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KORG C-520LC/DR/CH SERVICE MANUAL TABLE OF CONTENTS ASSEMBLY SKETCH (HOOKUP) 2 BLOCK DIAGRAM3 SCHEMATIC DIAGRAM4-13 TEST MODE14-16 PARTS LIST17-20 Issued Jun. 8, 2006 Ver.1

KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram

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Page 1: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram

KORG C-520LC/DR/CHSERVICE MANUAL

TABLE OF CONTENTS

ASSEMBLY SKETCH (HOOKUP) :2

BLOCK DIAGRAM:3

SCHEMATIC DIAGRAM:4-13

TEST MODE:14-16

PARTS LIST:17-20

Issued Jun. 8, 2006Ver.1

Page 2: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram

Dimensions * "H" is a size in the state where the "score holder" was toppled. C-520LC C-520DRW[mm] D[mm] H[mm] Weight[kg] No PartCode PartName QTY No PartCode PartName QTY

Instrument Only 1372 447 229 37With Stand 1396 462 869 53 1 500645055182 X-5350 ROOF BOARD D40050-1 1 1 500645055184 X-535D ROOF BOARD KOC-D40050-2 1

2 500641041637 X-0390 SCOREHOLDER HINGE 2 2 500641041637 X-0390 SCOREHOLDER HINGE 23 500645055156 X5320 SCOREHOLDER KOC-D40047-1 1 3 500645055157 X532D SCOREHOLDER KOC-D40047-2 14 500645055193 X-5350 MUSIC STOPPER D30308-1 1 4 500645055181 X-535D MUSIC STOPPER D30308-2 1

500646099902 X-4310 CLIP ASSY KOC-H40216 2 500646099902 X-4310 CLIP ASSY KOC-H40216 25 500645055153 X5320 GRILL KOC-D40042-1 1 5 500645055154 X532D GRILL KOC-D40042-2 1

6 500645055159 X5320 KEYCOVER KOC-D40044-1 1 6 500645055160 X532D KEYCOVER KOC-D40044-2 17 500641041977 X-5320 KC FRONT COVER KOC-C30709 1 7 500641041977 X-5320 KC FRONT COVER KOC-C30709 18 500641042010 X-5350 CONTROLPANEL KOC-C30715 1 8 500641042010 X-5350 CONTROLPANEL KOC-C30715 19 500646099936 X-5320 BUTTON A-1-GR H40231-1-GR 5 9 500646099936 X-5320 BUTTON A-1-GR H40231-1-GR 5

10 500646099935 X-5320 BUTTON A-2-GR H40231-2-GR 4 10 500646099935 X-5320 BUTTON A-2-GR H40231-2-GR 4

11 500646099953 X-5320 BUTTON B-2-GR H40232-2-GR 1 11 500646099953 X-5320 BUTTON B-2-GR H40232-2-GR 112 500646099937 X-5320 BUTTON B-1-GR H40232-1-GR 9 12 500646099937 X-5320 BUTTON B-1-GR H40232-1-GR 913 500646099934 X-5320 BUTTON A-3-GR H40231-3-GR 3 13 500646099934 X-5320 BUTTON A-3-GR H40231-3-GR 314 500646099932 X-5320 VR KNOB KOC-E40661 1 14 500646099932 X-5320 VR KNOB KOC-E40661 115 500630042504 X-5350 LCD WINDOW KOC-E40687 1 15 500630042504 X-5350 LCD WINDOW KOC-E40687 1

16 500645055141 X5320 SIDEBOARD L KOC-D40048-1 1 16 500645055142 X532D SIDEBOARD L KOC-D40048-3 1500645055144 X5320 SIDEBOARD R KOC-D40048-2 1 500645055145 X532D SIDEBOARD R KOC-D40048-4 1

17 500646099940 X-5320 GUIDE L KOC-E30233-11 1 17 500646099940 X-5320 GUIDE L KOC-E30233-11 1500646099941 X-5320 GUIDE R KOC-E30233-12 1 500646099941 X-5320 GUIDE R KOC-E30233-12 1

18 500646099942 X-5320 KEYBLOCK L KOC-E20190-5 1 18 500646099942 X-5320 KEYBLOCK L KOC-E20190-5 1500646099943 X-5320 KEYBLOCK R KOC-E20191-5 1 500646099943 X-5320 KEYBLOCK R KOC-E20191-5 1

19 500645055191 X-5350 FRONT BOARD D40051-1 1 19 500645055186 X-535D FRONT BOARD D40051-2 120 500645055187 X-5350 REAR BOARD KOC-D40052 1 20 500645055187 X-5350 REAR BOARD KOC-D40052 121 500420007300 RH-3 1 21 500420007300 RH-3 122 X5320 ST SIDEBOARD L D30307-1 1 22 X532D ST SIDEBOARD L D30307-3 1

X5320 ST SIDEBOARD R D30307-2 1 X532D ST SIDEBOARD R D30307-4 1

23 X-5350 ST ANGLE L KOC-C30720-1 1 23 X-5350 ST ANGLE L KOC-C30720-1 1X-5350 ST ANGLE R KOC-C30720-2 1 X-5350 ST ANGLE R KOC-C30720-2 1

24 500641041987 X4300 JOINT ANGLE KOC-C41395 2 24 500641041987 X4300 JOINT ANGLE KOC-C41395 225 500645055194 X-5350 ST FRONT LEG D40053-1 2 25 500645055189 X-535D ST FRONT LEG D40053-2 226 500646099926 X-5350 ST BASE L KOC-E30415-5 1 26 500646099954 X-535D ST BASE L KOC-E30415-7 1

500646099929 X-5350 ST BASE R KOC-E30415-6 1 500646099955 X-535D ST BASE R KOC-E30415-8 1

27 500645055173 X5320 PEDAL CASING D30306-1 1 27 500645055174 X532D PEDAL CASING D30306-2 128 500641041970 PEDAL UNIT HPU-L3C(SILVER PDL) 1 28 500641041970 PEDAL UNIT HPU-L3C(SILVER PDL) 129 500645055170 X5320 ST REARBOARD D40046-1 1 29 500645055171 X532D ST REARBOARD D40046-2 1

C-520CHNo PartCode PartName QTY

1 500645055183 X-535C ROOF BOARD KOC-D40050-3 12 500641041637 X-0390 SCOREHOLDER HINGE 23 500645055158 X532C SCOREHOLDER KOC-D40047-3 14 500645055180 X-535C MUSIC STOPPER D30308-3 1

500646099902 X-4310 CLIP ASSY KOC-H40216 25 500645055155 X532C GRILL KOC-D40042-3 1

6 500645055161 X532C KEYCOVER KOC-D40044-3 17 500641041977 X-5320 KC FRONT COVER KOC-C30709 18 500641042010 X-5350 CONTROLPANEL KOC-C30715 19 500646099936 X-5320 BUTTON A-1-GR H40231-1-GR 5

10 500646099935 X-5320 BUTTON A-2-GR H40231-2-GR 4

11 500646099953 X-5320 BUTTON B-2-GR H40232-2-GR 112 500646099937 X-5320 BUTTON B-1-GR H40232-1-GR 913 500646099934 X-5320 BUTTON A-3-GR H40231-3-GR 314 500646099932 X-5320 VR KNOB KOC-E40661 115 500630042504 X-5350 LCD WINDOW KOC-E40687 1

16 500645055143 X532C SIDEBOARD L KOC-D40048-5 1500645055146 X532C SIDEBOARD R KOC-D40048-6 1

17 500646099940 X-5320 GUIDE L KOC-E30233-11 1500646099941 X-5320 GUIDE R KOC-E30233-12 1

18 500646099942 X-5320 KEYBLOCK L KOC-E20190-5 1500646099943 X-5320 KEYBLOCK R KOC-E20191-5 1

19 500645055185 X-535C FRONT BOARD D40051-3 120 500645055187 X-5350 REAR BOARD KOC-D40052 121 500420007300 RH-3 122 X532C ST SIDEBOARD L D30307-5 1

X532C ST SIDEBOARD R D30307-6 1

23 X-5350 ST ANGLE L KOC-C30720-1 1X-5350 ST ANGLE R KOC-C30720-2 1

24 500641041987 X4300 JOINT ANGLE KOC-C41395 225 500645055188 X-535C ST FRONT LEG D40053-3 226 X-535D ST BASE L KOC-E30415-7 1

X-535D ST BASE R KOC-E30415-8 1

27 500645055175 X532C PEDAL CASING D30306-3 128 500641041970 PEDAL UNIT HPU-L3C(SILVER PDL) 129 500645055172 X532C ST REARBOARD D40046-3 1

1 2 3 4

5

6

7

810

9

1112

1310

16

17

18

19

14

20

21

22

23

24

26 27 28

29

25

10

9

9

9

9

1212

12

12

15

Page 3: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram
Page 4: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram
Page 5: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram
Page 6: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram
Page 7: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram
Page 8: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram
Page 9: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram
Page 10: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram
Page 11: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram
Page 12: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram
Page 13: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram
Page 14: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram

C-520 TEST MODE

How to enter the TEST MODE, Confirmation of the click noise when power on

Pushing [PERFORMANCE] and [SPLIT] then turn power on. Confirm that big click noise is not heard when power on.After "Self Test Select Mode" is displayed in the LCD, select one mode from following 3modes.

Push [PIANO 1]; Internal Inspection + External Inspection (Connect MIDI IN and MIDI OUT, loop connection)Push [PIANO 2]; External Inspection (Inspection starts from LCD inspection)Push [E.PIANO 1] Internal Inspection + External Inspection (without MIDILOOP and USB inspection)

Operation in the TEST MODE (without LED/SW inspection)

Push [+/YES] step up within the itemPush [-/NO] step down within the itemPush [EXIT] proceed to the next item

Internal Inspection about PCB and internal system

Connect a cable or a jack to the headphone jack surely.

ITEM STEP1 1 NANDFLASH - Partition.0

2 NANDFLASH - Partition.12 1 MIDILOOP (When not connected MIDI IN and OUT, the judgment is NG.)3 1 USB4 1 Headphone Insert (When no cable or no jack is connected, the judgment is NG.)5 1 TGL Resister

2 TGL DRAM6 1 PCMROM BANK.0

2 PCMROM BANK.13 PCMROM BANK.24 PCMROM BANK.3

When some error is detected, the meaning of the error is displayed in the LCD.When no error is detected, C-520 proceeds to the next external inspection.

When you skip the error and proceed to next, push [+/YES] .

External Inspection, about the operation system of panel.

1 LCD Inspection

Confirm the unevenness of the contrast by displaying of all dots and not displaying of all dots.

1 display: [LCD]2 displaying of all dots3 not displaying all dots

2 LED/SW InspectionConfirmation of the operation and the display of the switches and LEDConfirm that only one LED in the inspection lights, and the brightness is even, no strange feeling,push a switch then, the inspection proceeds to the next one by one.

LED lights switch should be push after confirmation1 [+/YES]2 [PERFORM]3 [PIANO 1]4 [PIANO 2]5 [E.PIANO 1]6 [E.PIANO 2]7 [HARPSI/GUITAR]8 [SPLIT]9 [VIBES]

10 [ORGAN 1][VIBES][ORGAN 1]

[E.PIANO 1][E.PIANO 2][HARPSI/GUITAR][SPLIT]

All LEDs[PERFORM][PIANO 1][PIANO 2]

Page 15: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram

11 [ORGAN 2]12 [STRINGS/PAD]13 [CHOIR]1415161718192021222324 All LEDs [BANK]25 All LEDs [▲](up)26 All LEDs [▼](down)27 All LEDs [+/YES]28 All LEDs [EDIT]29 All LEDs [TEMPO+]30 All LEDs [SONG SEL]31 All LEDs [-/NO]32 All LEDs [EXIT]33 All LEDs [TEMPO-]34 All LEDs [STOP]

3 Pedal Inspection

Step on the left, center, and right pedal in the order, when value of the A/D is normal,the inspection proceeds to next automatically.When all the 3 pedals are normal, C-520 proceeds to next inspection.

1 left pedal2 center pedal3 right pedal

4 Measurement of the maximum level

The sine wave of 1000Hz is output from the channel which is measured.When R is not connected, the mixed signal (L+R) is output from L.When measurering, connect cables to L and R.

When measuring of L, 660Hz signal is output from R. When measuring of R, 330Hz is output from L.

Push [METRONOME], then the inspection proceeds to the next step.After Headphone2R, the inspection proceeds to the measurement of the noise.When you do not measure, push {METRONOME] six times and proceed.

1 Lineout L 1.5 ~ 5.5 [dBu]2 Lineout R 1.5 ~ 5.5 [dBu]3 Headphone 1 L 1.5 ~ 5.5 [dBu] 33 ohm load is needed.4 Headphone 1 R 1.5 ~ 5.5 [dBu] 33 ohm load is needed.5 Headphone 2 L 1.5 ~ 5.5 [dBu] 33 ohm load is needed.6 Headphone 2 R 1.5 ~ 5.5 [dBu] 33 ohm load is needed.

5 Measurement of noise level

When measuring, connect cables to both L and R.

Push [METRONOME], then inspection proceeds to the next step.After Headphone "R, next is Measurement of the line input.When you do not measure, push {METRONOME] 6times and proceed the inspection.

1 Lineout L less than -88.0 [dBu]2 Lineout R less than -88.0 [dBu]3 Headphone 1 L less than -85.0 [dBu]Needed 33 ohm load4 Headphone 1 R less than -85.0 [dBu]Needed 33 ohm load5 Headphone 2 L less than -85.0 [dBu]Needed 33 ohm load6 Headphone 2 R less than -85.0 [dBu]Needed 33 ohm load

6 Measurement of the LINE INPUTS

When measuring, connect cables to both L and R.Input -10[dBu] signal only to the input which you measure.

Push [METRONOME] to proceed to the next step.After Lineout R, next is the confirmation of speaker sound.When you do not measure, push [METRONOME] twice and proceed.

[DEMO][RECORD][PLAY/PAUSE]

[DEMO][RECORD][PLAY/PAUSE]

[REVERB][CHORUS][METRO][PART 1][PART 2][TRANSPOSDE][BRILLIANCE]

[PART 1][PART 2][TRANSPOSDE][BRILLIANCE]

[CHOIR][REVERB][CHORUS][METRO]

[ORGAN 2][STRINGS/PAD]

Page 16: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram

1 Lineout L -7.5 ~ -12.5 [dBu]2 Lineout R -7.5 ~ -12.5 [dBu]

7 Confirmation of the speaker sound

Input the decided signal only to the input which you measure.After confirmation of the sound from the speaker, push {METRONOME} and proceed to the next item.

1 Left speaker low Input the sine wave of -10[dB] 128[Hz] to the Linein L2 Right speaker low Input the sine wave of -10[dB] 128[Hz] to the Linein R3 Left speaker high Input the sine wave of -10[dB] 12500[Hz] to the Linein L4 Right speaker high Input the sine wave of -10[dB] 12500[Hz] to the Linein R

8 Inspection of the keyboard

Play each key at the middle strength from the C8 (right end) to the A0 ( left end).In the LCD, the key which you should play next is displayed.After the keyboard inspection ended normally, C-520 restarts in the normal mode.

9 Confirmation of the working of the product

After the restart of the normal mode, confirm the demo song playing and working of the productfor example, sound volume and etc.

Page 17: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram

KORG C-520(LC/DR/CH) Parts List - QTY -

Part No. Category Parts Name Note LC DR CH500314010250 LED SLZ-190B-03-T2 KLM-2687/88 1 1 1500404001150 FERRITE BEAD MMZ1608Y102BT KLM-2687/88 4 4 4500454012708 PHONE JACK HJH-9-0265M(STEREO) KLM-2687/88 2 2 2500471102030 CONNECTOR SJ20-03WX KLM-2687/88 1 1 1500472092040 CONNECTOR SJ20-04WM KLM-2687/88 1 1 1500304050140 DIGITAL TR DTC114EKA T146 KLM-2667 1 1 1500314001400 DIODE RLS-73 TE-11 KLM-2667 2 2 2500320012223 ASIC MB87F1710PFV-G-BND KLM-2667 1 1 1500320012321 ASIC MBCG46183-205PF KLM-2667 1 1 1500320020211 MPU MCF5307AI66B KLM-2667 1 1 1500320040118 MASK ROM MX23L12811MC-10G X5350-01LX KLM-2667 1 1 1500320040119 MASK ROM MX23L12811MC-10G X5350-01HX KLM-2667 1 1 1500320040120 MASK ROM MX23L12811MC-10G X5350-23LX KLM-2667 1 1 1500320040121 MASK ROM MX23L12811MC-10G X5350-23HX KLM-2667 1 1 1500320040122 FLASH(NOR) MX29LV400CTTC-70G X5350A KLM-2667 1 1 1500320052002 FLASH(NAND) HY27US08281A-TPCB KLM-2667 1 1 1500324003077 Logic IC TC74VHC21FT(EL) KLM-2667 1 1 1500324006007 IC MSM5118165F-60J3R1 KLM-2667 1 1 1500324006012 SDRAM V54C365164VEI7(TP) KLM-2667 1 1 1500324007009 IC BA033FP-E2 KLM-2667 1 1 1500324009054 REGULATOR IC NJM78M05DL1A-TE1 KLM-2667 1 1 1500324021126 Logic IC SN74AHCT139PWR KLM-2667 1 1 1500324021160 IC NE5532DR KLM-2667 2 2 2500324021274 Logic IC SN74AHC374PWR KLM-2667 1 1 1500324021275 Logic IC SN74AHCT04PWR KLM-2667 1 1 1500324021276 Logic IC SN74AHCT244PWR KLM-2667 6 6 6500324021277 Logic IC SN74AHC08PWR KLM-2667 2 2 2500324021278 Logic IC SN74AHC16244DGGR KLM-2667 1 1 1500324021279 Logic IC SN74AHCT16244DGGR KLM-2667 2 2 2500324021280 Logic IC SN74AHCU04PWR KLM-2667 2 2 2500324021281 Logic IC SN74LVC4245APWR KLM-2667 2 2 2500324021282 Logic IC SN74AHC74PWR KLM-2667 1 1 1500324021284 Logic IC SN74AHC244PWR KLM-2667 2 2 2500324026012 RESET IC ADM811SARTZ-REEL7 KLM-2667 1 1 1500324053002 D/A Converter CS4398-CZZR KLM-2667 1 1 1500324053003 USB/1394 IC PDIUSBD12D.112 KLM-2667 1 1 1500335400250 CRYSTAL HC49US-SMD 6MHZ E21F5FZ800 KLM-2667 1 1 1500335400260 CRYSTAL HC49USSMD 24,576MHZ E14F5FZ800 KLM-2667 1 1 1500335400270 CRYSTAL HC49US-SMD 33MHZ E20F5FZ800 KLM-2667 1 1 1500402008800 COMMON MODE FILTERZJSR5101-223-01 KLM-2667 4 4 4500404000500 INDUCTOR BLM21BD102SN1D KLM-2667 1 1 1500404001150 FERRITE BEAD MMZ1608Y102BT KLM-2667 31 31 31500404001200 FERRITE BEAD MZA3216R102AT KLM-2667 2 2 2500471070501 CONNECTOR B5B-PH-K-S(LF)(SN) KLM-2667 1 1 1500471070801 CONNECTOR B8B-PH-K-S(LF)(SN) KLM-2667 1 1 1500472050501 CONNECTOR B5PS-VH(LF)(SN) KLM-2667 1 1 1500474042900 CONNECTOR MICS12 KLM-2667 1 1 1500474043000 CONNECTOR MICS16 KLM-2667 1 1 1500474043400 CONNECTOR MICS14 KLM-2667 1 1 1200057452667 PCB ASS'Y PCB ASS'Y KLM-2667 C-520 KLM-2667 (1) (1) (1)500320004716 CPU R5F21114FP(X5350/40) KLM-2737/2749 2 2 2500335400280 CERAMIC RESONATORCSTCE20M0V53-R0 KLM-2737/2749 2 2 2500404001150 FERRITE BEAD MMZ1608Y102BT KLM-2737/2749 5 5 5500404001200 FERRITE BEAD MZA3216R102AT KLM-2737/2749 9 9 9500471071601 CONNECTOR B16B-PH-K-S(LF)(SN) KLM-2737/2749 1 1 1500472071201 CONNECTOR S12B-PH-K-S(LF)(SN) KLM-2737/2749 2 2 2500474043000 CONNECTOR MICS16 KLM-2737/2749 1 1 1500474043300 CONNECTOR MICS10 KLM-2737/2749 2 2 2500474043400 CONNECTOR MICS14 KLM-2737/2749 1 1 1500474043500 CONNECTOR 254E-1-16GS-3 KLM-2737/2749 1 1 1200057452737 PCB ASS'Y PCB ASS'Y KLM-2737/49 C-520 KLM-2737/2749 (1) (1) (1)500304050140 DIGITAL TR DTC114EKA T146 KLM-2750 2 2 2500304050150 DIGITAL TR DTA114EKA T146 KLM-2750 1 1 1500304050310 TRANSISTOR 2SA1037AKT146R KLM-2750 2 2 2500304050500 TRANSISTOR 2SD2114KT146 KLM-2750 4 4 4500314001400 DIODE RLS-73 TE-11 KLM-2750 4 4 4500314010530 SCHOTTKY DIODE RSX301LA-30TR KLM-2750 1 1 1500314030500 SCHOTTKY DIODE RB160L-40TE25 KLM-2750 3 3 3500320006070 IC LM2676T-5.0/NOPB KLM-2750 1 1 1500320009057 REGULATOR IC NJM7805FA KLM-2750 1 1 1500320009109 REGULATOR IC NJM7812FA KLM-2750 1 1 1500320009110 REGULATOR IC NJM7912FA KLM-2750 1 1 1

Page 18: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram

Part No. Category Parts Name Note LC DR CH500324006016 IC LM2674MX-ADJ/NOPB KLM-2750 1 1 1500324009036 OPAMP NJM4556AM-TE1 KLM-2750 1 1 1500324009075 IC NJM2060M-TE1 KLM-2750 1 1 1500324021160 IC NE5532DR KLM-2750 3 3 3500324021283 Logic IC SN74AHCT04NSR KLM-2750 1 1 1500324054002 IC TC2001 KLM-2750 1 1 1500324054003 IC TP2050PBF KLM-2750 1 1 1500330003700 PHOTO COUPLER PS9117-F3-A KLM-2750 1 1 1500350002210 TRIMER VR RH0615C13J 1K KLM-2750 2 2 2500402006800 INDUCTOR WBR6H-3T-H5B-B20-KORG KLM-2750 4 4 4500402008600 INDUCTOR SMTDR0810-150M-KORG KLM-2750 4 4 4500402009000 INDUCTOR TC-470M-3A-5026-SN KLM-2750 1 1 1500402009100 INDUCTOR TC-221M-2A-5026-SN KLM-2750 1 1 1500404000500 INDUCTOR BLM21BD102SN1D KLM-2750 4 4 4500404001140 INDUCTOR BLM21PG221SN1D KLM-2750 1 1 1500404001150 FERRITE BEAD MMZ1608Y102BT KLM-2750 13 13 13500404001200 FERRITE BEAD MZA3216R102AT KLM-2750 1 1 1200057452750 PCB ASS'Y PCB ASS'Y KLM-2750 C-520 KLM-2750 (1) (1) (1)500304000050 TRANSISTOR 2SA1175-T-A KLM-2760/2761 8 8 8500314001300 DIODE 1SS-133 T-77 KLM-2760/2761 33 33 33500314010520 LED SLI-325URT31W KLM-2760/2761 22 22 22500320004108 Logic IC HD74HC138P-E KLM-2760/2761 2 2 2500362009059 VR RK14K1230A2X KLM-2760/2761 1 1 1500375016300 SW SKRGADD010 KLM-2760/2761 33 33 33500472070601 CONNECTOR S6B-PH-K-S(LF)(SN) KLM-2760/2761 1 1 1500472071201 CONNECTOR S12B-PH-K-S(LF)(SN) KLM-2760/2761 2 2 2200057452760 PCB ASS'Y PCB ASS'Y KLM-2760/61 C-520 KLM-2760/2761 (1) (1) (1)500301001600 TRANSISTOR 2SB1568 KLM-2785/86/87 1 1 1500304050220 DIGITAL TR DTC114ESA TP KLM-2785/86/87 1 1 1500304050240 DIGITAL TR DTA114ESATP KLM-2785/86/87 2 2 2500314001300 DIODE 1SS-133 T-77 KLM-2785/86/87 2 2 2500314003400 DIODE 1SR139-400 KLM-2785/86/87 1 1 1500403002100 RELAY FTR-H1AA024T-LF KLM-2785/86/87 1 1 1500471060301 CONNECTOR B3B-EH-A(LF)(SN) KLM-2785/86/87 1 1 1500472040201 CONNECTOR S2P-VH(LF)(SN) KLM-2785/86/87 2 2 2500472050301 CONNECTOR B3PS-VH(LF)(SN) KLM-2785/86/87 3 3 3500472060301 CONNECTOR S3B-EH(LF)(SN) KLM-2785/86/87 2 2 2200057452785 PCB ASS'Y PCB ASS'Y KLM-2785/86/87 C-520 KLM-2785/86/87 (1) (1) (1)500313006500 LCD AGBM00047M01(オスコネクタツキ) E. Parts 1 1 1500375015500 SW SDKLA10100 E. Parts 1 1 1500405015100 AC ADAPTER KA280 (DSA-60W-20 1 240609) E. Parts 1 1 1500410008004 LOUD SPEAKER BSQG13-16N TWEETER E. Parts 2 2 2500410008005 LOUD SPEAKER SP BOX ASSY (X-5350) E. Parts 2 2 2500420007300 KEYBOARD UNIT RH-3 E. Parts 1 1 1500430008492 CD-ROM DISC X-5350 CD-ROM KDR-008 E. Parts 1 1 1500475003650 HARNESS HNS-3650 E. Parts 2 2 2500475003651 HARNESS HNS-3651 E. Parts 1 1 1500475003652 HARNESS HNS-3652 E. Parts 1 1 1500475003653 HARNESS HNS-3653 E. Parts 1 1 1500475003654 HARNESS HNS-3654 E. Parts 1 1 1500475003655 HARNESS HNS-3655 E. Parts 1 1 1500475003658 HARNESS HNS-3658 E. Parts 1 1 1500475003659 HARNESS HNS-3659 E. Parts 1 1 1500475003660 HARNESS HNS-3660 E. Parts 2 2 2500475003661 HARNESS HNS-3661 E. Parts 1 1 1500475003664 HARNESS HNS-3664 E. Parts 1 1 1500475003665 HARNESS HNS-3665 E. Parts 1 1 1500475103657 HARNESS HNS-3657 (W/CORE) E. Parts 1 1 1500475103662 HARNESS HNS-3662 (W/CORE) E. Parts 1 1 1500525001300 FERRITE CORE NFT-25 (WITH CASE) E. Parts 1 1 1500600006508 AC CABLE LY100JPVCTFLY35LY37(JP) (100JP) (1) (1) (1)500600005400 AC CABLE EC-652-E03 (230GE/FR/WG) (1) (1) (1)500540028903 POWER PLUG/JACK CONVERTER SOCKET YL-212 (100JP) (1) (1) (1)500600005700 AC CABLE UC-953-J01 (120US/CN/EX) (1) (1) (1)500600005800 AC CABLE SC-111-J01 (240AU) (1) (1) (1)500600006507 AC CABLE LY230BSH05VVFBSLY13(UK) (230UK) (1) (1) (1)

500645055156 MECHANICAL X5320 SCOREHOLDER KOC-D40047-1 (LC) (1)500645055157 MECHANICAL X532D SCOREHOLDER KOC-D40047-2 (DR) (1)500645055158 MECHANICAL X532C SCOREHOLDER KOC-D40047-3 (CH) (1)500645055159 MECHANICAL X5320 KEYCOVER KOC-D40044-1 (LC) (1)500645055160 MECHANICAL X532D KEYCOVER KOC-D40044-2 (DR) (1)500645055161 MECHANICAL X532C KEYCOVER KOC-D40044-3 (CH) (1)500645055193 MECHANICAL X-5350 MUSIC STOPPER D30308-1 (LC) (1)

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Part No. Category Parts Name Note LC DR CH500645055181 MECHANICAL X-535D MUSIC STOPPER D30308-2 (DR) (1)500645055180 MECHANICAL X-535C MUSIC STOPPER D30308-3 (CH) (1)500646099902 MECHANICAL X-4310 CLIP ASSY KOC-H40216 2 2 2500641041977 MECHANICAL X-5320 KC FRONT COVER KOC-C30709 1 1 1500641041862 MECHANICAL X-3300 SHAFTKOC-C41345 1 1 1500641041539 MECHANICAL X-8320 KC REAR CHASSIS KOC-C20351-2 1 1 1500646099950 MECHANICAL X-5320 KC FRONT MASK KOC-E40526 1 1 1500500030600 MECHANICAL X-722/724 KC MASK KOC-F40848 1 1 1500646099930 MECHANICAL X-5320 KC CAP L KOC-E40660-1 1 1 1500646099931 MECHANICAL X-5320 KC CAP R KOC-E40660-2 1 1 1500646063600 MECHANICAL X-615/616 GEAR KOC-E40651 2 2 2500646099967 MECHANICAL X-5350 SLEEVE KOC-E40688 4 4 4500646073000 MECHANICAL X-8350 RACK KOC-E30232-2 2 2 2500500030100 MECHANICAL PS-302(PLASTIC WASHER) 2 2 2500540023100 MECHANICAL ROCKING SUPPORT SPACER NO.4190 2 2 2500540028904 MECHANICAL CIRCUIT BOARD SPACER SPLSN-6U 2 2 2500641042010 MECHANICAL X-5350 CONTROL PANEL KOC-C30715 1 1 1500646099934 MECHANICAL X-5320 BUTTON A-3-GR H40231-3-GR 3 3 3500646099935 MECHANICAL X-5320BUTTON A-2-GR H40231-2-GR 4 4 4500646099936 MECHANICAL X-5320 BUTTON A-1-GR H40231-1-GR 5 5 5500646099953 MECHANICAL X-5320 BUTTON B-2-GR H40232-2-GR 1 1 1500646099937 MECHANICAL X-5320 BUTTON B-1-GR H40232-1-GR 9 9 9500646099932 MECHANICAL X-5320 VR KNOB゙ KOC-E40661 1 1 1500641041983 MECHANICAL X-5320 SUPPORT ANGLE KOC-C41453 2 2 2500641041980 MECHANICAL X-5320 CP SUPPORT KOC-C41451 2 2 2500630042504 MECHANICAL X-5350 LCD WINDOW KOC-E40687 1 1 1500641042016 MECHANICAL X-5350 LCD ANGLE KOC-C30717 1 1 1500550022300 MECHANICAL X-4310 SLIT MASK KOC-F41204 2 2 2500550018600 MECHANICAL X-0360 KB FELT 3 KOC-F40950 1 1 1500630042506 MECHANICAL X-5350 SW SHEET L/R SET KOC-F30126 1 1 1500646099942 MECHANICAL X-5320 KEY BLOCK L KOC-E20190-5 1 1 1500646099943 MECHANICAL X-5320 KEY BLOCK R KOC-E20191-5 1 1 1500646099940 MECHANICAL X-5320 GUIDE L KOC-E30233-11 1 1 1500646099941 MECHANICAL X-5320 GUIDE R KOC-E30233-12 1 1 1500641042025 MECHANICAL X-5350 SHIELD CASE KOC-C30736 1 1 1500641042024 MECHANICAL X-5350 PCB CHASSIS S KOC-C30737 1 1 1500640084901 MECHANICAL EARTH SPRING (B) KOC-C40659 1 1 1500620025100 MECHANICAL X-224 POWER SW KNOB NO.3 E40264-3 1 1 1500641041981 MECHANICAL X-5320 ST JOINT KOC-C41452 2 2 2500641041585 MECHANICAL X-839A L ANGLE WHITE KOC-C41178-2 4 4 4500641041673 MECHANICAL X-0390 MUSIC STAND HINGE KOC-C41245 2 2 2500641042017 MECHANICAL X-5350 JACK CHASSIS KOC-C30718 1 1 1500641042018 MECHANICAL X-5350 PCB CHASSIS L KOC-C30719-1 1 1 1500641042019 MECHANICAL X-5350 PCB CHASSIS R KOC-C30719-2 1 1 1500641041925 MECHANICAL X-4310 KEY BLOCK CHASSIS KOC-C41403 2 2 2500550023400 MECHANICAL X5320 KC FELT 3 KOC-F40738-3 1 1 1500550023501 MECHANICAL X-5320 FELT L KOC-F41261 2 2 2500641042002 MECHANICAL X-5320 SP GRILL KOC-C41459 2 2 2500550023502 MECHANICAL X-5320 FELT S KOC-F41263 2 2 2500645055194 MECHANICAL X-5350 ST FRONT LEG D40053-1 (LC) (1)500645055189 MECHANICAL X-535D ST FRONT LEG D40053-2 (DR) (1)500645055188 MECHANICAL X-535C ST FRONT LEG D40053-3 (CH) (1)500645055170 MECHANICAL X5320 ST REARBOARD D40046-1 (LC) (1)500645055171 MECHANICAL X532D ST REARBOARD D40046-2 (DR) (1)500645055172 MECHANICAL X532C ST REARBOARD D40046-3 (CH) (1)500645055173 MECHANICAL X5320 PEDAL CASING D30306-1 (LC) (1)500645055174 MECHANICAL X532D PEDAL CASING D30306-2 (DR) (1)500645055175 MECHANICAL X532C PEDAL CASING D30306-3 (CH) (1)500641041970 MECHANICAL PEDAL UNIT HPU-L3C(SILVER PDL) 1 1 1500646099926 MECHANICAL X-5350 ST BASE L KOC-E30415-5 (LC) (1)500646099954 MECHANICAL X-535D ST BASE L KOC-E30415-7 (DR,CH) (1) (1)500646099929 MECHANICAL X-5350 ST BASE R KOC-E30415-6 (LC) (1)500646099955 MECHANICAL X-535D ST BASE R KOC-E30415-8 (DR,CH) (1) (1)500641041982 MECHANICAL X-5320 ST CHASSIS KOC-C30708 2 2 2500641041987 MECHANICAL X4300 JOINT ANGLE KOC-C41395 3 3 3500791020025 MECHANICAL T-NUT D-0044220 2 2 2500575020400 MECHANICAL CF-404ZE 2 2 2500641042009 MECHANICAL X-5320 ST METAL FITTING KOC-C41468 2 2 2500792001110 MECHANICAL X-5320/5350 SCREW SET1 (light brown cap) (LC) (1)

JOINT CONNECTOR BOLT M6X20 :4 (not supply)JOINT CONNECTOR CAP(light brown):4 (not supply)FE T 3BBC 4X14 :6 (not supply)CLIP CS-6 :2 (not supply)

Page 20: KORG C-520LC/DR/CH SERVICE MANUALdealers.korgusa.com/svcfiles/C520_SManual.pdf · korg c-520lc/dr/ch service manual table of contents assembly sketch (hookup) :2 block diagram

Part No. Category Parts Name Note LC DR CHKNOB BOLT KT-BZ M6X25 :2 (not supply)ADJUSTER M16X2.7X30(SG306273) :1 (not supply)

500792001111 MECHANICAL X-532D SCREW SET2 (dark brown cap) (DR,CH) (1) (1)JOINT CONNECTOR BOLT M6X20 :4 (not supply)JOINT CONNECTOR CAP(light brown):4 (not supply)FE T 3BBC 4X14 :6 (not supply)CLIP CS-6 :2 (not supply)KNOB BOLT KT-BZ M6X25 :2 (not supply)ADJUSTER M16X2.7X30(SG306273) :1 (not supply)