DEC a-Series Installation And Setup Manual page 38

Troubleshooting
Table 3-3: Audio Troubleshooting
Problem
No sound.
No keyboard beeps.
Cannot record.
Distorted sound.
3–10 Installation and Setup Guide
Possible Cause
Cables not plugged in.
Driver not installed.
Volume control set low.
Headset plugged in.
No power to external
speakers.
Internal speaker not
connected.
Jumpers J40 (all sound
enabled) or J41 (buzzer) are
not in place.
Cables not plugged in.
Record volume level set
low.
Record volume level set
high.
Action
Plug in the cables.
Install the driver.
Use an on-screen volume control (if
available) to increase the volume.
Unplug headset and plug microphone
into correct connector.
Plug in external speakers.
Connect internal speaker.
Make sure J40 and J41 are enabled: that
is, jumpers connect both pins one and
two on the MLB.
Plug in the cables.
Use the appropriate control to increase
the record level.
Reduce the volume level. (Use
amplified speakers.)