RNP 6 front display interface?

This should help: https://community.netgear.com/t5/ReadyNAS-Storage-Apps-Current/Writing-to-LCD-on-Ultra-6/td-p/890703

I appologise for leaving this stale for so long

after some digging I have found that between RAIDiator firmwares and the readynasos firmwares they seem to have moved the lcd device files somewhere or just interfacing to it through a serial port instead or something?

the link from StephenB seems to be for the RAIDiator versions. when i run the 

echo E > /dev/ttyS1

command or similar commands the console just hangs

at the current time the lcd on my unit seems to not be working not sure

but I thought I would post an update on my findings

found this german site that shows how to interface through "rnutil" (kina handy)

https://lug-vs.org/lugvswiki/index.php/ReadyNAS

not exact model but same general os version

the only other thing I have found is in "/sys/class/graphics" where there are some files that may be of intrest

also there is an emty "/sys/class/lcd" directory

sadly I cant check if any of these work yet, but when I can I will post an update (if I remember)

can confirm that my lcd controller board is DEAD the micro gets abnormally hot when the board is plugged in

im considering using a similar display board or making one

I found this site

http://git.natisbad.org/NAS5/index.html

the site mentions that a parralell lcd display similar to this

https://www.winstar.com.tw/products/character-lcd-display-module/lcd-display-16x2.html

netger probererably used a custom version though

upon following the traces on my lcd module two of the connections connect straight to a ground plane and short together

so there are 8 connections 

there is an led and ir sensor also on the board which would require more pins and also a 4 pin connector that isnt connected to the mainboard 3 of those pins are connected to traces

the minimum amount of pins required to make a parralell lcd function is 8 (which is in 4 bit mode)

I have one of these display modules and I am going to try to find the pinout for the connector

this is the pin layout of the connectors:

2    4   n/a  8    10  n/a    14    16

1    3    5    7    9    n/a    13    n/a

image attached with better pin diagram

below are voltages from the cable from the mainboard

WARNING these connections may be flipped im not sure

13.85 V between GND pin:8 VCC pin10 the pins also make continuity

using ground probe on pin 8 this is what voltage reading I got from the other pins

10.68 V pin 6 (the one that isnt populated)

13.82 V pin 4

10.30 V pin 2

15.57 V pin 9

22.73 V pin 7

00.00 V pin 5 this is when i got real suspicious of the connector being flipped

10.48 V pin 3

10.48 V pin 1

diddent check continuity between other pins

I flipped the cable connection from the mainboard and the display still wont work

the strange thing about this is that the display was working fine a week ago when I last checked

paranormal activity?

also im not sure if im being dumb but im pretty sure that the display doesent take sutch high voltages as measured

mainboard issue?

also attached is a partial reconstruction of the board

What I think the pins are

1. maybe vcc?
2. Unsure connected through smaller smd
3. Unknown
4. Unsure connected vcc smd
5. Unknown
6. Not populated
7. Unknown
8. most likely GND
9. Unknown
10. gnd loop connection or something?
11. Not populated
12. Not populated
13. Unknown
14. Unknown
15. Not connected to anything
16. Unknown

havent looked into it yet but this looks to be similar to the board from the earlier link

https://www.pololu.com/product/772

but the voltages would still be way off

maybe I have mainboard issue

if anyone else could check the voltages to the board it would be mutch apreciated

thats all I've got so far