Korg C-15: Difference between revisions

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==Disassembly Notes==
==Disassembly Notes==
[[File:Korg C-15 screw diagram.png|thumb|Remove the screws shown here in red.]]
[[File:Korg C-15 screw diagram.png|thumb|Remove the screws shown here in red.]]
The '''upper housing''' is attached with a hing to the rear, and '''four screws''' along each side (see diagram): the front-most and back-most outer screws at the front legs' supporting panels, and two more screws at the middle and back of each side. Grip the front corners on both sides, lift and allow the housing to rotate up like a car hood.  
The '''upper housing''' is attached with a hinge to the rear, and '''four screws''' along each side (see diagram): the front-most and back-most outer screws at the front legs' supporting panels, and two more screws at the middle and back of each side. Grip the front corners on both sides, lift and allow the housing to rotate up like a car hood.  
==Original Parts==
==Original Parts==
===Basic PCB Name===
===Analog Board===
''Note model numbers and board revisions here''
KLM-1568B YG-M2
{| class="wikitable sortable"
{| class="wikitable sortable"
|+Capacitor [[Capacitor Specifications|Specifications]] and [[Part Footprints|Footprint]] Information
|+Capacitor [[Capacitor Specifications|Specifications]] and [[Part Footprints|Footprint]] Information
Line 38: Line 38:
!Series
!Series
|-
|-
|
|C3, C17
|
|2
|0 µF
|2.2 µF
|
|50 V
|
|Radial
|
|5mm
|
|10mm
|
|5mm
|0 °C
|85 °C
|
|Aluminum Electrolytic
|
|ELNA
|
|RE2
|-
|C9, C23
|2
|470 µF
|16 V
|Radial
|10mm
|14mm
|5mm
|85 °C
|Aluminum Electrolytic
|ELNA
|RE2
|-
|C25
|1
|3.3 µF
|50 V
|Radial
|5mm
|10mm
|5mm
|85 °C
|Aluminum Electrolytic
|ELNA
|RE2
|-
|C26
|1
|47 µF
|16 V
|Radial
|5mm
|10mm
|5mm
|85 °C
|Aluminum Electrolytic
|ELNA
|RE2
|-
|C27, C34
|2
|0.47 µF
|50 V
|Radial
|5mm
|10mm
|5mm
|85 °C
|Bipolar, Aluminum Electrolytic
|ELNA
|CE-BP
|-
|C47, C48
|2
|330 µF
|16 V
|Radial
|8mm
|11mm
|5mm
|85 °C
|Aluminum Electrolytic
|ELNA
|RE2
|-
|C49, C50
|2
|6800 µF
|50 V
|Radial
|26mm
|46mm
|10mm
|85 °C
|"For Audio", Large Aluminum Electrolytic
|ELNA
|CEW
|-
|C55
|1
|4700 µF
|25 V
|Radial
|18mm
|36nn
|8mm
|85 °C
|Aluminum Electrolytic
|ELNA
|RE2
|}
|}
==Replacement Parts==
==Replacement Parts==

Revision as of 03:22, 25 March 2023

Korg Concert C-15
Preliminary Information
Release Year 1992
Leak Risk Medium
Batteries None
Mounting Technology Through Hole, SMD
Capacitor Types Aluminum Electrolytic, Tantalum, Ceramic, Polymer
Destructive Entry No

The Korg Concert C-15 is a digital piano and midi keyboard from around 1992. It has 88 full size keys, two pedals, built in stereo speakers, and a plastic music stand. The C-15 is closely related to the C-25, and shares many elements with the C-35, C-45, and C-55; much of the repair procedure applies to all 5 models, but this article was written with a C-15 for physical reference.

Known Issues

Crackling, Loss of sound

Causes

  • Description of cause

Solutions

  • Solution to the problem

Disassembly Notes

Remove the screws shown here in red.

The upper housing is attached with a hinge to the rear, and four screws along each side (see diagram): the front-most and back-most outer screws at the front legs' supporting panels, and two more screws at the middle and back of each side. Grip the front corners on both sides, lift and allow the housing to rotate up like a car hood.

Original Parts

Analog Board

KLM-1568B YG-M2

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter/Size Height Lead Spacing Temp Type Brand Series
C3, C17 2 2.2 µF 50 V Radial 5mm 10mm 5mm 85 °C Aluminum Electrolytic ELNA RE2
C9, C23 2 470 µF 16 V Radial 10mm 14mm 5mm 85 °C Aluminum Electrolytic ELNA RE2
C25 1 3.3 µF 50 V Radial 5mm 10mm 5mm 85 °C Aluminum Electrolytic ELNA RE2
C26 1 47 µF 16 V Radial 5mm 10mm 5mm 85 °C Aluminum Electrolytic ELNA RE2
C27, C34 2 0.47 µF 50 V Radial 5mm 10mm 5mm 85 °C Bipolar, Aluminum Electrolytic ELNA CE-BP
C47, C48 2 330 µF 16 V Radial 8mm 11mm 5mm 85 °C Aluminum Electrolytic ELNA RE2
C49, C50 2 6800 µF 50 V Radial 26mm 46mm 10mm 85 °C "For Audio", Large Aluminum Electrolytic ELNA CEW
C55 1 4700 µF 25 V Radial 18mm 36nn 8mm 85 °C Aluminum Electrolytic ELNA RE2

Replacement Parts

Basic PCB Name

Capacitors
RefDes Qty Compatible Part Number Order Links
Digikey

If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.

Kits

Related Links

References

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