2006 Acura TL OEM Navi Touchscreen Integration - Page 4

lebshiff21 · 04-26-2008, 09:57 AM

Can you post the pinouts you used?

gnhuntin · 04-26-2008, 07:50 PM

Quote: Originally Posted by lebshiff21

Can you post the pinouts you used?

I will post it monday, its at work. I will also post a link to a manual for the Scan Do 800. I searched forever before I found it.

lebshiff21 · 04-26-2008, 09:52 PM

Nice - thanks

dupa2 · 04-26-2008, 10:42 PM

Looks great!
I even looked through your thread in acurazine.
One comment though, and it really applies to many solutions posted on this site; many of solutions base on relays to switch a variety of signals. Like in your solution, you switch low-level signals with 5A relay, but I think completely unnecessary. There's great product that should do better in lieu of the switch. Look up CD4066, it's a quad gate, and with 2 small chips you get low-power, and hi-efficiency switch, no moving parts, so rather great solution for automobile application, and pros overweight cons in all aspects. For sure it will work great switching analog signals. The relay introduces some resistance through the contacts, and depending on type, may fail due to shocks it has to withstand in the car

If you need help with that, PM me, and I can give you quick schematic how to use it.

gnhuntin · 04-28-2008, 09:30 AM

Quote: Originally Posted by gnhuntin

I will post it monday, its at work. I will also post a link to a manual for the Scan Do 800. I searched forever before I found it.

Here is a link to the manual for a 1270 (Scan Do 800) it is for a Black Box AC095A but they are one in the same.
http://www.blackbox.co.uk/technical/...A%20Manual.pdf

The pinouts for the RGB composite 9 pin connector on the rear of the scan do 800 are:

1. Ground
3. Red
4. Green
5. Blue
8. Composite Sync

lebshiff21 · 04-28-2008, 10:49 AM

Quote: Originally Posted by gnhuntin

Here is a link to the manual for a 1270 (Scan Do 800) it is for a Black Box AC095A but they are one in the same.
http://www.blackbox.co.uk/technical/...A%20Manual.pdf

The pinouts for the RGB composite 9 pin connector on the rear of the scan do 800 are:

1. Ground
3. Red
4. Green
5. Blue
8. Composite Sync

Awesome - thanks so much. So did you use a DB15 connector into the Scan Do? Why couldn't I just use the standard VGA 15 pin out of the laptop into the VGA port on the Scan Do?

gnhuntin · 04-28-2008, 01:14 PM

Quote: Originally Posted by lebshiff21

Awesome - thanks so much. So did you use a DB15 connector into the Scan Do? Why couldn't I just use the standard VGA 15 pin out of the laptop into the VGA port on the Scan Do?

The VGA input from a regular pc (it is opposite for a mac) on the scan do is the HD 15 (2 rows - 15 pins) the standard DB 15 (3 rows - 15 pins) is for pass through output to a Standard VGA Display ie (say you are doing a presentation using your keyboard and mouse sitting at a desk you could use your regular monitor and everyone else would be watching a big screen tv). If you also need this cable. PM me and I will send you a picture with the pinouts or you can order one for $31. It is CSI part#101257 cable. You can purchase it through Graybar or your local Anixter office (www.anixter.com).

lebshiff21 · 04-29-2008, 10:07 PM

So I got it all hooked up, but something is wrong.

When I tap into the RGBs wires for the LCD, I get red blue and green, but the white seems wrong. I've tried playing w/ the brightness, gamma, and contrast, but it just seems like it's not there.

gnhuntin · 04-30-2008, 09:51 AM

Are you usin the scan do 800? If so hit the test button and look at the color bars and compare it to your laptop. It could be the blue and green are reversed.

lebshiff21 · 04-30-2008, 01:50 PM

I just tried it - When I hit the test button once - I get nothing, just a blue screen. When I hit it a second time, I get a green screen w/ a black bar on the left.

edit: just checked that manual you linked:

Quote:

4.2 Using the Front-Panel Controls
TEST BUTTON: This button will force your Converter to generate one of two
test signals on its COMPOSITE and S-VIDEO outputs. (These test signals are
not available on the RGBS output.) When you press this button once, the
indicator LED on the button will light up and the Converter will output a
“color bar” signal. When you press this button a second time, its LED will stay
lit, but the Converter will now output a “grayscale ramp.” When you press this
button a third time, the LED will go off and the Converter will resume
outputting images received from your computer.

gnhuntin · 04-30-2008, 02:48 PM

I see. Can you power the scan do inside and use the rca composite connection to a television and see if the color bars look ok on the tv. Split the problem to see if it is the scan do, wiring to Nav Screen or something else?

lebshiff21 · 04-30-2008, 03:50 PM

If I use the composite it works OK, sort of blurry, but colors are correct. So it's not the Scan Do. Must be the cable I made between the Scan Do RGBs out to the screen wires in my trunk for the LCD. I'll play with it tonight and see if I've just got something backwards. Thanks for your help.

So in the trunk there's a serial cable spliced into the RGBs out from the back of the nav unit. There's only 4 wires (RBGs obv.) I verified they're correct via an Acura wiring diagram. My question is - where should the ground out of the Scan Do go (pin 1)?

gnhuntin · 04-30-2008, 04:08 PM

I'm not sure for yours, but in my car (mazda) I had a ground. Try checking the wires with a DVM and see if one of the wires reads 0 ohm to the chasis and try that.