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I'm trying to salvage a Samsung LTN154AT07 LCD from a laptop. I've ordered an MT6820-B rev.3 universal LVDS driver and a 5A step-down module (XL4005), and I think I have a decent grasp of how everything goes together (there's already an inverter on my LCD). I'm following this tutorial: http://sites.google.com/site/lcd4hobby/lcd-tft-as-pc-monitor

The problem that I am having is with the 30-pin cable. I found the pin diagram for the monitor, and also the pinout on the MT6820-B, but the abbreviations for the outputs/inputs are completely different on each. I was hoping that perhaps someone might be able to help match them up so I don't fry the monitor. Once I know what goes where, I can rewire the 30 pin cable. Even if someone can help match up some of the wires it would be a great help.

The image below shows the LTN154AT07 LCD pin assignment on the left, and the MT6820-B controller on the right.

Here is a link to the LTN154AT07 monitor's booklet in case there is some info missing from my image: http://www.beyondinfinite.com/lcd/Library/Samsung/LTN154AT07.pdf

*edit: here it is in question form:

I am trying to connect the controller on the right to the monitor on the left with a 30-pin LVDS cable. Can someone please help me decipher which pins from the monitor go to which pins on the controller card?

Thanks in advance for any assistance!

Cheers,

-Gabriel

LTN154AT07 on left, MT6820-B on right

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closed as off-topic by placeholder, uint128_t, Bence Kaulics, Daniel Grillo, Voltage Spike Jun 9 '16 at 16:16

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions on the use of electronic devices are off-topic as this site is intended specifically for questions on electronics design." – placeholder, uint128_t, Bence Kaulics, Daniel Grillo
If this question can be reworded to fit the rules in the help center, please edit the question.

  • \$\begingroup\$ Welcome to EE.SE This is a Q&A style site, it appears your post does not contain a question or questions. Please edit you question and make it easier to answer by posting a question. Please visit the help center electronics.stackexchange.com/help/how-to-ask for reference on posting questions. Thanks \$\endgroup\$ – Voltage Spike Jun 6 '16 at 22:15
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    \$\begingroup\$ I don't understand how the above is not considered a question? "how do I configure the wires in the LVDS 30 pin cable from the monitor on the left to the controller on the right" in a nutshell. \$\endgroup\$ – Tesseract Jun 7 '16 at 12:12
  • \$\begingroup\$ @Tesseract Still not a single question mark in your "question". \$\endgroup\$ – winny Jun 7 '16 at 12:51
  • \$\begingroup\$ First, make sure the 3.3 V/5 V selector is set to the 3.3 V position. \$\endgroup\$ – Andrew Morton Jun 7 '16 at 14:19
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First of all set 3.3V supply voltage with jumper, as @Andrew Morton wrote in comments. Connect signals in the following manner:

  1. All pins marked VSS on LCD (1,10,13,16 and 19) to GND
  2. LCD supply VDD (pins 2 and 3) to VCC
  3. First differential pair: RxIN0- (pin 8) to O0- and RxIN0+ (pin 9) to O0+
  4. Second differential pair: RxIN1- (pin 11) to O1- and RxIN1+ (pin 12) to O1+
  5. Third differential pair: RxIN2- (pin 14) to O2- and RxIN2+ (pin 15) to O2+
  6. Clock signal differential pair: RxCLK- (pin 17) to OC- and RxCLK+ (pin 18) to OC+
  7. Pins 4,5,6 and 7 are used for EPROM identification chip on LCD, but Your driver board doesn't use that feature, leave these lines unconnected, do not connect to them to GND, nor to VCC!
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  • \$\begingroup\$ thank you! so like this? imgur.com/4Z0Bo2a \$\endgroup\$ – Tesseract Jun 8 '16 at 4:55
  • \$\begingroup\$ @Tesseract Exactly, but also connect pin number 1 from LCD to GND! If it works, please don't forget about accepting and upvote the answer. \$\endgroup\$ – Jakub Rakus Jun 8 '16 at 20:17
  • \$\begingroup\$ Connect pin #1 from LCD to the GND pin on the second row (row 2, GND/VCC)? Or down to the ones that are 3 rows from the bottom? \$\endgroup\$ – Tesseract Jun 9 '16 at 18:43
  • \$\begingroup\$ @Tesseract Any GND pin should work, but I think it will be easier to connect #1 from LCD to GND pin in row 2 (pin number 4 in this case). \$\endgroup\$ – Jakub Rakus Jun 9 '16 at 21:21

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