View and Download ENSONIQ SQ user manual online. cross wave. SQ Synthesizer pdf manual download. Ensoniq SQ Pdf User Manuals. View online or download Ensoniq SQ User Manual. Abstract. This document is based on the original SQ80 Service Manual, which turned out to be hard to get. I was lucky getting a copy from.

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Note that if sq-8 fuse blows, you will need to replace both manal, as one will blow the other. Verify that the sequence is retained. If the same buttons do func- tion properly in self-test mode, then the problem is most likely scrambled software the unit will need to be re-initialized as outlined in step 14 of the SQ80 test procedure. Remove the Program Cartridge cable J2 from the main board.

Search the history of over billion web pages on the Internet. Carefully surround the nine wires that lead from the transformer to the power supply Jl with both ferrite bead halves.

The SQ80 is essentially a computer with over 80K of memory. Ground wires On some earlier units, a ground wire was attached to the ground square on the main board, which in turn was attached to the metal main board shield.

Ensoniq SQ80 Transwave Synthesizer Manuals | House of Synth

Pailure to retain internal programs and sequences may require the addition of a ferrite bead see Appendix K. Once the rear of the keyboard has cleared the control panel mounting tabs, the keyboard can be turned over. Filter Tune a While holding the Record button, press the Filter button.


Place the unit upside down on a soft surface and remove the four screws that attach the wheel assembly to the case. The SQ80 writes information to every track on a disk, so it is imperative that the disk be of superior quality and certified for double- sided use.

ENSONIQ SQ-80 Manuals

Re-Initialization of Unit The following procedure is not a normal part of the test, and should only be performed in the event that the software becomes scrambled or if indicated as part of another procedure in this manual.

Save any important data before re-initializing. This configuration is denoted by both the label on the top of the transformer and the part number silk-screened on the lower left of the power supply PC board. This can result from loading data off of a bad disk or not clearing out the system memory after a MIDI SysEx transfer.

If certain buttons do not function properly during normal SQ80 operation, test them while the unit is in self-test mode. Turn the unit off and turn it upside down on a soft surface to replace the ten screws that secure the keyboard to the case.

Later, a brass insert was added to the main board ground boss and the ground wire from the main board was eliminated. Be sure that the cable lies beneath the keayboard and is not pinched under the keyboard frame.

Appendix D Replacing the Power Supply 1. Return the unit to an upright position. These peanuts may cause severe damage to the disk drive, keyboard, or cartridge port. If a metal main board shield is present, remove the six screws that fasten it to the case and keyboard frame. When the glue sets, the screws will hold the sub-assembly tightly in place. In the event that it becomes necessary to re-initialize the memory during repair it is manaul recommended that the internal memory both programs and sequences of the unit to be saved to disk before servicing.


Eailure to hear the metronome indicates a main board problem. To replace the line filter, first make sure that the foil shield is in place. Note that there are lock washers on the inside only.

If a unit has shields, make sure to put them back in. Try level between the two.

Ensoniq SQ Manuals

Double Button Presses In some units there have been problems selecting certain program posi- tions. Pressing various front panel buttons will cause the display to print characters, underscore characters, clear the screen, etc.

Note; In some cases, a defective main board can garble the contents of the storage cartridge. If the unit now enters the self-test mode, this indicates a main board or keyboard problem. Do not tighten the screws any further. Use a tyrap to keep the enaoniq bead as close to the power supply connector Jl as possible.