IBM 9228 Service Guide - Page 23

Rear view, IEEE 1394A FireWire connectors

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Page 23 highlights

Rear view System-error LED When this LED is lit, it indicates that a system error has occurred. An LED on the system board might also be lit to help isolate the error. If the LED on the system board is not lit, check the error log. CD or DVD drive activity LED When this LED is lit, it indicates that the CD or DVD drive is in use. CD or DVD eject button Press this button to insert a CD or DVD into or remove a CD or DVD from the CD or DVD drive. Headphone connector (green) Use this connector to send audio signals from the computer to external devices, such as speakers with built-in amplifiers, headphones, multimedia keyboards, or the audio line-in jack on a stereo system. Microphone connector (pink) Use this connector to connect a microphone to the computer when you want to record voices or other sounds on the hard disk. You can also use this connector (and a microphone) with speech-recognition software. USB connectors Use these connectors to connect USB devices to the computer, using redundant Plug and Play technology. IEEE 1394A (FireWire) connectors Use these connectors (four-pin on the front and six-pin on the rear) to connect FireWire devices, such as digital video cameras and external hard disk drives. Optional diskette-eject button Press this button to release a diskette from the diskette drive. Optional diskette drive activity LED When this LED is lit, it indicates that the diskette drive is in use. The following illustration shows the connectors and indicators on the rear of the computer. Chapter 1. Introduction 5

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System-error LED
When this LED is lit, it indicates that a system error has occurred. An LED
on the system board might also be lit to help isolate the error. If the LED on
the system board is not lit, check the error log.
CD or DVD drive activity LED
When this LED is lit, it indicates that the CD or DVD drive is in use.
CD or DVD eject button
Press this button to insert a CD or DVD into or remove a CD or DVD from
the CD or DVD drive.
Headphone connector (green)
Use this connector to send audio signals from the computer to external
devices, such as speakers with built-in amplifiers, headphones, multimedia
keyboards, or the audio line-in jack on a stereo system.
Microphone connector (pink)
Use this connector to connect a microphone to the computer when you
want to record voices or other sounds on the hard disk. You can also use
this connector (and a microphone) with speech-recognition software.
USB connectors
Use these connectors to connect USB devices to the computer, using
redundant Plug and Play technology.
IEEE 1394A (FireWire) connectors
Use these connectors (four-pin on the front and six-pin on the rear) to
connect FireWire devices, such as digital video cameras and external hard
disk drives.
Optional diskette-eject button
Press this button to release a diskette from the diskette drive.
Optional diskette drive activity LED
When this LED is lit, it indicates that the diskette drive is in use.
Rear view
The following illustration shows the connectors and indicators on the rear of the
computer.
Chapter 1. Introduction
5