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Updates: Many topics are permanent, so may be updated to any material, for add or correct info.
Get more info: Since the beginning this site tryes to be a compilation center of the best sources for the JD800. Not a copy.
So please, visit the sites at the Links section for lots of much more very good information.

quarta-feira, 11 de maio de 2016

JD-800 and JD-990 DAC Calibration

This is my JD-800. The DAC board is at left.

JD-800 and JD-990 DAC Calibration

Calibration for the JDs Digital to Analog Converters (DAC).

Just to remember, the DAC is that circuit where the digital signal is converted to analog. This is a very important part of the JD, because the quality of the result it does.

From Analog.com:
In principle, you give a digital input to a DAC and it provides an accurate output voltage. In reality, the accuracy of the output voltage is subject to gain and offset errors from the DAC and other components in the signal chain. The system designer must compensate for these errors in order to get an accurate output voltage. This can be implemented with external components and post-manufacture trimming. Digital calibration modifies the input sent to the DAC such that the gain and offset errors are taken into account thus removing the need for external components and trimming.


Thanks to Don Solaris, a JD-Master for posting this at his site. Click the links to be redirected.









If you already does not have the JD Service Manual get it here: JD Manuals.


Note: Please, if the links does not work, notify me at comments to update it. 


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quarta-feira, 15 de abril de 2015

Using the JD-800 as a Programmer for the JD-990



What a shame! I found I already had posted something so here.
Please people, I'm really short on time, ask me to see where I saw more material like this.


The JD-800 can control most of JD-990 parameters. 

This comes from the Sweetwater.com Using the JD-800 as a Programmer for the JD-990


The JD-800 sliders can be set to send MIDI messages that can be recorded into
your sequencer.
When adjusting a selected parameter such as cutoff, resonance, panning, etc., the JD-800 transmits a series of system exclusive messages.

Use the following procedure to enable the Transmit Edit function:

On the JD-800:
  1. Press MIDI.
  2. Use the CURSOR UP/DOWN buttons to select “TX Edit Data.”
  3. Press the INC (increment) button to turn this parameter ON.

On the JD-990:
  1. Press SYSTEM SETUP so it is lit.
  2. CURSOR to “RX Exclusive” and use the VALUE dial to select ON-2.
  3. Press SYSTEM SETUP to return to the previous screen.

NOTE: You will need to enable this transmit function each time you turn the JD-800 on.

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domingo, 23 de novembro de 2014

The Roland JD-800 Buyer’s Guide for Dummies

Another GREAT contribution from MidnightHabit from Texas, USA:


Important note: the author's guide have done updates to this material, so please, verify the last update date as this changed the update link.


This is The Roland JD-800 Buyer’s Guide for Dummies

It's a nice work where he compiled the needed information to buy and found additional resources for the JD-800.

Also, very usefull updated information about some maintenance sometimes needed and this is good to be aware when you buy your own classic vintage JD-800.



Click at the link to view or download it:  





Download link changed: Last update in 24/april/2015

Thanks!


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sexta-feira, 21 de novembro de 2014

Using the Four Palletes in Real Time

A new great video from Marko Ettlich of RetroSound.




A note about: starting at 0:09 we can see the real time use of the four pallete sliders.
Each patch can have up to four individual tones.
This is a resource many new synths like to show at their demos but this often go unforgotten on the JD-800.
So it is possible to create a path with four different tones and choose what you want play in real time.
But just to remember, the effects are unique for all. Because this the only I miss at the JD are a set of sliders to real time control of the effects area (one of the best for decades).

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quarta-feira, 8 de outubro de 2014

Power guitars

The JD-800 have some very nice guitars to play with that become classics.
 
Here, two nice examples.


MidnightHabit from Texas, USA, sent this solo with the velo crunch guitar voice 



And here, recorded by Kemodesh, Italy, the keyboard solo from Dream Theater album Awake (1994) with Roland JD-800.
This is the same sound as the original used by Kevin Moore for recording session!


sábado, 20 de setembro de 2014

The JD-800 at Rick Wakeman stage.

Some time I have not posted something due short time here.

So, a picture of Rick Wakeman with his JD-800. 
He also have JD-990s at the rack.


Show your JD-800! People who have good studio/stage photos where the JD-800 appears very clear or is the principal, please, send a message so I can post here with credits. 


Image source: Audio-Technica Helps Wakeman Deliver ‘Ultimate Experience’


PS: This is never a promotional post. I'm just a fan. Rick is a very gentle brother to share with us his talent.

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domingo, 23 de fevereiro de 2014

List of the eight original sound card Sound Libraries




Text source: jd-800.tripod.com (por Tha Villian). Visit the site for a complete list of each card and waveforms .
(I add added a few comments in the original site text).


There are Eight Sound Libraries available for the JD-800:

1. SL-JD80-01 Standard Drums
2. SL-JD80-02 Dance Drums
3. SL-JD80-03 Rock Drums
4. SL-JD80-04 Strings Ensemble
5. SL-JD80-05 Brass Section
6. SL-JD80-06 Grand Piano
7. SL-JD80-07 Guitar
8. SL-JD80-08 Accordian



Each Library consists of two cards:
SO-JD80-01 Standard Drum Waveforms | PN-JD80-01 64 Sound Patches
SO-JD80-02 Dance Drums Waveforms | PN-JD80-02 64 Sounds Patches
SO-JD80-03 Rock Drums Waveforms | PN-JD80-03 64 Sound Patches
SO-JD80-04 String Ensemble Waveforms | PN-JD80-04 64 String Patches
SO-JD80-05 Brass Waveforms | PN-JD80-05 64 Brass Sounds
SO-JD80-06 Grand Piano Waveforms | PN-JD80-06 64 Grand Piano Sounds
SO-JD80-07 Guitar Waveforms | PN-JD80-07 64 Guitar Sounds
SO-JD80-08 Accordian Waveforms | PN-JD80-08 64 Accordian Sounds


Each Set comes with two cards. A Waveform card and a Data card.

Most waveform cards also include a special setup to map various sounds to individual keys. Only the three drum cards and the Accordian Card include Drum Maps. The four other cards only map waveforms to keys.

The sounds on the patch cards are very rich and often better than the internal sounds but there are some noticable filler sounds on each card.

A few cards - String Ensemble & Grand Piano only have 7 waveforms because more memory is needed.

Unfortunately, the cards & patches are quite stunning & realistic and very hard to find. It could cost you more to buy each card individually than the cost of the Keyboard itself.

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My notes:

The waveform cards are used by position number. This means, the data card patch get the waveform by number.
So, if you just put another waveform card, for example,  the patch using the 3rd waveform will use it too.

If you have not the waveform card, try using the internal.
The data cards have somne diferent programming, so, you can use the Sysex of the card, but with the internal waveforms. Just edit the patch and assign to the internal waveform you choose. For sure you will not have the same results like the strings or pinao cards, but that are really interesting.


The String Ensembleis a must have! Try it as you can.


A last note, the Roland Fantom have the JD800 acoustic piano included. Despiste the small sample memory, it's so very good to be included there with famous others.

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