Lexicon RV-8 Service Manual page 22

RV-8 Service Manual
Power Supplies
The following tests and information will verify the voltages and handling issues of the RV-8.
Lethal voltages are present on the RV-8 heat sinks. DO NOT come into contact with the
Amplifier Output Transistors or the heat sinks. Power Supply Discharge time is more
than ten minutes unless manually discharged.
WARNING
Whenever the RV-8 covers are removed, the amplifier channels carry a lethal voltage.
Stay clear of them when testing the inside of the RV-8. When replacing the channels, it is
important to discharge them before removing them from the chassis. Follow the safety
and handling procedures below when service is required inside the RV-8.
Discharging The Power Supply:
1. The unit must be disconnected from the AC Power before it is discharged.
2. Wait ten minutes.
3. Remove the top cover and measure the voltage from positive (+) to negative (-). See figure 1 below.
Measure the Voltage from Positive to Negative
Figure 1:
+
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