Korg C-15: Difference between revisions

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

VisualWikitext

Revision as of 03:38, 25 March 2023

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

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

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

Digikey BOM: https://www.digikey.com/

References

@@ Line 135: / Line 135: @@
 |Radial
 |18mm
-|36nn
+|36mm
 |8mm
 |85 °C
@@ Line 142: / Line 142: @@
 |RE2
 |}
+=== Logic Board ===
+KLM-1546A YG-H2
+{| class="wikitable"
+|+
+!RefDes
+!Qty
+!Capacitance
+!Voltage
+![https://caps.wiki/wiki/Part_Footprints Mount]
+!Diameter/Size
+!Height
+!Lead Spacing
+!Temp
+![https://caps.wiki/wiki/Capacitor_Types 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==
 ===Basic PCB Name===