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Testing the Power Supply Line-Stage Combination
Be safe as you plug in the AC cord. Remember that lethal voltages will be
present inside the preamp.
Verify that the power supply output voltages are still in tolerance after
connecting the power supply to the rest of the preamp.
Measure DC voltage from any of the P15 terminals to any of the GND
terminals. It should be 15 Volts, plus or minus 1 volt.
Measure DC voltage from any of the N15 terminals to any of the GND
terminals. It should be -15 Volts, plus or minus 1 volt.
Final Re-Assembly
Once you have verified correct voltages, it’s time to return your PAT-5 Preamp to
service.
Putting on the Cover
Done? (
)
Place the cover on the preamp. Note that there is only one correct
orientation. You’ll see the 4 holes on the sides line up when the orientation
is correct.
Install the 4 black screws (2 on each side) that hold the cover in place
Install the black screw that holds the center-back of the cover to the back
panel.
