Chapter 4 - Functional Verification; Performance Verification; Initial Inspection; Functional Tests - Lexicon RV-8 Service Manual

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CHAPTER 4 – FUNCTIONAL VERIFICATION

PERFORMANCE VERIFICATION

This section describes a quick verification of the operation of the RV-8 and the integrity of its analog and
digital audio signal paths.
WARNING
Dangerous voltages capable of causing death are present in this unit. Use extreme
caution when handling, testing, or adjusting.

INITIAL INSPECTION

1. Inspect the RV-8 for obvious signs of misuse, abuse, or neglect.
2. With the power off, verify that all switches operate smoothly.
3. With the power off and AC cord disconnected, remove the RV-8 top cover.
4. Verify that all cables are correctly installed and are securely fastened.
5. Check for burnt or obviously damaged components.
6. Check the voltage select connector for the primary windings of the power transformer for the analog
power supply: J14=220VAC, J15=120VAC.
7. Put the cover back on.
8. Connect the AC cord. Using the main power switch on the back of the RV-8, verify that the unit runs
through its Power On Diagnostics.
9. Check each of the front panel switches for smooth mechanical operation. Verify each LED turns on
and off when the associated switch is depressed, and that the display acknowledges each switch
function.
10. Press each button on the remote and verify that the RV-8 responds to all the remote commands.

FUNCTIONAL TESTS

The following tests verify the basic functions of the RV-8.
Power Supply Tests
The main power supply in the RV-8 has an operational range of 120/230 VAC, 50-60Hz, 1300W. The
following test is for North American line voltage of 120VAC.
Test:
1. Set the Variac to the voltage the unit is configured for (0-220 VAC) .
2. Verify that the RV-8 is powered off at its rear panel power switch.
3. Connect the AC power cord to the RV-8 AC power connector.
4. Check for power supply shorts to ground.
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