Line Input; Distortion; Noise Level - Korg PA500 Service Manual

<<LINE INPUT>>
This is measurement output corresponding to input. Push [START/STOP] to proceed.
[VOLUME] slider: Max,
Equipment: LPF 20z, PSOPHO:no, MODE: AC LEVEL
Oscillator: Sine-wave 1KHz, +4dBm
Measurement and Reference level
Measurement must be done at the same time INPUT LEVEL and Crosstalk of same number.
Item
1 LINE INPUT LEVEL
2 LINE INPUT LEVEL
<<Distortion>>
This is measurement of distortion. Push the [START/STOP] to proceed the check.
[VOLUME] slider: max,
Equipment: LPF 20KHz, PSOPHO: no, MODE DSTN
Oscillator: Sine-wave 1KHz, +4 dBm for OUTPUTL,R -6dBm for PHONES L,R
For PHONES: 33OHM Load
Item
1

DISTORTION

2 DISTORTION
3 DISTORTION
4 DISTORTION
<<Noise Level>>
This is measurement of noise. Press the [START/STOP] to proceed the check.
[VOLUME] slider: max,
Equipment: LPF 20KHz, PSOPHO: A MODE AC LEVEL
Oscillator: stop output
Item
1

Noise Level

2 Noise Level
3 Noise Level
4 Noise Level
Measuring Channel
OUTPUT L/MONO
OUTPUT R
Measuring Channel
OUTPUT L/MONO
OUTPUT R
PHONES L
PHONES R
Measuring Channel
OUTPUT L/MONO
OUTPUT R
PHONES L
PHONES R
Reference level
1.5 - 5.5[dBm]
1.5 - 5.5[dBm]
Reference level
Less than 0.0100[%]
Less than 0.0100[%]
Less than 0.1500[%]
Less than 0.1500[%]
Reference level
Less than -90.00[dBm]
Less than -90.00[dBm]
Less than -80.00[dBm]
Less than -80.00[dBm]
Note
Signal to INPUT L/MONO
Signal to INPUT R
Note
Signal to INPUT L/MONO
Signal to INPUT R
Signal to INPUT L/MONO
Signal to INPUT R
Note
33 OHM load
33 OHM load