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Author: jeko

HDMI DOESN'T WORK

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Post time 2015-11-16 06:19:55 | Show all posts
fritz replied at 2015-11-15 09:14
@jacer don't make this guy mad!

Because I changed setting on these which they became me proposed on this forum.
All proposed of setting do not work.



First i try use only lg2240 and cable HDMI-DVI .   I used own settings . Then i received from artefacts screen.

I later asked about men's help on this forum .
I do not change anything in files script.bin.  I use files put on this forum exclusively .

Learn about resolutions.
http://www.howtogeek.com/132486/ ... en-1080p-and-1080i/

LG TV have resolution 1920x1080i  equivalent real resolution 1366x768p (?) without interleave
I will taste to modify  to resolution of TV the script.bin   .  I did not try this yet.

Next problem this temperature board.   
Diode d3 is VERY HOT !!See on electric scheme.

This  is very important diode.
Why does diode D3 warm strongly ??  
Because very large balance currents overflow !
You know what this it marks ?
Constructional bug !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
you know for what diode is d3 ?
You know on what bug depends ??

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Post time 2015-11-17 16:06:10 | Show all posts
Edited by fritz at 2015-11-17 09:12

My D3 goes not hot!
maybe you have a short somewhere.
are you shure your HDMI-cable is ok?
test all settings with your TV LG42LN575S via good HDMI - HDMI cable.
Make sure it is fully inserted and choose the right HDMI input port on your TV.
Do this "test" with both linux on sd and the android on the emmc.
I hope you have not received one of this @jeko boards, look at the picture posted by @jeko (first post)
Good luck
Boards:
orangepi plus, olinuxino A20, cubieboard A10, mele A2000 .....

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Post time 2015-11-19 02:12:14 | Show all posts
Edited by marekwolek at 2015-11-19 00:36
fritz replied at 2015-11-17 09:06
My D3 goes not hot!
maybe you have a short somewhere.
are you shure your HDMI-cable is ok?


HDMI IS DEAD !
Problem :
HDMI IS NOT PROTECT ESD ! This is the just cause of  damage the HDMI.
HDMI is demage !!!
The cause of damage the Orange the PI  is the defective power supply .  Power supply does not be separate . ATTENTION !!!!  WARNING !!!!!  5V not separate 230V !!!!!!!!  
Am sure on 100%
Voltage Power suplay to GND ( PE )  == 85V (ac) !!! VDC=0V.
Differential Voltage shield HDMI to board GND  == 10V  ( AC )  VDC=0V
Power supply  to orange PI  must by have 5V  DC and  3000mA
My power supply  have  5 V  DC and 85V AC  ( gnd board to gnd protective conductor PE) !!! Monitor TV have connect to protective conductor. SHIELD  HDMI in TV or Monitor has connect to protective conductor. HDMI signal wire in monitor also connect to protective conductor  through ESD protection component.

To measure voltage DC and AC .
If it HDMI does not work, measure voltage between orange pi(power supply)  and Monitor (cable shield ) .  If diferential voltage upper in 0,6V   YOU BURN PORT IN  ALLWINNER H3 .

My Orange PI plus is damaged.

I thank for help

ps .I buy Orange Pi plus with Power Supply.

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 Author| Post time 2015-11-26 22:33:46 | Show all posts
Edited by jeko at 2015-11-26 22:37
jacer replied at 2015-11-11 21:40
Is the builtin Android working with HDMI?If no, you should contact the seller.

I tried with the stock Android that comes with the board and with the android from the official site, botting from SD card and it doesn't work. I always get the same error, ddc timeout error.... I contacted the seller but didn't get any usefull answers. It doesn't work with Lubuntu either.
The AV connector is working but the quality is not so good.

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Post time 2015-11-27 02:47:51 | Show all posts
Without ESD elements (ESD15, ESD16) your HDMI lines are open. Is there any shorts??

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Post time 2015-11-27 05:38:43 | Show all posts
Edited by marekwolek at 2015-11-28 20:58
DEAD replied at 2015-11-26 19:47
Without ESD elements (ESD15, ESD16) your HDMI lines are open. Is there any shorts??

You have to understand problem ESD.   See on my pictures  

I recommend EEBLOG
DAVE JONES explains  problem .
https://www.youtube.com/watch?v=xaELqAo4kkQ  

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Post time 2015-11-27 17:29:51 | Show all posts
On my Orange PI PC every esd part is missing (mostly for HDMI USB) and everything works well.

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Post time 2015-11-27 17:41:46 | Show all posts
Look on the schema. Without ESD15 and ESD16 parts your HDMI lines are interrupted. HDMi signal must go thru esd parts.

Switch your multimeter to current (mA) range and we will see is there a real problem.

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Post time 2015-11-28 01:18:03 | Show all posts
Well, 0524P pdf says there is NO internal connection!
http://www.semtech.com/images/datasheet/rclamp0522p_0524p.pdf
Check with the multimeter.

e.g. This is my cheap H3-OTT Box without ESD chips:

For now it works, but it will be better if there would be some protection.
My OPI plus has two 0524P ESD protection arrays.



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Boards:
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Post time 2015-11-29 04:39:21 | Show all posts
Edited by marekwolek at 2015-11-28 21:43
DEAD replied at 2015-11-27 10:41
Look on the schema. Without ESD15 and ESD16 parts your HDMI lines are interrupted. HDMi signal must  ...

Typical symptoms of damage: http://www.orangepi.org/orangepi ... aarzqoohayqmyqa.jpg  
HDMI lines are NOT interrupted.
Damage proceeds !!!!
Monitor is black now ! there are no artefacts even.

HDMI be damaged by ESD !!!!!!!!!!!!!!!!!
How many you want proofs yet ?




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