Distortion Lg; Noise Lg - Korg PA3X Service Manual

Distortion LG – 10 step
1-10 IN Left Direct To Left
2-10 IN Left Direct To Right
3-10 IN Left TG To Left
4-10 IN Left TG To Right
5-10 MIC To Left
6-10 MIC To Right
7-10 MIC To Out 1
8-10 MIC To Out 2
9-10 MIC To HP Left
10-10 MIC To HP Right
Connect 600ohm Audio Analyzer generator output to the label below specified inputs, then
check the relative output distorsion.
Mic gain potentiometer must be turned to the minimum level
MIC In Left In
1kHz 5Vpp
Jack dummy
1kHz 5Vpp
Jack dummy
1kHz 1Vpp
1kHz 1Vpp
1kHz 1Vpp
1kHz 1Vpp
0,5kHz 1Vpp
0,5kHz 1Vpp
Noise LG – 10 step
1-10 Left
2-10 Right
3-10 TG To Left
4-10 TG To Right
5-10 MIC To Left
6-10 MIC To Right
7-10 MIC To Out 1
8-10 MIC To Out 2
9-10 MIC To HP Left
10-10 MIC To HP Right
Connect Audio Analyzer input to the label below specified outputs, then check the relative
noises
Mic gain potentiometer must be turned to the minimum level
MIC In Left In
Jack dummy
Jack dummy
Right In Left Out
Jack dummy < 0,1%
1kHz 5Vpp Jack dummy
Jack dummy < 0,1%
1kHz 5Vpp Jack dummy
< 0,1%
Jack dummy
Right In Left Out
Jack dummy < -90dB
Jack dummy
Jack dummy < 0,1%
Jack dummy
< -90dB
Jack dummy
Right Out Out 1
Jack dummy
< 0,1%
Jack dummy
< 0,1%
Jack dummy
< 0,1%
< 0,1%
Right Out Out 1
Jack dummy
< -90dB
Jack dummy
< -90dB
Jack dummy
< -90dB
< -90dB
Out 2 HP L HPL R
< 0,1%
< 0,1%
< 0,1%
Out 2 HP L HPL R
< -90dB
< -90dB