Kurzweil PC2 Installation Guide

Kurzweil PCX-1

Polyphony Expansion Kit Installation Guide

©2000 All rights reserved. Kurzweil is a product line of Young Chang Co.; Kurzweil, PC2, PC2X, and
PC2R are trademarks of Young Chang Co. All other products and brand names are trademarks or
registered trademarks of their respective companies. Product features and specifications are subject to
change without notice.

Part Number: 910353 Rev. A November 1, 2000

Young Chang Distributors

Contact the nearest Young Chang office listed below to locate your local Young Chang/ Kurzweil representative.

Young Chang America, Inc.

P.O. Box 99995
Lakewood, WA 98499-0995
Tel: [phone]
Fax: [phone]

Young Chang Co.

178-55 Gajwa-Dong
Seo-Ku, Inchon, Korea 404-714
Tel: [phone]
Fax: [phone]

Young Chang Akki Europe GmbH

Industriering 45
D-41751 Viersen
Germany
Tel: [phone]
Fax: [phone]

Young Chang America, Inc. (Canadian Division)

3650 Victoria Park Ave. Suite 105
Toronto, Ontario Canada M2H 3P7
Tel: [phone]
Fax: [phone]

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The Polyphony Expansion Kit

Thanks for purchasing the PCX-1 Polyphony Expansion Kit! This kit (part number 140071)
doubles the polyphony of Kurzweil PC2s—from 64 voices to 128. This document contains
instructions for installing the PCX-1 in all PC2 models: the 76-key PC2, the 88-key PC2X, and
the rack-mount PC2R.

Please read the all of the introductory information (through Tools and Materials Required for

Installation ) before proceeding with the installation. Then go to Installing in Keyboard Models on

page 6 if you’re installing the PCX-1 in a keyboard, or Installing in Rack-Mount Models on page 12
if you’re installing it in a rack unit.

Contents of the Kit

In addition to this document, your PCX-1 kit should contain the following items:

• Polyphony Expansion board (PCX-1 board)

• Two screws (not needed for keyboard models)

• Floppy disk containing operating system and boot block software

• Floppy disk containing soundware

Safety Precautions

To prevent risk of electrocution, make sure that the PC2 or PC2R is disconnected from its power
supply before you begin disassembling the instrument.

Static electricity, even in small amounts, can cause damage to electronic components (especially
memory). Before disassembling the instrument, touch a conductive metal surface to discharge
any static electricity that you may have built up.

System Requirements

All PC2 series instruments contain three main software components:

Operating system software Defines the performance and editing characteristics of the PC2.
Soundware Defines the characteristics of programs and setups.
Boot block software Contains diagnostic software and other functions (like software

updates) not related to performance or editing.

Each of these components must be Version 2.0 or later for you to be able to use the PCX-1. If you
have a rack-mount PC2R, you don’t need to check your software versions, since all PC2Rs have
at least Version 2.0 of these software components. If you have any of the keyboard models, you’ll
need to check the versions of all three components, as described below.

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The Polyphony Expansion Kit

System Requirements

Checking Software Versions

Remember, if you have a rack-mount PC2R, you already have Version 2.0 or later of all three
main software components, so you don’t need to check your software versions (you can proceed
to Installing in Rack-Mount Models on page 12).

If you have a keyboard model, you do need to check your software versions. As you check each
software component, make a note of whether you need to update it. If you don’t need to update
any components, proceed to Removing the Access Panel on page 9.

Checking the Boot Block Software Version

The boot block isn’t accessible during normal PC2 operations, since the only time you’ll need to
use it is when you want to run diagnostics, install a ROM sound option, or update software.

To activate the boot block, turn the instrument on, and watch the display (if it’s already on, turn
it off then on again). When you see
starts the boot block. After a few seconds, you’ll see another message indicating that you’re
running the boot block. The bottom line of the display shows the version of the boot block
software. This message doesn’t remain visible for long, so check it quickly. If the version number
is lower than 2.0, you need to update your boot block (see page 6).

Please|wait...

, press and release the Panic button. This

To return to normal operation, press the Right cursor button until you see
bottom line of the display, then press Yes .

Run|engine

Checking the Operating System Software Version

There are two ways to check the version of the operating system software. The first is to watch
the display as the instrument powers up. During powerup, the display shows several messages.
One of these messages is
operating system software on the bottom line of the display.

The second way to check the version of the operating system software is to check the value of
one of the parameters in the Global menu. Press the Global button, then press the Right cursor
button until you see a parameter called OS Version.

Whichever method you use, if the operating system version is lower than 2.0 , you need to
update your operating system software. See Updating Operating System Software on page 7.

Welcome|to|the|PC2

; this message also indicates the version of the

Checking the Soundware Version

To check the version of your soundware, select Program 127 in the User bank (Bank 1). This is a
sine wave that the PC2 uses in its internal diagnostics. The program name is Sine , followed by
the soundware version number. If this number is lower than v2.0 , you need to update your
soundware (see page 7).

in the

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