E13m3n7
Posts: 6
Joined: Fri Oct 05, 2018 7:25 pm

Honda Civic 2016 touch screen panel

Fri Oct 05, 2018 7:47 pm

Hi guys! I was able to salvage some Lcd 7inch touchscreen coming from honda civic. Im looking to converti them to Hdmi so I can use them for my SBCs. Here some picture from the circuit board in the back of the screen and from connector pinout from honda. It seem to have a converter board, lcd, digitizer and buttons. The audio unit (which I dont have) is base on Android OS. Any suggestion? ***Notice the little 6pin connector in upper left, that isnt connect to anything, im guessing its a kind of testing port or something... Ask if you need close picture or info
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aBUGSworstnightmare
Posts: 1071
Joined: Tue Jun 30, 2015 1:35 pm

Re: Honda Civic 2016 touch screen panel

Sun Oct 07, 2018 12:41 pm

E13m3n7 wrote: Hi guys! I was able to salvage some Lcd 7inch touchscreen coming from honda civic. Im looking to converti them to Hdmi so I can use them for my SBCs. Here some picture from the circuit board in the back of the screen and from connector pinout from honda. It seem to have a converter board, lcd, digitizer and buttons. The audio unit (which I dont have) is base on Android OS. Any suggestion? ***Notice the little 6pin connector in upper left, that isnt connect to anything, im guessing its a kind of testing port or something... Ask if you need close picture or info
Sorry, but this picture is useless! Do you have a spec (data sheet) or model number at least?

If you're lucky the screen has LVDS (or mini-LVDS) interface. But without access to the spec you can simply put it back to the rest of the car ...

E13m3n7
Posts: 6
Joined: Fri Oct 05, 2018 7:25 pm

Re: Honda Civic 2016 touch screen panel

Sun Oct 07, 2018 10:00 pm

Oh very sorry, first post, bad upload ... here we go ! ,its what I get so far. . didnt find daata sheet .. but I have the audio Unit diagram
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Last edited by E13m3n7 on Sun Oct 07, 2018 10:05 pm, edited 1 time in total.

E13m3n7
Posts: 6
Joined: Fri Oct 05, 2018 7:25 pm

Re: Honda Civic 2016 touch screen panel

Sun Oct 07, 2018 10:01 pm

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E13m3n7
Posts: 6
Joined: Fri Oct 05, 2018 7:25 pm

Re: Honda Civic 2016 touch screen panel

Sun Oct 07, 2018 10:07 pm

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E13m3n7
Posts: 6
Joined: Fri Oct 05, 2018 7:25 pm

Re: Honda Civic 2016 touch screen panel

Mon Oct 08, 2018 2:56 am

[attachment]Copy of DSC_0256_crop_309x309.JPG[/attachment]I think I just found that the LVDS+ and LVDS- are direct input in an eDP to LVDS bridge chip similar to PTN3460 [attachment]Capture.JPG[/attachment][attachment]sketch-1538965968376.jpg[/attachment]
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aBUGSworstnightmare
Posts: 1071
Joined: Tue Jun 30, 2015 1:35 pm

Re: Honda Civic 2016 touch screen panel

Mon Oct 08, 2018 4:38 am

What do you wantto use? The lcd display only or the whole thing(incl. PCAP etc).

For lcd only you will need to have the data sheet of la070wv7 - that's the displays part no (sl02 version would be best).
Details of your screen: http://www.panelook.com/LA070WV7-SL02_L ... 33465.html

For 'all': good luck in reverse engineering this unit.you're - most likely - on your own as nobody will be able to support.
Just an example with - what you think is an LVDS signal from an eDP bridge: this is your a single LVDS pair (LVDS= Low Voltage Differential Signaling), so question: what's the protocol beeing use, what's the purpose of this channel, etc.

E13m3n7
Posts: 6
Joined: Fri Oct 05, 2018 7:25 pm

Re: Honda Civic 2016 touch screen panel

Mon Oct 08, 2018 6:54 am

Tbh, I would really like having it working in one piece but I know it could be come complicated but getting some parts working like screen or touch button would be great too... I just want to learn! Ive got a few of these before they trash them after warranty... So!!... The head unit that come with this screen is a android phone converted to à car 😂! Some information from b-can and probably lin-can are coming in the unit for controlling HVAC, some camera and other settings, but I dont think they would have used these protocol to communicate between a "media" unit and display/control unit... If I could send LVDS+- signal through the first chip that "open" the unit I could be able to control something. The display is LG and audio unit is mitsubishi by the way if that can help :)

aBUGSworstnightmare
Posts: 1071
Joined: Tue Jun 30, 2015 1:35 pm

Re: Honda Civic 2016 touch screen panel

Mon Oct 08, 2018 7:24 am

E13m3n7 wrote:I just want to learn!
Well, then first lesson for you is to take one step after the other!
Connecting/running some 'unknown' display wtih the PI can be challanging enough. Having a bunch of other 'black box electronics' which needs to be reverse-engineered first, and than - if possible - put into good use with the RPi requires some dedicated skills (in HW engineering as well as SW).

As said, display is a LVDS module, but can have other challanges for you as well (VCOM voltage seems to be generated off-module). Start small, get the display running first, then try to use other components.

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Imperf3kt
Posts: 1371
Joined: Tue Jun 20, 2017 12:16 am
Location: Australia

Re: Honda Civic 2016 touch screen panel

Mon Oct 08, 2018 7:48 am

E13m3n7 wrote:
Mon Oct 08, 2018 6:54 am
The head unit that come with this screen is a android phone converted to à car 😂!
While that probably seems funny, did you know the Raspberry Pi is pretty much the same thing. It uses an outdated Android SOC.
Stop plugging your fan directly into the GPIO 5v
https://www.electronics-tutorials.ws/power/transient-suppression.html

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