EN-11
12.
Check maximum output level (XLR jack)
Switch to XLR input with rear panel switch.
Double AP output signal level.
THD should be < 0.01%, typically 0.002%.
Check all other channel.
13.
Check short circuit protection
Set input level to get approx. 3V on the speaker output.
Short one of the outputs.
Unit should shut down nicely.
Repeat for other channel.
Summary of Contents for PA240
Page 1: ...SERVICE MANUAL POWER AMPLIFIER PA240 ISSUE A ...
Page 2: ...EN 2 Revision History Issue A Initial release ...
Page 14: ...EN 14 EN 14 L288 Pre Amplifier PCB Issue 3 ...
Page 24: ...EN 24 EN 24 L292 Power Amplifier PCB Issue 3 ...
Page 40: ...EN 40 EN 40 L283 PSU PCB Issue 1 ...
Page 44: ...EN 44 L308 Lifter PCB Issue 1 ...
Page 49: ...EN 49 L285 Front Panel PCB Issue 1 ...
Page 52: ...EN 52 Overall Dimensions ...
Page 54: ...EN 54 Exploded Drawings ...