LED Display Upgrade suitable for any JD-990. White graphics on Black Background. (Negative) This NEW Negative White on Black LED display has a number of unique design features. Custom Japanese FFSTN (negative) Tri-Axis LCD panel for improved side to side (lateral) and 12o’clock racked view. This White on Black graphic looks great sat in the black 990 front panel. The blue display, listed for sale separately, also looks great. Colour choice will depend on personal preference. Optimised display contrast to match various Roland modules. In order to make the extensive tooling costs worthwhile, it was necessary to design this graphic display to work in other Roland modules which are slightly different in regards to contrast. An average voltage was calculated, the display was then designed to that spec. As a result, the JD can be optimised around menu settings 1-4. This is part of the design and necessary to ensure the display is compatible in other Rolands. Largest possible backlight footprint, keeping LED’s away from the viewing area to avoid unwanted lightspot. The result is a flat, even background / border with minimal imperfections. With this black negative display, the backlight design was very important. If the border was patchy and uneven due to LED lightspot, it would ruin the look of the display. Custom 5000K Pure White LED’s. The LED’s used on this display are pure white 5000 Kelvin types. They were specifically requested. I wanted pure white light to maximise the display contrast. Combined with the backlight design, custom bezel dimensions and the highest quality’FF’ double film compensation / polarizers. The final result is a display that looks nearly like an OLED, nearly! Its as close as it’s possible to get with a Negative Black LCD. Its very difficult to get the black display’right’ A significant number of revisions were required during design to achieve this aim. Marginal gains philosophy was applied to everything, the collective result is, indisputably, the best looking Negative Black LCD available. Fully adjustable backlight dimmer. This feature is absolutely necessary with this black display. Before it ships, the brightness will be set to the level’i’ think is correct for the black FFSTN glass. You can, ofcourse, adjust it further to either brighten (anticlockwise) or dim (clockwise) trick is, not to boost it too much. There is a point, a sweetspot, where the graphics are not too bright and not too dim, the background is as black as possible and it looks amazing. Armed with the backlight dimmer. Its possible to dial in this sweetspot perfectly. It simply needs fine tuning. The dimmer is located top right hand corner, adjustment is possible with a small screwdriver. The display can be connected up, screwed in, then switched on and set up, from your normal, viewing position. Afterwards, the front panel and lid can be reassembled. This special negative black display was designed in parallel with my NEW black Akai display. Both share very similar design characteristics. I used the same tricks on both to maximise the performance. Both have the same Tri-Axis glass produced in Japan, designed to maximise the viewing angles. The blue display in comparison is relatively straightforward to design. For example, It doesn’t matter how bright the backlight is on the blue display, with the black display, it’s critical. A lot of time and effort has went into designing and manufacturing this special display. The pursuit of perfection, means the display is built by 2 different companies. One to produce the special Tri-Axis glass. The other, the chip on board and final assembly. The display will arrive, ready to Plug N Play. NO soldering or modifications are required. Simply, connect the ribbon as before, bolt it in, then switch on and adjust the backlight dimmer. Also available is a White on Blue negative type. Built to the same spec as the black one. Some customers prefer the displays very bright, if that’s your preference, you should choose the White on Blue. The background is a beautiful blue at every brightness setting This display is specifically configured to upgrade your JD-990. Correct for a rack instrument. If you need a black display for your MC-80, XP-60 or XP-80, see my other listings. The displays listed there are 6o’clock view optimised for keyboard / desktop. The displays are NOT the same. Its important to fit the correct type, otherwise the look and functionality of the display will be badly compromised Hi-Res pics shot with my nikon slr can be viewed here uncompressed. There are NO user serviceable parts. The display is Plug N Play! The item “Roland JD-990 Custom (Negative) LED Graphic Display” is in sale since Tuesday, April 30, 2019. This item is in the category “Musical Instruments\Pro Audio Equipment\Synthesisers & Sound Modules”. The seller is “luxmuzik” and is located in Douglas. This item can be shipped worldwide.

• Country/Region of Manufacture: Japan
• MPN: Does Not Apply
• Brand: Roland