Korg Pa50 Service Manual

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Turn Pa50 on.
5-1 Demo Song Start
Press [STYLE PLAY]SW and [SONG PLAY]SW simultaneously.
Internal Demo Song start automatically.
5-2 Check followings
*Move Master VR from 0 to 10 to check speaker volume varies smoothly.
*Check if no VR Moving Noise (Cycle Noise)
* Confirm if the body does not vibrate
.
NOTE: Please shake (or hit) body lightly in order to check if there are any internal soldering
problems.
5-3 Connect Headphone to Pa50 and have it to check if Headphone output works correctly.
5-4 Keep on connecting Headphone to Pa50 and check if LINE OUT output works correctly
by Monitor Amplifiers.
Disconnect Headphone
Stop Demo Performance: Press [SART/STOP]
Press [MODE/PRGRAM] in order to escape from DEMO MODE
5-5 On hitting key strongly, check if sound comes with normal velocity value.
(All keys should be inspected.)
5-6 On hitting key weakly, check if sound comes with normal velocity value.
(All keys should be inspected.)
5-7 Check if Damper function works correctly by equipment connected to Damper Jack.
Press [MODE/STYLE PLAY] key

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