Korg Pa50 Service Manual

QA Full Inspection
Pa-50
15
Max Level Inspection
Signal is outputted from Each Inspected Terminal.
MAKE Master Volume level MAX and then
CHECK if output level is within Range below.
CHECK if distortion of wave of Oscilloscope is less than 0.5%. Please refer to wave figure below.
Setting of OSCILLOSCOPE: DC
After confirmation, press [F3]
1/4 : INSERT DAMMY PLUG INTO [OUTPUT RIGHT]
OUTPUT : [OUTPUT L/MONO] : 1[KHz], 10.0[Vp-p] - 11.5[Vp-p]
2/4 : INSERT DAMMY PLUG INTO [OUTPUT L/MONO]
OUTPUT : [OUTPUT RIGHT] : 1[KHz], 10.0[Vp-p] - 11.5[Vp-p]
3/4 : SHIELD CABLE with 33ohm impedance.
OUTPUT : [PHONES L] : 440[Hz], 1.80[Vp-p] - 3.20[Vp-p]
4/4 : SHIELD CABLE with 33ohm impedance
OUTPUT : [PHONES R] : 880[Hz], 1.80[Vp-p] - 3.20[Vp-p]
Caution
During this inspection, Pa50 may hang-up very rarely. In this case, shut off power at once and load the
TEST MODE again and make same inspection.
Example without distortion Example with distortion
Oscilloscope setting : DC

Korg Pa50 Specifications

General

Type	Arranger Keyboard
Polyphony	62 voices
User Styles	48
MIDI	In, Out, Thru
Keyboard	61 keys
Timbres	16
ROM	32 MB
Performances	160
Effects	4 stereo digital multi-effect systems
Sequencer	16-track
Song Play	Yes
Display	Backlit LCD
Outputs	L/Mono, R, headphones
Inputs	Damper Pedal, Assignable Pedal/Switch
Floppy Disk	3.5"
Storage	Internal and floppy disk
Connections	Sustain pedal, assignable pedal
Amplification	2 x 15 Watts
Speakers	2 x 10 cm
Sound Engine	HI (Hyper Integrated) Synthesis System