HP R4127US, R4000, R4001XX, R4003XX, R4012US, R4025US, R4150EA, R4100 Flowchart 2.16-No Audio, Part

Troubleshooting

Flowchart 2.16—No Audio, Part 2

Continued from

“Flowchart

2.15—No Audio,

Part 1.”

N

Audio

driver in OS configured?

Y

N

Correct

drivers for

application?

Y

Connect to

external speaker.

Reload

audio drivers.

Load drivers and set configuration in OS.

N

Audio?

Y

Replace audio

board and

speaker

connections in notebook (if applicable).

Y

Audio?

N

Done

Replace the following components individually, retesting after each replacement:

■Internal speakers.

■Audio board (if applicable).

■System board.

2–24 Maintenance and Service Guide