Table of Contents
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Table of Contents
Summary of Contents for Mattson SQ816
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Page 2: Table Of Contents
Table o’ Contents Welcome ......................... 3 Unpacking, Power Requirements, and Power Up Procedure ......... 4 SQ816 Panel Layout ....................... 5 Definitions ........................6 Timing Section ......................... 8 Stage Control Section ....................10 Stage Matrix ......................... 11 Response Control Section .................... 13 Output Section ....................... -
Page 3: Welcome
The SQ816 sequencer is a joint project between Mattson Mini Modular and Division 6 that has been in development for more than a year. And what a sequencer it has become! There are two formats - each is available from either the Division 6 or the Mattson Mini Modular web sites, or from select dealers. -
Page 4: Unpacking, Power Requirements, And Power Up Procedure
The +V line draws 86mA, while the –V line draws 32mA. The SQ816 has a 10 pin dual row keyed power header and a 6 pin MTA header on the main board. Either connector can be used to power the system. -
Page 5: Sq816 Panel Layout
SQ816 Panel Layout... -
Page 6: Definitions
Gate: A voltage change used for initiating a specific event. Usually going from 0V to either +5V or +15V Stage Gate: A gate generated from the activation of a specific stage event. The SQ816 stage gates produce a +5V gate pulse. - Page 7 Definitions (continued) Zoned Mute: Two regions in the upper CW position of the CV-A and CV-B controls for determining if the Main Gate or Main Gate and Stage Gate are suppressed for a specific stage. During a stage specific mute, the previous valid generated CV if held during the muted stage.
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Page 8: Timing Section
Timing Section The Timing Section sets stage advance timing and contains the LED Clock Indicator Master Clk: Rate control for internal clock. Using the Master Clock panel control, the minimum rate is about 10 seconds per stage and the maximum rate is about 100 Hz. Both limits can be affected by a control voltage applied to the Clk CV In jack and adjusted with the Clk CV Amt control. - Page 9 Timing Section (continued) ROG In: Run On Gate Input. See the User-Programmable Functions section for more detail on the ROG Input. Footswitch: An input jack for a normally-open shorting type footswitch. It performs the same function as the pushbutton. See the User-Programmable Functions section for more detail on using the Footswitch input. USB: See the Interface Section for more details.
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Page 10: Stage Control Section
Stage Control Section The Stage control section includes operational settings for programming, stopping and running the sequencer. Included are stage advance controls for setting forward, reverse, or ping pong operation. In addition, the duration of each stage can be set to be constant, or determined by the internal VC Clock under control of the VAR knob settings. -
Page 11: Stage Matrix
Stage Matrix The Stage Matrix includes the controls for setting the values of each row for each stage and LEDs for indicating stage status. The stage controls are in a matrix of three rows and eight columns with a status LED above each column. - Page 12 Stage Matrix (continued) Var row: Used for selecting a CV output for the active stage. CV output range is approximately 0 to 3 Volts. The direct CV is available at the Var Out jack. If the Var/Equal switch is in the Var position, this CV setting is applied to the VC Clock timing.
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Page 13: Response Control Section
Response Control Section The Response Control Section includes controls for setting operational parameters. 8/16 select switch: Sets the mode to 8 channel or 16 channel operation. Also used when toggled back and forth within one second to invoke user programs. Loop/1X select switch: Determines if the sequencer will advance to the end in one pass or loop continuously. -
Page 14: Output Section
Output Section The Output Section includes the outputs and controls for the CV channels, the Gate and Clock outputs, and interfacing. “Lots of Stuff” pushbutton: Primary user input switch based on current mode. In pROG mode, advances the stage once per button press, it generates one clock pulse per press. If held in pROG mode continuously for over three seconds, the stages will advance at the clock rate until released. - Page 15 Output Section (continued) Gate Out: Main gate output typically applied to an Envelope Generator. Programmable for Short, Follow (clock cycle) and Long. See the Gate Length feature in the User-Programmable Functions section for more details. CV-B X In: An external VC input that is applied to the CV-B output. Primarily used for multiple system interfacing.
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Page 16: Interface Section
XP Out: (eXPansion out). Generates a start pulse at the end of a sequence +1 clock pulse. (useful for starting another sequencer in time) If the SQ816 sequencer is in 1X mode, patching XP out to XP in essentially performs the same function as Placing the Loop/1X switch in the Loop position.. -
Page 17: User-Programmable Functions
User-Programmable Functions... - Page 18 If the SQ816 is in Ready mode, the program will affect all of the selected banks. If the SQ816 is in Active mode (i.e. a stage is lit), the active stage number will specify which stage has a parameter programmed (e.g.
- Page 19 (Active stage is muted or the sequencer is in Ready mode). Note: While in Stop Mode, the first button press is used put the SQ816 in Active mode and set the active stage to the beginning. Subsequent Push Button presses will start the Tap Tempo programming procedure. To perform Tap Tempo programming without resetting the SQ816 to the beginning stage, apply a Gate to the ROG input while programming Tap Tempo.
- Page 20 B setting is not the same as the 16 channel setting when CV-B shifts to the CV-A out bus, i.e. if stage 3B is programmed up an octave and the SQ816 is switched from 8 to 16 channel mode, Stage 11 will not be changed by the octave operation and will need to be set separately.
- Page 21 User-Programmable Functions (continued) To activate, step the SQ816 to the stage number that is equal to the desired MIDI channel. Place the Run/Stop/pROG switch into the Stop position. Use the Fwd/PP-Rnd/Rev switch to select the desired bank to change (“Fwd” = A, “PP-Rnd” = A and B, “Rev” = B), and then toggle the SOS/SON switch back and forth within 1 second to program the MIDI Channel.
- Page 22 “Norm” position. If the jumper is installed on the center and right pins (Alt position), the SQ816 Sequencer will accept a N/C footswitch. Actually, in this mode, the SQ816 will determine which type of footswitch is connected to the Footswitch input jack and configure its operation accordingly.
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Page 23: Adjustments And Trim Procedures
Adjustments and Trim Procedures bRATE +RATE R130T Footswitch Jumper MIDI out Norm MIDI in 1: Clock LED Red brightness Power up. In Ready mode, using the internal VC clock (not Tap-Tempo) the clock LED flashes red, indicating a main gate mute. Adjust R121T (cRD) to brighten or dim the clock LED. 2(a): Clock LED Green brightness Set the 8Ch/16Ch switch up to the 8ch position. - Page 24 They work well together, but may not be as compatible when the SQ816 is inserted into the chain. We have provided this calibration information if you have the need to perform fine adjustments to make it perform accurately with your system.
- Page 25 Adjustments and Trim Procedures (continued) 8: CV-A X In Adjust The CV-A X In input is just an external signal input to the CV-A output final amplifier. Sort of a buffered “through.” Once the output amplifier is adjusted properly, we want to ensure that whatever is patched into the CV-A X In jack is faithfully reproduced at the CV-A out jack.
- Page 26 Find a patch on the sound generating device that is constant with no effects or modulation such as a flute or cello setting. When the SQ816 Sequencer is in pROG mode, it will remain on the current stage setting and generate MIDI notes at the clock rate. ...
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