Onkyo TX-NR636 HDMI NO OUTPUT

dolivas27
Junior Member

Posts: 94

Onkyo TX-NR636 HDMI NO OUTPUT Oct 4, 2015 20:27:11 GMT -5

Quote

Post by dolivas27 on Oct 4, 2015 20:27:11 GMT -5

Ok so I am working on another Onkyo TX-NR636 this one has no video output.

I have swapped the HDMI board just to verify that the problems is with the HDMI board and the replacement board works fine as does the receiver.

So here is what I have the HDMI board has a error on the

T1.01/14311A VSP2 HDCPTX (Firmware location)

On this board it reads T?

?

I tried to reflash the unit from the USB and it completed fine but I still have the T?

Firmware error.

I need to now what flash chip on the HDMI board holds the T firmware so I can narrow down the problem on the board.

It looks like the HDMI board contains 7 different chips that hold firmware information.

IC's (Q3002, Q3004, Q7009, Q8040, Q8403, Q8405, Q8701)

So if you can point me to the correct chip location the for the T / VSP2 HDCPTX location it would help.

Thanks

mastertech
Global Moderator

Posts: 3,531

Onkyo TX-NR636 HDMI NO OUTPUT Oct 5, 2015 19:51:54 GMT -5

Quote

Post by mastertech on Oct 5, 2015 19:51:54 GMT -5

Well first we look at what those firmware letters mean.
VSP2 is for video signal processing 2
HDCP, well we mostly know what that means for HDMI and TX is the transmit line.

So that firmware is most likely for the transmitting of the HDCP signal for HDCP communication on the secondary video signal processing line.
I really don't think it is a firmware or firmware chip problem in itself. I think it is a no communication problem because of a blown transmitting chip or lost supply voltage somewhere.
Also, the manual does not indicate which line is VSP2, HDMI output main or sub.

It looks like Q8402 is the transmitting chip for the main HDMI out (pg. 47) and Q8302 is the transmitting chip for the sub HDMI out (pg. 39).

Of course it is also not telling us if it is on an HDMI input line either.

If you connect a source via HDMI but leave both HDMI outputs disconnected, does the receiver recognize the input and does it output sound?

dolivas27
Junior Member

Posts: 94

Onkyo TX-NR636 HDMI NO OUTPUT Oct 5, 2015 22:10:20 GMT -5

Quote

Post by dolivas27 on Oct 5, 2015 22:10:20 GMT -5

Well I think you are 100% Correct about the firmware chip I removed it and read it with my reader and it looks good.

I will test to see if I get sound from just the input being connected.

What voltage do you think I should check for first?

I need to repair another TX-NR636 so I can do further testing on this HDMI board. I replaced the bad HDMI board with another one I had. Should have the other receiver repaired this evening I will need to use that transformer I was working on in another thread.

Thanks

Last Edit: Oct 5, 2015 22:10:47 GMT -5 by dolivas27

dolivas27 Junior Member Posts: 94	Onkyo TX-NR636 HDMI NO OUTPUT Oct 10, 2015 7:27:43 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by dolivas27 on Oct 10, 2015 7:27:43 GMT -5 Ok sorry for the delay I have the HDMI board installed in another receiver and with the source set to CBL/SAT I have no picture but I do have sound.

mastertech Global Moderator Posts: 3,531	Onkyo TX-NR636 HDMI NO OUTPUT Oct 10, 2015 8:37:28 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by mastertech on Oct 10, 2015 8:37:28 GMT -5 Do you also have 1 of the HDMI out's connected to something?
	MT

dolivas27 Junior Member Posts: 94	Onkyo TX-NR636 HDMI NO OUTPUT Oct 10, 2015 20:18:15 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by dolivas27 on Oct 10, 2015 20:18:15 GMT -5 Yes Main out is connect to the TV I have also tried the Sub out and still no picture but I do have Audio.

mastertech Global Moderator Posts: 3,531	Onkyo TX-NR636 HDMI NO OUTPUT Oct 11, 2015 19:11:08 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by mastertech on Oct 11, 2015 19:11:08 GMT -5 You need to test the output on all the regulators on that board. Do you need me to name them for you? Or can you just search them on the schematics?
	MT

dolivas27 Junior Member Posts: 94	Onkyo TX-NR636 HDMI NO OUTPUT Oct 11, 2015 21:42:56 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by dolivas27 on Oct 11, 2015 21:42:56 GMT -5 Ok well that's going to take awhile most of the regulators are on the bottom of the board so not easy to get to.

mastertech Global Moderator Posts: 3,531	Onkyo TX-NR636 HDMI NO OUTPUT Oct 11, 2015 22:07:25 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by mastertech on Oct 11, 2015 22:07:25 GMT -5 As you test them, make sure you make a list of the ic numbers so we can verify if you missed any.
	MT

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Post by dolivas27 on Oct 4, 2015 20:27:11 GMT -5

Post by mastertech on Oct 5, 2015 19:51:54 GMT -5

Post by dolivas27 on Oct 5, 2015 22:10:20 GMT -5

Post by dolivas27 on Oct 10, 2015 7:27:43 GMT -5

Post by mastertech on Oct 10, 2015 8:37:28 GMT -5

Post by dolivas27 on Oct 10, 2015 20:18:15 GMT -5

Post by mastertech on Oct 11, 2015 19:11:08 GMT -5

Post by dolivas27 on Oct 11, 2015 21:42:56 GMT -5

Post by mastertech on Oct 11, 2015 22:07:25 GMT -5

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