Lenovo PC 300PL Technical Information Manual 6275, 6285 - Page 21

Audio Subsystem, Audio Upgrade - drivers

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Chapter 2. System-Board Features Audio Subsystem All PC 300PL (Types 6862 and 6892) models come with integrated audio. Some PC 300GL (Types 6275 and 6285) models come with a Crystal audio adapter. These models, which are capable of playing and recording sounds, support SoundBlaster, Adlib, and Microsoft Windows Sound System applications. The audio adapter in these models has a 4237B Crystal audio chip with integrated SRS 3D sound technology that supports FM synthesis. The device drivers for the preinstalled audio adapter are on the hard disk drive. The device drivers are also available on the Ready-to-Configure CD provided with all models. If you connect an optional device to the audio adapter, follow the instructions provided by the manufacturer. (Note that device drivers might be required. If necessary, contact the manufacturer for information on these device drivers.) The following ports are available on the audio adapter or integrated audio controller: Game/MIDI (Musical Instrument Digital Interface) for connecting a game control or a musical device, such as an electronic keyboard.2 This feature is available on PC 300GL (Types 6275 and 6285) only. Line Out port for connecting powered speakers. Your audio system requires a set of speakers connected to the Line Out port in order to hear audio from the adapter. These speakers must be powered with a built-in amplifier. In general, any powered speakers designed for use with personal computers can be used with your audio adapter. These speakers are available with a wide range of features and power outputs. Line In port for connecting musical devices, such as a portable CD-ROM or stereo. Microphone for connecting a microphone. Audio Upgrade PC 300GL (Types 6275 and 6285) models that have a preinstalled Crystal audio adapter can be upgraded with an optional wavetable synthesis audio chip (such as the Cirrus Logic Single-Chip Wavetable Music Synthesizer, part number CS9236 Wavetable 20 FCS). This chip, when properly installed in the 28-pin, PLCC socket on the audio adapter, allows the user to play MIDI files with enhanced musical attributes through the MPU-401 interface that is utilized by the upgrade chip. Note: In order to implement wavetable functionality (MPU-401), the Cirrus Logic CS9236 Wavetable 20 FCS upgrade chip must be installed in the upgrade socket of the audio adapter. For OS/2 and Windows NT users, separate device drivers are required to enable the wavetable (MPU-401) function. These device drivers are available on the World Wide Web under IBM PC Support at http://www.pc.ibm.com/us/ibmpc Once you get to the IBM PC Support page, look for your device drivers among the links at that location. The Cirrus Logic CS9236 Wavetable 20 FCS upgrade chip can be purchased in small quantities (less than 500) by contacting NuHorizons, a Cirrus Logic distributor, at http://www.nuhorizons.com on the World Wide Web. NuHorizons can also be reached at 1-888-747-NUHO for US domestic shipments, or 973-882-4290 for international shipments. 2 An electronic device connected to the Game/MIDI port might require an optional adapter cable. For more information, refer to the documentation that comes with the electronic device. Chapter 2. System Board Features 9

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Chapter 2.
System-Board Features
Audio Subsystem
All PC
300PL (Types 6862 and 6892) models come with integrated audio.
Some PC
300GL (Types 6275
and 6285) models come with a Crystal audio adapter.
These models, which are capable of playing and
recording sounds, support SoundBlaster, Adlib, and Microsoft Windows Sound System applications.
The
audio adapter in these models has a 4237B Crystal audio chip with integrated SRS 3D sound technology
that supports FM synthesis.
The device drivers for the preinstalled audio adapter are on the hard disk drive.
The device drivers are
also available on the
Ready-to-Configure
CD provided with all models.
If you connect an optional device to the audio adapter, follow the instructions provided by the
manufacturer.
(Note that device drivers might be required.
If necessary, contact the manufacturer for
information on these device drivers.)
The following ports are available on the audio adapter or integrated audio controller:
Game/MIDI (Musical Instrument Digital Interface)
for connecting a game control or a musical device,
such as an electronic keyboard.
2
This feature is available on PC
300GL (Types 6275 and 6285) only.
Line Out
port for connecting powered speakers.
Your audio system requires a set of speakers
connected to the Line Out port in order to hear audio from the adapter.
These speakers must be
powered with a built-in amplifier.
In general, any powered speakers designed for use with personal
computers can be used with your audio adapter.
These speakers are available with a wide range of
features and power outputs.
Line In
port for connecting musical devices, such as a portable CD-ROM or stereo.
Microphone
for connecting a microphone.
Audio Upgrade
PC
300GL (Types 6275 and 6285) models that have a preinstalled Crystal audio adapter can be
upgraded with an optional wavetable synthesis audio chip (such as the Cirrus Logic Single-Chip
Wavetable Music Synthesizer, part number CS9236 Wavetable 20 FCS).
This chip, when properly
installed in the 28-pin, PLCC socket on the audio adapter, allows the user to play MIDI files with enhanced
musical attributes through the MPU-401 interface that is utilized by the upgrade chip.
Note:
In order to implement wavetable functionality (MPU-401), the Cirrus Logic CS9236 Wavetable 20
FCS upgrade chip must be installed in the upgrade socket of the audio adapter.
For OS/2 and
Windows NT users, separate device drivers are required to enable the wavetable (MPU-401)
function.
These device drivers are available on the World Wide Web under IBM PC Support at
Once you get to the IBM PC Support page, look for your device drivers among the links at that
location.
The Cirrus Logic CS9236 Wavetable 20 FCS upgrade chip can be purchased in small quantities (less than
500) by contacting NuHorizons, a Cirrus Logic distributor, at http://www.nuhorizons.com on the World Wide
Web.
NuHorizons can also be reached at 1-888-747-NUHO for US domestic shipments, or 973-882-4290
for international shipments.
2
An electronic device connected to the Game/MIDI port might require an optional adapter cable.
For more information, refer to the
documentation that comes with the electronic device.
Chapter 2.
System Board Features
9