Lexicon RV-8 Service Manual page 36

Digital Inputs To Zone 3 Outputs Test
This test will verify the audio path between the RV-8 S/PDIF coaxial digital input 1 to the Zone 3 RCA
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 Zone 3 RCA left and right Fixed 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 CX 1 TEST. Press the remote control Menu
arrow to engage the test. The RV-8 is now set to route digital audio from the S/PDIF COAX 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. The above procedure should be repeated to test S/PDIF coaxial digital inputs 2 through 4 as well as
the optical inputs 1 to 4. To do this, repeat the procedure, changing the Input Test selected in step 4
to the next appropriate input. Move the output of the CD player to the appropriate RV-8 input that
corresponds to the input selected in the AUDIO I/O TEST menu. When testing the optical inputs, be
sure to use the appropriate digital cable.
4-18
arrows scroll through the Diagnostics Menu and select the AUDIO I/O TESTS.
RV-8 Service Manual