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Post by u2nmg93 on Oct 23, 2017 21:31:21 GMT -5
R8014, R8015 and R8035 are reading correctly. There wasn't a short between any of the pins and there was good ground contact on the appropriate pins.
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Post by mastertech on Oct 24, 2017 11:58:12 GMT -5
Test DC voltage across the following caps. Fill in the blanks.
C8957-_____
C8947-_____
C8937-_____
C8980-_____
C8982-_____
C8717-_____
C8719-_____
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Post by u2nmg93 on Oct 25, 2017 14:38:17 GMT -5
C8957-__3.3___
C8947-__1.8___
C8937-___1__
C8980-__3.3___
C8982-__1.8___
C8717-__1.1___
C8719-_1.1____
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Post by mastertech on Oct 25, 2017 16:15:10 GMT -5
Have you tried doing a master reset? And clear the NG section.
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Post by u2nmg93 on Oct 25, 2017 20:29:06 GMT -5
Never got a NG error, all the channels work. I tried the master reset as well as a forced firmware update (Page 10). It updated but still no video out.
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Post by mastertech on Oct 26, 2017 21:38:53 GMT -5
Is there any DC voltage on pin 19 of the HDMI out connector?
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Post by u2nmg93 on Oct 27, 2017 8:45:24 GMT -5
Reads 0v on pin 19 and 14 ohms to ground.
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Post by mastertech on Oct 27, 2017 9:30:54 GMT -5
How about on 1 of the HDMI inputs. And see if it changes when you insert a cable on both in and out.
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Post by u2nmg93 on Oct 27, 2017 10:32:07 GMT -5
On the input it reads 4.5v with a cable connected and .055v when pulled out. The output reads .055v when the cable is connected and .001v when pulled out.
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Post by mastertech on Oct 27, 2017 11:39:06 GMT -5
Was the other end of the HDMI cable connected to anything or was it open? If it was connected to something then try the test again with it open on the other end for both tests.
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Post by u2nmg93 on Oct 27, 2017 12:27:20 GMT -5
With the cables open on the other end the input reads .055v connected or disconnected and the output reads 0v whether cable is in or not.
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Post by mastertech on Oct 27, 2017 13:48:46 GMT -5
Find R8000 and do ohm test. Should be 0 ohm.
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Post by u2nmg93 on Oct 27, 2017 14:41:03 GMT -5
It reads 0 ohm.
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Post by mastertech on Oct 27, 2017 15:10:23 GMT -5
Locate Q8704 and Q8705 and get me the voltages on all 6 legs. Try testing with HDMI out connected to display and not connected to display.
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Post by mastertech on Oct 27, 2017 18:49:57 GMT -5
I was curious myself of what the HDMI out connector voltages should be so I did some testing on a working BLURAY player HDMI out connector. With the bluray connected to a tv and video working I had 5.1v at pin 19. I had 0 volts when then disconnected. So the question is, does that 5.1v come from the tv or the bluray HDMI out?
Did you try more then 1 tv to test for video out? I am guessing you have used this tv before for testing?
I then decided to see what the HDMI out pin voltages should be when not connected and bluray powered on. Here are the results.
Pin:
1- .43
2- 0
3- .43
4- .43
5- 0
6- .43
7- .43
8- 0
9- .43
10- .43
11- 0
12- .43
13- 3.9
14- .01
15- 5.1
16- 5.1
17- 0
18- 5.1
19- 0
If you have another working AVR you can confirm these readings if you like. Or anyone else here if they would like to test and see for future reference.
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