Korg C-15: Difference between revisions

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|860020373011
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|[https://www.digikey.com/en/products/detail/w%C3%BCrth-elektronik/860020373011/5727035 DigiKey] Mouser LCSC
|[https://www.digikey.com/en/products/detail/w%C3%BCrth-elektronik/860020373011/5727035 DigiKey] [https://www.mouser.com/ProductDetail/Wurth-Elektronik/860020373011?qs=0KOYDY2FL29%2Fv5JUGXWgRw%3D%3D Mouser] LCSC
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|25PK4700MEFC16X25 / ESK478M025AM2AA
|[https://www.digikey.com/en/products/detail/rubycon/25PK4700MEFC16X25/3564433 DigiKey] Mouser LCSC
|[https://www.digikey.com/en/products/detail/rubycon/25PK4700MEFC16X25/3564433 DigiKey] [https://www.mouser.com/ProductDetail/KEMET/ESK478M025AM2AA?qs=ic1jaF55hEmtYVyiLRpGeA%3D%3D Mouser] LCSC
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===Logic Board===
===Logic Board===
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{| class="wikitable sortable"

Revision as of 01:41, 4 April 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 36mm 8mm 85 °C Aluminum Electrolytic ELNA RE2

Logic Board

KLM-1546A YG-H2

RefDes Qty Capacitance Voltage Mount Diameter/Size Height Lead Spacing Temp Type Brand Series
C19 1 470 µF 10 V Radial 8mm 11mm 5mm 85 °C Aluminum Electrolytic ELNA RE2
C71 1 1000 µF 16 V Radial 10mm 20mm 5mm 85 °C Aluminum Electrolytic ELNA RE2

Replacement Parts

Analog Board

Capacitors
RefDes Qty Compatible Part Number Order Links
C3, C17 2 860020672006 Digikey Mouser LCSC
C9, C23 2 860020374012 DigiKey Mouser LCSC
C25 1 860020672007 DigiKey Mouser LCSC
C26 1 860020472006 DigiKey Mouser LCSC
C27, C34 2 UVP1HR47MDD1TD DigiKey Mouser LCSC
C47, C48 2 860020373011 DigiKey Mouser LCSC
C49, C50 2 UVR1H682MRD6 DigiKey Mouser LCSC
C55 1 25PK4700MEFC16X25 / ESK478M025AM2AA DigiKey Mouser LCSC

Logic Board

Capacitors
RefDes Qty Compatible Part Number Order Links
C19 1 Digikey Mouser LCSC
C71 1 DigiKey Mouser LCSC


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