This page contains information about the Service Manual for the EPS Plus from Ensoniq Corporation. Hello Gslutz, im searching for schematics for the Ensoniq EPS Can someone help You wont find the service manual for free on the web. 21 EPS—16 PLUS Service Manual Table of Contents — 1 Table of Contents . For more information about the Poly-Key Keyboard assembly, see ENSONIQ.

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Reinstall the knobs on the Data Entry and Volume sliders. Please read this carefully.

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Be sure to keep the soldering iron on an angle away from the plastic case to avoid burning the plastic case. Press and hold down the three lowest white keys. Create New Wavesample Whenever the Main Board wants to put a message on the Enwoniq, it sends the message to the Keyboard assembly which then passes it on to the Display.

Remove the one 1 machine screw from the bottom of the unit located about 1″ back from the control panel this screw goes through the disk drive mounting bracket inside the unit.


Ensoniq EPS 16+ Service Manual

Immediately place defective drive in the anti-static bag that the new drive came in. Connect the Keyboard Ribbon cable to the Main Board.

When you release the keys, the notes should sustain. Remove the control panel see Section B. See the flow charts on pp. Free System Blocks Analog Test Page a.

The operation of the OEX-6 can be tested using the following procedure: There was not enough memory in the EPS to append all tracks. Fps the three 3 wires connected to the back of the Filter, paying particular attention to the polarity. This was most noticeable when the sustain pedal was held while playing piano-like sounds.

To keep this from happening, follow these procedures: All the special segments on the left side of the display will light and the display will read: Sometimes, these notes were not heard. Disconnect the transformer cables to the power supply, line esoniq, and power switch.

ENSONIQ EPS 16 Plus Service Manual

Make sure the Disk Drive ribbon cable is not caught under the Keyboard standoffs. We have found that some units have developed further problems once a module has been changed.


Power up, test the unit, and close the control panel. If the datecode ischeck the serial number label on the side of the drive. Printed manual is no longer available.

Full text of “Ensoniq EPS 16+ Service Manual”

Mono Output and Headphone Test a. Getting Ready To Sample The communications path is shown in Figure 1. A file name should appear in the display.

Voltages should read as in the chart on page 6. With the board tilted on a slight angle, insert manuwl jacks into the holes in the rear panel Press the board down and into place.

If the memory expander board is a REV A, there should only be two screws holding it in. The AC ripple on these pins should be less than 50mV. Eject the test disk and then reinsert the test disk and press Load.

Disconnect the two cables from the Disk Drive, paying particular attention to the polarity.