Sound Quality Diagnosis - Left/Right Channel ID

Sound Quality Diagnosis - Left/Right Channel ID

Special Tools Required

- Diagnostic CD 07AAZ-SDBA100
Use the following tests to check sound quality.

NOTE: Before beginning the following tests, write down the client's bass, treble, fader and balance settings, then set them to their center positions for the testing.

Left/Right Channel ID

Do this test to confirm proper channel routing.

1. Insert the audio diagnostic CD (T/N 07AAZ-SDBA100) into the audio unit.

2. Play track No. 1 (left, both, right channel ID) at a normal, or slightly higher than normal, volume level.

3. The voice should be audible only from the channel or channels when indicated.
- If the channel ID is correct for each side, go to phase test.

- If the channel ID is not correct, check for:
- Shorted speaker wire

- Faulty amplifier

- Faulty audio unit