The JJ OS FAQ

General MPC 1000 FAQ

http://stereoroid.com/music/mpc1000/faq/

>> Impressive overall MPC 1000 FAQ! Covers a lot of questions related to the MPC1000 Hardware.

Q: How many characters can a sample name contain?
A: 16 characters max, w/o the .wav suffix.

Q: What’s the maximum capacity for CF Cards for use with the MPC 1k?
A: Although AKAI says, it only could handle CF Cards with 2GB memory, 4 and 8 GB CF Cards have been reported working!
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JJ-OS Basics (any version):

Q: Where can I get the JJ-OS?
A: Click Here

Q: What are the differences between AKAI and JJ-OS?
A: Check out the JJ-OS Comparison Chart to find out…

Q: How Do I install any of the JJ-OSs?
A:There are 2 ways of doing it:

A) You’re switching over from an AKAI OS to any JJ-OS or
B) You’re Updating from previous JJ-OS builds.

In Case A, the OS has got to be installed from the CF Card, because the AKAI OS cannot open .bin and .os2 files! Put the CF card with the OS file in the MPC. Turn it off. Next, hold down the [WINDOW] button and switch the unit back on… follow the instructions on screen to install the new OS. After JJ-OS is installed, you can open .bin or .os2 files from the Load Browser. The CF Card is not needed for later updating.

In Case B, just put the OS-File on the HD or CF Card and execute it from the Load screen. After the installation is done, Restart your MPC and you’re good to go.

Q: I’m looking for an older build of the JJ-OS – Where can I find it?
A: Dowload the JJ-OS Collection here Install at own risk!

Q: How can I change the contrast after I’ve installed the new OS?
A: Hold [STOP] and turn the DATA wheel to adjust the contrast. After you’ve set the contrast press [MAIN] so the setting will get stored.

Q: I’ve just installed the JJ OS, but the infamous Directory Error still occurs when I save! Why?
A: After installing JJ OS, you have to format your HDD or CF Card to avoid these errors. But make a backup of your files before formatting!

Q: I’ve just installed the JJ OS and the MPC behaves weird. What can I do?
A: Reset the MPC to factory defaults: Turn off your MPC, hold [ERASE], turn it on.

Q: Will I lose my serial, when I uninstall JJ’s OS?
A: No. Once the serial is entered, it won’t get lost. You can switch back and forth between AKAI’s and JJ’s Operating Systems without problems.

Q: When I turn on my MPC, the Tempo Setting is changed from [SEQ] to [MAS] or vice versa. Why?
A: Make sure to press MAIN after selecting the Tempo setting of your choice, so the changes will get stored.

Q: What’s the best way to save my work?
A: Create a new folder and select the option ‘SAVE ENTIRE MEMORY’.

Q: What’s the best way to load my work properly?
A: Enter the folder with the project you want to open and load the Project File (.prj), it’s the first file in the folder. This technique is more reliable than just loading the folder!

Q: Do I have to pay for every update?
A: No, of course not.

Is it possible to clear all events while the MPC 1000 is playing back?
A: No.
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OS 2 specific FAQ:

Q: Do I have to install JJ OS 1 to run OS 2?
A: Yes. And if you want to save your work in both of these OSes, you need to buy both passwords, too.

Q: How can I uninstall JJ OS 2?
A: “How to” not confirmed working yet. But basically, you’ve to install the AKAI OS again, then a JJ-OS 1 version. But the JJ-OS switcher screen remains, from what is known so far… update following.

Q: Where’s the [PURGE] function in OS 2 hidden?
A: Enter GPE [MODE + PAD7] > Highlight the ‘SAMPLE’ Column > Press WINDOW 2x > Purge appears on F1.
Alternative Route I: Highlight the sample column in MAIN screen, then press [WINDOW] 2x.
Alternative Route II: Enter Trim Mode [MODE + PAD6] > Press [WINDOW] > F1

Q: Where has track velocity setting gone
A: it’s been replaced by the track mixer; press [MODE]+PAD4.
You can also use the LEVEL controls inside GPE to do so: [MODE]+PAD7 > [F6] (Out) > ‘LVEL’ column (combine with [WHOLE]).

Q: Where can I find the [WHOLE] function in GPE?
A: In GPE, hold [SHIFT] and Press [F6]

Q: In GRID EDIT, how can I display the program/samples in use?
A: Hold [SHIFT] and press the [F3] or [VIEW] (F4) to toggle the display on or off.

Q: How can I record effect changes?
A you need to create a new effect setting and setup the automation of changing the effect program via Step Edit. Duplicate your FX Setups, with variants of each all ready to go, then call them up as effect events in the Sequence, (insert effect#XX – in the event list – at the required step in a seq, or at the start of any seq that requires that particular FX). Then in each seq, the FX set will switch between the variants as the FX# event is triggered. But you can only backup 20 effects programs (inside All Seqs and Song).
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OS 1 FAQ (also applies to OS 2 for the most part) :

Q: Should I switch to the JJ OS?
A: Yes. It doesn’t matter how you use your MPC, the JJ OS is a more professional, featured, and capable system.

Q: Does it have any Bugs?
A: Yes and No. The programmer releases the OS in frequent updates with new features and bug fixes. As a result, there are sometimes small bugs that you can report on their web site. However, there are no bugs that exist in the JJ OS that are as serious as those that exist in the AKAI OS, which is known to mangle your saved files.

Q: How can I switch between OS 1 and OS 2?
A: Just hold [TAP TEMPO] and turn the MPC on, to switch/ set another JJ OS as default. (Also shown at the boot screen).

Q: How do I set the the Tempo and Bars of the default Sequence?
A: In Main Screen highlight the Sequence (Sq) and press [WINDOW]. Press F3 to set the sequence’s default name, tempo, and bars.

Q: Why does the Tap Tempo function not work after I’ve installed JJ OS.
A: The function is presumably deactivated by default. To enable it press [MODE] > [OTHER] > [MISC.]. In the field ‘Tap Average’ change the value from ‘OFF’ to ‘2′ or ‘4′.

Q: How can I change the swing and shift timing in real-time while recording?
A: In MAIN screen Press [T.C.]. In the next screen press [Q-LINK] and assign ‘Swing’ and / or ‘Shift’ to the Q-Link Sliders

Q: Do I have to jog all the way up to Track 57 to use Direct Record?
A: No. Hold [SHIFT] in MAIN Screen and press [F4] to quick select Audio Tracks, or change the track type to AUDIO.

Q: Is there a shortcut to toggle ‘INPUT THRU’ On and Off?
A: Hold [SHIFT] in MAIN Screen and press [F6] to quick select Input Thru.

Q: After I chop, why do all my samples cut each other off?
A: Your program is set to MONO by default after chopping. Change it to ‘POLY’.

Q: When I load samples they don’t auto-assign to the Pgm. Why is that?
A: Press window in the load screen. Then turn on ‘Sample assign to pad Window’.

Q: How can I turn on ‘Auto step increment’ in Grid Edit?
A: In Grid Edit press [WINDOW] and set the option to ‘ON’.

Q: Where can I find the Ring Modulator and the Bit Depth Converter?
A: Both features can be found in the EDIT section of the Trim Mode.

Q: So where’s Pong hidden?

A: Pong was removed from the code because the space reserved for the OS is limited to approx. 890kb. It was removed to make way for more important features. But you can play Pong online here: http://www.guimp.com/pong_flash.html

Q: In GPE, how can I select a specific pad range?
A: after you press whole in GPE, hold down F4 (first Pad in range) and/ or F5 (last pad in range) to select a group of pads other than A1 – D16.

Q: How do I create and set my own Splashscreen?
A: Check this Splashscreen FAQ

To be continued…