Lexicon RV-8 Service Manual page 34

Phono Input To Main Zone Outputs Test
This test will verify the audio path between the Phono inputs labeled left and right, to all Main Zone
Outputs.
Test:
1. Connect the low distortion oscillator output to the Phono left and right inputs on the rear panel of the
RV-8.
2. Connect the RCA front left and front right outputs of the RV-8 to the external amplifier left and right
inputs. Connect the outputs of the external amplifier to the pair of speakers.
3. Using the Menu /
4. In the AUDIO I/O TESTS menu, highlight AUDIO PHONO TEST. Press the remote control Menu
arrow to engage the test. The RV-8 is now set to route audio from the Phono left and right inputs to all
Main Zone outputs.
5. Power on the external amplifier. Slowly increase the volume on the external amplifier to a comfortable
listening level.
6. Sweep the oscillator from 20Hz to 20kHz. Verify that clean, undistorted audio can be heard
throughout the frequency sweep.
7. Power down the external amplifier.
8. Repeat steps 5 through 7 for the remaining paired RCA outputs (center/sub, side L/R, and rear L/R).
Digital Inputs to Main Zone Outputs Test
This test will verify the audio path between the S/PDIF coaxial and optical digital audio inputs labeled 1 to
4, and all Main Zone analog outputs.
Note:
This test requires the use of a CD player as a source. The tests to follow will be run using a PCM signal at
a 44.1kHz sample rate.
Test:
1. Connect the S/PDIF coaxial digital output of the CD player to the S/PDIF coaxial digital input 1 on the
RV-8 rear panel. Connect the S/PDIF optical digital output of the CD player to the S/PDIF optical
digital input 1 on the RV-8 rear panel.
2. Connect the RCA front left and front right outputs of the RV-8 to the external amplifier left and right
inputs. Connect the outputs of the external amplifier to a pair of speakers.
3. Using the Menu /
4. In the AUDIO I/O TEST Menu, highlight S/PDIF INPUT CX1 TEST. Press the Menu
engage the test. The RV-8 is now set to route digital audio from the S/PDIF coaxial digital input
labeled 1 to all the RCA analog outputs.
5. Power on the external amplifier. Press Play on the CD player.
6. Slowly increase the volume on the external amplifier to a comfortable listening level.
7. Verify that clean, undistorted audio can be heard.
8. Stop the CD player and power down the external amplifier.
9. Repeat steps 2 through 8 for the remaining paired RCA outputs (Center/Sub, Side L/R, Rear L/R).
4-16
arrows, scroll through the Diagnostics Menu and select the AUDIO I/O TESTS.
arrows, scroll through the Diagnostic Menu and select the AUDIO I/O TESTS.
RV-8 Service Manual
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