Raspberry Pi

Raspberry Pi Forum info on board

Join Raspberry Pi to participate - click to join for free!

Featured Articles

Announcing Pi

Technical Specifications

Raspberry Pi FAQs

Win a Pi

Raspberry Pi Wishlist

Actions

Forum Thread Details

State Suggested Answer
Replies 8 replies
Answers 1 answer
Subscribers 664 subscribers
Views 752 views
Users 0 members are here

Related

info on board

izephire over 8 years ago

I am trying to find info on this board and see how I can hook it up to my raspberry pi 3. it is on a 7in screen that came out of a car entertainment system

Attachments:

0 gadget.iom over 8 years ago

I did a brief search using the references on the board silkscreen (to no avail). The cable header makes me think that you might be able to provide an NTSC/PAL signal onto a couple of those pins and get some video, but without pinout information this task just got a whole lot harder.

I did have slightly more success with the partial part number on the white plastic label (bottom left) but could't get a whole number.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 izephire over 8 years ago in reply to gadget.iom

I did search on google for the board (for a couple of hours) I think it is a dc converter board for an lcd screen but not to sure.

as for the other number if it is thr lq070 number the whole part number is lq070t5crq1
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 Former Member over 8 years ago in reply to izephire

I found a loosely similar board which points to it being an inverter for the LCD's backlight by googling "pwb 12188" here: https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&ved=0ahUKEwjnl4WOjvbPAhWKL8AKHSYtAeIQFg… the url indicates that its a product from a larger range. I wouldn't think there's much use looking deeper into this link though.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 izephire over 8 years ago in reply to Former Member

so do you think that I can hook it up to my raspberry pi or should I just use the screen
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 Former Member over 8 years ago

Without knowing what its power requirements definitely are then its hard to say. Probably not is the answer, you could try powering the backlight inverter from another source
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 izephire over 8 years ago

I have found a data sheet for the screen but cant see hoe to post it. but I think the board on back of the screen is so it can work wit 12 to 14v car electrical systems
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 Former Member over 8 years ago in reply to izephire

none LED backlights can need >1000V to start up, thats what the inverters do.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Reject Answer

Cancel
0 shabaz over 8 years ago

Looks like you have two threads regarding the same topic
how can i hook this lcd screen up to a raspberry pi?
However you've placed the LCD datasheet on the other thread, whereas it would have helped people who were responding to you on this thread.
It just makes it difficult for people to help when multiple threads are created for the same topic.
With the combined information from that thread and this one, it is clear that the display has a composite input, and the adapter board on the rear is
responsible for providing the supply and backlight voltage. You could follow the traces to figure out the pinout based on the datasheet. Often with these
car screens yellow is the composite signal, and red and black are the supply, but you'll need to decipher the rest or perhaps look at the connectors at
the ends of the unit from which you removed the screen.
Cancel
Vote Up +1 Vote Down

Sign in to reply

Verify Answer

Cancel