Specifications
Troubleshooting Symptom Charts/Sound Problems - 7
Sound Problems
Distorted or no sound
coming through one
speaker
Disconnect the wires to both speakers. Using jumper cables,
connect the right speaker wire to the left speaker and the left
speaker wire to the right speaker. This will isolate the problem to
a defective speaker or a defective main deflection board.
Distorted or no sound
in both speakers
1 Try another sound source to ensure that you are not using a
defective CD or other sound device.
2 Replace the main deflection board.
On a Performa 6400,
sound comes through
Performa subwoofer
even though
headphones are
plugged into
headphone jack on
front of display
To mute the subwoofer, do any one of the following:
• Keep headphones plugged into headphone jack on front of
display, but mute subwoofer using Sound and Displays
Control Panel.
• Keep headphones plugged into headphone jack on front of
display, but lower volume of subwoofer by turning balance
control knob at rear of Performa 6400 fully
counterclockwise.
• Plug headphones into headphone jack on front of Performa
6400.
• Plug headphones into headphone jack at rear of Performa
6400.