I have a display from Panasonic car stereo (Toyota Corolla), but can't determine how to work it. It's called Optrex F-51684, and there is no datasheet for that LCD. Is it possible to find how to work with it without datasheet? This is screenshot of the connector pins from main board: connector

So it has a serial interface, i can select a chip here (CS1 and CS2), but also there is an unknown pin LCD-DET.

I thought it has S1D15605 (like nearest Optrex LCD-s) controller but pins seem different. Also there is chip on the module, marked as EF766102 B01 R ,without any information about it on the internet. Same time it has a name IC2 so it should be second chip, but there is no sign of IC1. Can it be hidden somehow?

  • \$\begingroup\$ It's possibly a reset pin. \$\endgroup\$ – Andy aka Jan 27 '17 at 10:04
  • \$\begingroup\$ There is also LCD-RST on the other side, two reset pins? \$\endgroup\$ – Ildus Jan 27 '17 at 10:05
  • \$\begingroup\$ I make it a rule never to design with anything that doesn't have a recognizable data sheet so it's anyone's guess. \$\endgroup\$ – Andy aka Jan 27 '17 at 10:19
  • \$\begingroup\$ Look at the chips on the LCD module, see if you can identify the LCD controller chip. It may be possible to get a datasheet for that chip, in which case you are 90% of the way there. \$\endgroup\$ – Steve G Jan 27 '17 at 10:43
  • \$\begingroup\$ I've added additional information to the post about chips. \$\endgroup\$ – Ildus Jan 27 '17 at 11:05

Is it possible to find how to work with it without datasheet?

Absolutely possible, just like finding a needle in a haystack is possible.


I have the datasheet but it says that the controller chip is S1D15605. I downloaded the datasheet 16 years ago. How can I upload it?

  • 1
    \$\begingroup\$ Welcome to SE/EE! You cannot. This is a Q&A site, not a forum or something else. Please take the tour to learn how this site works. Anyway, the question was posted more than 4 years ago. \$\endgroup\$ – the busybee Jul 22 at 6:54
  • \$\begingroup\$ If you can post it on web you can post a link here. If not you could send it to me and I can do so. If doing that please also send link to this question. My email address is in my profile \$\endgroup\$ – Russell McMahon Jul 22 at 7:08

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.