Apollo 645-062 owner manual Bias switches and Potentiometers

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Figure 2. Removable hatchplate

1)Allow the amplifier to warm up for at least 15 minutes.

2)Turn the preamplifier off so that no signal is entering the amplifier

3)Loosen the 4 captive screws on the top hatch cover.

4)Remove the hatch cover. The bias tool is snap attached to the inside of the cover.

5)Locate the toggle switches and associated small potentiometers (they are blue and have a small screw in the top). Note the biasing meter.

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Contents Apollo Table of Contents Unpacking the Apollo Monoblocks IntroductionTools required none Connecting Apollo to the Loudspeakers Connecting the Apollos Into Your SystemConnecting Apollo to the preamplifier Triode/Ultralinear switch Connecting Apollo to the power outletOperation of the Apollo Amplifiers Setting the Tube Bias Bias switches and Potentiometers Troubleshooting Specifications Owner and Warranty Registration FormFuse Values Limited Warranty