Audio In Lg - Korg PA3X Service Manual

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Connect oscilloscope probes to Out1 and Out2 connected MONO jacks check output
levels:
Left typical level 3Vpp +/- 0,5Vpp
Audio In 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 levels. (+/- 0,5Vpp)
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
Right typical level 3Vpp +/- 0,5Vpp
Right In
Left Out
Jack dummy
4,5Vpp
1kHz 5Vpp
Jack dummy
Jack dummy
1kHz 3,8Vpp
1kHz 5Vpp
Jack dummy
8 Vpp
Jack dummy
Right Out
Out 1
Jack dummy
4,5Vpp
Jack dummy
1kHz 3,8Vpp
Jack dummy
8 Vpp
7, 8 Vpp
Out 2
HP L
HPL R
7, 8 Vpp
3 Vpp
3 Vpp

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