]

Why is this thread even here? audio & no video, or video but no audio has everything to do with the GPU not making contact in the lower left corner. PLS, do some research before posting this crap guys. This is something that can be fixed with a reflow of the GPU, and not by heatgunning the ana/hana/southbridge. all you're doing with the heatgun is warping the board to where it may or may not make contact. 90% of the time its the GPU. i fix these consoles for a living, 5+ per day, and I can tell you that x-clamp replacement and heatguns only make it worse. penny tricks, towel tricks, toothpicks in fans, drop tricks, and many more are a band-aid - they address the symptoms rather than the cause. If your xbox is less than 3 years old, don't mess with it, if you have a good seal on it, send it back to M$, they have been getting better and you should have it back in 2 weeks. And they extend the warranty after they fix it. if 3 years+ or bad seal, have it reflowed. a heatgun is not a substitute for $$$ worth of equipment and experience.

Anyway, to recap, and FYI:

its rarely the ana/hana
its rarely the southbridge
its usually the gpu or ram chips
its easy to fix if you know what you're doing - that means no heat gun, towels, trash bags, toothpicks, x-clamp replacements, etc..
A/V cables do go bad, giving you audio and no video and vice versa
the older your xbox, the easier and more permanent the fix

questions, comments, problems & grievances are all welcome

[Wilhelm]

Why is this thread even here? audio & no video, or video but no audio has everything to do with the GPU not making contact in the lower left corner. PLS, do some research before posting this crap guys. This is something that can be fixed with a reflow of the GPU, and not by heatgunning the ana/hana/southbridge. all you're doing with the heatgun is warping the board to where it may or may not make contact. 90% of the time its the GPU. i fix these consoles for a living, 5+ per day, and I can tell you that x-clamp replacement and heatguns only make it worse. penny tricks, towel tricks, toothpicks in fans, drop tricks, and many more are a band-aid - they address the symptoms rather than the cause. If your xbox is less than 3 years old, don't mess with it, if you have a good seal on it, send it back to M$, they have been getting better and you should have it back in 2 weeks. And they extend the warranty after they fix it. if 3 years+ or bad seal, have it reflowed. a heatgun is not a substitute for $$$ worth of equipment and experience.

Anyway, to recap, and FYI:

its rarely the ana/hana
its rarely the southbridge
its usually the gpu or ram chips
its easy to fix if you know what you're doing - that means no heat gun, towels, trash bags, toothpicks, x-clamp replacements, etc..
A/V cables do go bad, giving you audio and no video and vice versa
the older your xbox, the easier and more permanent the fix

questions, comments, problems & grievances are all welcome

This is not totally true:

If the mainboard is a Xenon there is a 99.99% chance that it is caused by a cold joint under the GPU in the outer part which is facing the ANA chip(the ERAM die is there as well).
In this case it cannot be the Encoder/ANA chip as it has got pins, no BGA and it is nearly impossible for it to develop cold joints.

However if the console is an HDMI console(Zephyr+) the chances that it is caused by a cold joint under the upper part of the GPU are only about 60%, 60% and not 50% because the GPU area is in the Zone 1 where it experiences more flexing than the HANA chip in the Zone 2 area.
The HANA chip in HDMI consoles is unlike the ANA chip in previous models soldered to the board with BGA solder balls which are very vulnerable to the flexing and temp differences, this is all pointed out in the Proof of Concept of the Hybrid Fix.
As there is less flexing and lower temps in the HANA chip area the chances that E74, no video, no sound or even no video+audio errors are caused by that chip are only at about 40%.

So it is always worth looking into the HANA chip as well if you have reflowed/reballed the GPU and the console still doesnt work or has been returned after a short time...

And it is never caused by the Southbridge, RAM, CPU, this one is really only related to these two chips(GPU and HANA)....

[gzetski]

Dear Kaiser,
what do you use to keep your beard so evenly trimmed and stylish?

LOL.... thanks for basically saying the same thing I did though - just drives the point home

[james513]

I had this problem, but my picture came back after I let it sit there for a few hours. But there is a white haze(like the contrast is turned up) over everything. Would this be the GPU or the ANA.

[XboxUniversity]

I had this problem, but my picture came back after I let it sit there for a few hours. But there is a white haze(like the contrast is turned up) over everything. Would this be the GPU or the ANA.

They are interconnected, so it could be a bad solder joint under either chip. I have found that by applying pressure in different parts of the motherboard / chips and powering it up, I could actually pin-point exactly where the problem exists.

[james513]

when i try and over heat it the picture gets better, looks normal.

[james513]

I tried to push on the ANA it didn't fix the picture, I also pushed down on the heatsink over the GPU that didnt work either. not sure what to do really. Should I run the hair dryer over the ANA when the console is on?

[haris2887]

fixed a no video to day with a reflow on my 968 reflow station ...

[mnsg2]

So here's my situation...

I x-clamp fixed my 360. It worked great for about ten minutes, then the picture became blocky, and blurry, then just went away. No sounds either. I then turned off the box, and turned it back on. No video, but I can hear the start up sound, and the dashboard menus as i move the sticks.

Also, the center light on the RF module continually flashes... BUT only when there is no video. Ideas?

I have no RROD and feel very dumb. Can you help???

[AznBomb]

I work on Xbox 360 consoles everyday. I see numerous people with the video problem and all I do is reflow the board, GPU and CPU, then complete it with the X clamp fix.

[mnsg2]

I have no idea how to reflow, needless to say what reflow means lol... Any other ideas LOL

Still feeling dumb, even dumber now lol.

[Deary65]

I have no idea how to reflow, needless to say what reflow means lol... Any other ideas LOL

Still feeling dumb, even dumber now lol.

Reflowing is melting the solder so it reconnects then you let it to cool down and solidify.
X-clamp fixes push the solder together so they connect but eventually they will become disconnected again and have to be reflowed.

[stinger101]

My friend had the same problem, he had no video but he had audio i took it off his hands did the xclamp replacement and it booted up fine. my brother has a chronic e74 error because his gpu overheats, i highly suggest you get a falcon version gpu heatsink, they will help alot and help prevent your gpu from overheating and causing e74. if you do get the heatsink install normaly and test leave it go for a lil while(my brother tests xbox via watching a movie on them) shut it down let it cool completely and you should have no problem. if the e74 persists or is intermittent then you should only have to shut the console down and let it cool. btw my xbox has the same problem, the gpu overheats adn it e74s due to not having a falcon heatsink on my gpu.

[EDIT] Also if you have a console that has no video do not press on the ana/hana chip until you are cetain that it is causing the problem(press too hard and you will cause more problems for yourself. Also my console that has the chronic e74 when i had gotten it tested it and tore it apart i did the xclamp replacement booted it up and it e74 still so i looked at the ana/hana chip and there were solder bridges connecting a few legs of the ana chip, i removed those and booted it up and it worked, now i just have to get a falcon heatsink so the gpu wont overheat too much.

[thor999]

Hey guys just wanted to pipe in here: I have had three consoles come in w/ no video (everything else works OK) and have fixed all three w/out incident w/ a reflow of the GPU.