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Figure 3-2. Modified Mains Cord Set For Troubleshooting
With the mains cord unplugged proceed as follows:
a.
Remove the top cover and the inside cover as described on page 30. Remove fuse A1F1.
Failure to remove fuse AlF1 will result in damage to the unit; damage to the external DC supply and a
shock hazard to you.
b. Install control board test connector onto the A2J7 card edge fingers.
c.
Connect a 50 Ω, 40W, load resistor to the unit's output terminals.