Pioneer VSX-324 suddenly the HDMI stops working

[buchman]

Hi all,

Recently, when I watch a movie, after a few minutes suddenly the red HDMI light on front of the receiver goes off and there is no picture and no sound but, the receiver itself stays on!
Then, when I turn it off for a few seconds and turn it back on, it keeps working for another few minutes and then the HDMI turns off once again.
Tried to do the factory reset and it didn't help.

What could be the problem? If it's one of the components inside then I can replace it if someone can pinpoint to the faulty component.

Thanks in advance.

[buchman]

Re: Pioneer VSX-324 suddenly the HDMI stops working

I have noticed that when the lid is open, it doesn't happen.
Any clues?

[Francesc V.]

Re: Pioneer VSX-324 suddenly the HDMI stops working

Well, it's heat related :-)
Have you tried to clean it? maybe it's too dirty.

In this case I would take an infrared camera to see where this heat is coming from.

[CapLeaker]

Re: Pioneer VSX-324 suddenly the HDMI stops working

Could be something needs to be reflowed or needs additional cooling.

[buchman]

Re: Pioneer VSX-324 suddenly the HDMI stops working

I agree with you guys, definitely heat related, the question is how to discover the problem.
I don't have an infrared camera, it's very expensive.
Yes it's clean inside.

[Francesc V.]

Re: Pioneer VSX-324 suddenly the HDMI stops working

I agree with you guys, definitely heat related, the question is how to discover the problem.
I don't have an infrared camera, it's very expensive.
Yes it's clean inside.

You could also use isopropanol (isopropilic alcohol), that does not contain any water in it. Put some on the hdmi pcb and look for evaporation. That would be the heat point.

[CapLeaker]

Re: Pioneer VSX-324 suddenly the HDMI stops working

Focus on the board attached below.
First I would take the board out clean all connections and put it back in. Also verify if the HDMI problem is just one or all ports. Get yourself a can of air or dust spray. If you turn the can upside down you can freeze IC's or other components with it. Same with a hair dryer or similar, you can heat a part of the board and hopefully can find the problem that way.

[buchman]

Re: Pioneer VSX-324 suddenly the HDMI stops working

The HDMI problem is for all ports.
What do you mean by saying CLEAN the board? From dust?

[CapLeaker]

Re: Pioneer VSX-324 suddenly the HDMI stops working

Don’t be shy and clean the connectors and plugs that come and go to this board with some electrical cleaner. The heat or freeze that IC and see what happens.

[buchman]

Re: Pioneer VSX-324 suddenly the HDMI stops working

Don't be shy and clean the connectors and plugs that come and go to this board with some electrical cleaner. The heat or freeze that IC and see what happens.

The problem is that it's not happening with the lid open so, if The lid is closed then it shutoff but if then I will open the lid, the receiver will work normally and thus I can't pinpoint the problem

[budwich]

Re: Pioneer VSX-324 suddenly the HDMI stops working

did you try what was posted in post #7.... the hint about the hairdrier is your "huckleberry".

[CapLeaker]

Re: Pioneer VSX-324 suddenly the HDMI stops working

Umm… yes… you want the unit open for this, so you can see what you freezing or heating an IC and pinpoint the problem. You know the unit clunks out if it gets too hot. With the case open the unit will clunk out too if you add heat from the hair dryer. To speed up the cooling process use the freeze spray trick with a can of air upside down. Works every time.