Roland C-80 Operating and maintenance manual

C-80 Dec. 1998
1
SERVICE NOTES
Copyright © 1998 by ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION.
17059946 Printed in Japan AA00 (DP) 1
SPECIFICATIONS
Keyboard
F scale 61 keys with Click
Maximum Polyphony
56 voices
Tones
8 tones
Effects
Reverb with Stereo Presence
Sympathetic Resonance
Connectors
Phones (Stereo)
Pedal
AC Inlet
MIDI (In / Out)
Audio Output (L (Mono) / R)
Speakers
16cm ×2, 5cm ×2
Rated Power Output
10W ×2
Power Supply
AC 117 V, AC 230 V or AC 240 V
Power Consumption
20W
Finish
Traditional Walnut
Dimensions (Including stand)
<With lid closed>
36-5/8 (W) ×33 (D) ×33-1/8 (H) inches
<With lid opened>
36-5/8 (W) ×33 (D) ×54-3/4 (H) inches
Weight (Including stand)
83 lbs 13 oz
Accessories
Owner's Manual (71129223)
Stand Screw set (71129856))
Power Cord
AC Cord Set 120V : 00894378
AC Cord Set 230V : 00894389
AC Cord Set 240VE : 00907001
AC Cord Set 240VA : 23495124
Cover (01674490)
TABLE OF CONTENTS Page
SPECIFICATIONS ...............................................................................................1
LOCATION OF CONTROLS ...............................................................................................2
EXPLODED VIEW PARTS LIST ...............................................................................................2
EXPLODED VIEW ...............................................................................................3
EXPLODED VIEW PARTS LIST ...............................................................................................3
WIRING DIAGRAM ...............................................................................................4
PARTS LIST ...............................................................................................4
TEST MODE ...............................................................................................7
DISASSEMBLING THE KEYBOARD ...............................................................................................9
ASSEMBLING THE STAND ...............................................................................................11
BLOCK DIAGRAM ...............................................................................................12
CIRCUIT BOARD (MAIN) ...............................................................................................12
CIRCUIT DIAGRAM (MAIN) ...............................................................................................13
CIRCUIT BOARD (ANALOG) ...............................................................................................14
CIRCUIT DIAGRAM (ANALOG) ...............................................................................................15
CIRCUIT BOARD (AMP) ...............................................................................................16
CIRCUIT DIAGRAM (AMP) ...............................................................................................16
CIRCUIT BOARD (PANEL, JACK, PHONES, SPEAKER) ...............................................................................................17
CIRCUIT DIAGRAM (PANEL, JACK, PHONES, SPEAKER) ...............................................................................................18
CIRCUIT BOARD (KEYBOARD) ...............................................................................................19
CIRCUIT DIAGRAM (KEYBOARD) ...............................................................................................20
C-80
DIGITAL HARPSICHORD Issued by RJA
本書の一部、もくしは全部を無断で複写・転載することを禁じます。
主な仕様
鍵盤
Fスケール61鍵(クリック付き)
最大同時発音数
56音
音色数
8音色
エフェクト
リバーブ(ステレオ・プレゼンス)
シンパセティック・レゾナンス
接続端子
ヘッドホン端子（ステレオ）
ペダル端子
ACインレット
MIDI端子（イン、アウト）
オーディオ出力（Ｌ（モノラル）／Ｒ）
スピーカー
16cm×2,5cm×2
定格出力
10W×2
電源
AC100V(50/60Hz)
消費電力
20W
外装仕上げ
トラディショナル・ウォールナット
外形寸法（専用スタンド込み）
<フタ閉め時>
929(W)×838(D)×841(H)mm
<フタ開け時>
929(W)×838(D)×1389(H)mm
重量
38kg
付属品
取扱説明書(71129223)
専用スタンド組立て用 スクリュー・セット(71129856)
電源コード(00894367)
専用カバー(01674490)
保証書(40232345)
別売品
ペダル・スイッチ（DP-6,DP-2）
ヘッドホン（RH-20/80/120）
専用椅子（CW-80）
目次
主な仕様
パネル配置図
分解図パーツリスト
分解図
分解図パーツリスト
ワイヤリング配線図
パーツリスト
テストモード
鍵盤分解手順
スタンド組立手順
ブロック図
基板図(MAIN)
回路図(MAIN)
基板図(ANALOG)
回路図(ANALOG)
基板図(AMP)
回路図(AMP)
基板図(PANEL,JACK,PHONES,SPEAKER)
回路図(PANEL,JACK,PHONES,SPEAKER)
基板図(KEYBOARD)
回路図(KEYBOARD)

C-80 Dec.1998
2
[Parts List]
No. Part No. Part Name
q# 71239501 TOP COVER ASSY
w# 71239423 LONG PROP ASSY
e# 71239478 MUSIC REST ASSY
r# 71239467 GRILLE BRD ASSY
t# 71239434 REAR PNL L ASSY
y# 71238490 TOP BOARD ASSY
u# 71239389 SIDEPANEL R ASSY
i# 71239490 END BLOCK R ASSY
o# 71238467 BLIND ASSY
!0 # 71239412 LOCK RAIL ASSY
!1 # 71129890 SK-861-M KEYBOARD ASSY
!2 # 71239489 END BLOCK L ASSY
!3 # 01670634 FRONT PANEL
!4 # 71238578 SIDEPANEL L ASSY
!5 # 71239445 REAR PNL S ASSY
!6 # 01671489 HINGE T-37
!7 12359103 FOOT SJ-5003
!8 # 01780156 COLLAR BUSHING TA-329 94V-0
!9 # 71239456 SHORT PROP ASSY
@0 # 71238489 TOP BAR ASSY
@1 # 01678912 PWB COVER
@2 22275312 SPEAKER COVER
@3 # 71232312 BAFFLE BRD ASSY
@4 01348434 TWEETER TW-5105C
@5 22415596 FULL-RANGE CF160138-01 6 OHM/20W
@6 # 01671678 HOLDER A
@7 # 71238478 CENTER BRD ASSY CB
@8 # 01674101 HOLDER B
@9 22205156 HOLDER A
#0 # 01670645 KEY FELT
#1 # 01671423 LOCK RAIL FELT
#2 # 01671690 TOP BOARD HOLDER A
#3 # 01671434 TOP BOARD FELT
#4 # 01672189 TOP BOARD HOLDER B
#5 22325182 MR HINGE ASSY
EXPLODED VIEW PARTS LIST LOCATION OF CONTROLS
[Parts List of Panel View]
No. Part No. Part Name
q22495576 A S-BUTTON LX BLK
w# 71129867 POWER SW ASSY
e22485188 M R-KNOB MF BLK
r# 01678578 POT DUST COVER
t13289178 VR RK14K12C 10KB L=4.5
y01232190 VR RK14K1230 10KB CC
u00348490 LED SLR-325VCT31
01340290 TACT SWITCH EVQ11A H=5.0
i00900178 D S-KEYTOP SD4H BLK
o00900145 D S-KEYTOP SD1H BLK
01340290 TACT SWITCH EVQ11A H=5.0
00348490 LED SLR-325VCT31
!0 00900189 D S-KEYTOP SX1H BLK
01340290 TACT SWITCH EVQ11A H=5.0
!1 00453223 LED SPACER LDS-70G
!2 00124601 LED LN282RPX
!3 13289185 VR RK11K1130 10KB LM1-15
!4 13429676 MIDI CONNECTOR YKF51-5048
!5 # 01671345 VR RK09K1110 CC
!6 13449283 6.5MM JACK HLJ7101-01-3010
!7 00125023 AC INLET PWI1818 (INL-7) 10A/250V 3P
!8 # 01672201 JACK BOARD HOLDER
a40011312 BINDING TAPTITE P 3×8 BZC
b40010245 BINDING MACHINE SCREW M3×6 BZC
c40012490 BINDING TAPTITE P 4×10 BZC
d40010334 BINDING MACHINE SCREW M4×8 BZC
40011745 SPRING NUT M4 ZC
Power
OffOn
Min Max Mellow Bright
BrillianceVolume Lute Celesta I OrganHarpsichord II
8 I 8 II 8 +8 8 +4 Pitch
Baroque ment Tempera-
Equal
Werckmeister
Kirnberger
Vallotti
Meantone
Just Major
Pythagorean
Just Minor
Off Max
Min
Reverb
Detune
Demo Octave Shift Pedal FunctionUpDown
Mode
THIS DEVICE COMPLIES WITH PART 15 OF THE
CAUSE UNDESIRED OPERATION.
FOLLOWING TWO CONDITIONS: (1)THIS DEVICE
RECEIVED, INCLUDING INTERFERENCE THAT MAY
FCC RULES. OPERATION IS SUBJECT TO THE
MAY NOT CAUSE HARMFUL INTERFERENCE, AND
(2)THIS DEVICE MUST ACCEPT ANY INTERFERENCE
THIS CLASS B DIGITAL APPARATUS MEETS ALL
SUR LE MATÉRIEL BROUILLEUR DU CANADA.
CAUSING EQUIPMENT REGULATIONS.
RESPECTE TOUTES LES EXIGENCES DU RÈGLEMENT
REQUIREMENTS OF THE CANADIAN INTERFERENCE-
CET APPAREIL NUMÉRIQUE DE LA CLASSE B
b
dca b
er o e
r
!2
u
yt
w
!0 !1i
!4 !5 !6 !7 !8
q
!3
[Screw]
No. Part No. Part Name
A40011612 OVAL WOOD SCREW 3.1×16 BZC
b40019478 FLAT TAPPING A 3×12 BZC
c40017634 TRUSS TAPPING A 4×40 BZC
d40125578 FLAT TAPPING A 4×30 BZC
e40012101 TRUSS TAPPING A 4×14 ZC
f40010334 BINDING MACHINE SCREW M4×8 BZC
g40010790 BINDING TAPPING A 3×16 BZC
h40010778 BINDING TAPPING A 3×8 BZC
i40012867 PAN MACHINE SCREW W/SW+PW M3×8 ZC
j40011056 BINDING TAPTITE B 3×6 ZC
k40012134 TRUSS TAPPING A 4×30 ZC
l40128512 PAN WASHER HEAD TAPTITE B 4×25 BZC
m40013023 PAN MACHINE SCREW W/SW+PW M4×25 BZC
/分解図パーツリスト/パネル配置図

C-80 Dec. 1998
3
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
EXPLODED VIEW
ab
!6
q
w
w
r
t
y
u
e
!5
!4
!3
io!0!2 !1
!9
@0
!8
!7
c
d
NOTE
First, detach qfrom the unit. Hinge !6 can be put out of joint
when qis opened more than 90º.
NOTE
First, detach @1 from @3 and pull the wiring of speakers out.
After detach @3 from the unit.
NOTE
You can remove all of the screw without taking the unit down
from the stand.
[Parts List]
No. Part No. Part Name
@8 # 01674101 HOLDER B
@9 22205156 HOLDER A
#6 # 01671401 REAR PANEL FELT
#7 # 01671701 END BLOCK HOLDER
#8 # 71239401 LEG BOARD ASSY
#9 # 71239390 LEG ASSY
$0 01566134 MAIN HOLDER
$1 # E 71129723 MAIN BOARD ASSY
$2 # 71129712 JACK BOARD ASSY
$3 # 01672201 JACK BOARD HOLDER
$4 01345078 SWTNG REG A1KW1AA262
$5 71236090 PS HOLDER ASSY
$6 # 71129745 PHONES ASSY
[Screw]
No. Part No. Part Name
e40012101 TRUSS TAPPING A 4×14 ZC
j40011056 BINDING TAPTITE B 3×6 ZC
k40012134 TRUSS TAPPING A 4×30 ZC
l40128512 PAN WASHER HEAD TAPTITE B 4×25 BZC
n40342101 PAN MACHINE SCREW W/SW+PW M5×45 BZC
o40342389 KNOB BOLT KT-B M5×35
EXPLODED VIEW PARTS LIST
ek
j
e
n
o
l
l
l
#7
$6
@9
#6
$5
#6
$4 $3 $2
$0
#7
@8
#8
#9
$1
l
l
#5
g
h
d
e
e
m
#3
#4
#2
#1
@9
#0
i
l
f
@8
#1
#2
#3
#4
r
@1
@2
@3
@4
@5
@6
@7
/分解図
分解するときはまず最初にqを本体から取り外してくだ
さい。qの角度を90゜以上に開くと!6のヒンジが外れま
す。
スピーカーとアンプボードが接続されているので、まず
@1を取り外し、中のコネクターを抜いてから@3を取り外
してください。
ネジは全てスタンドから本体をおろすことなしに取り外
すことができます。
/分解図パーツリスト

C-80 Dec.1998
4
Pw.SW
Phones
Panel Board
Main Board
Jack Board
Analog Board
Speaker
Board
Amp Board
Sw.REG
Board
CN12
CN13
CN4 CN5
CN7
CN8CN7
CN6
CN4
CN5
CN1
CN2
CN3
CN9
CN1 CN2 CN3
CN11
CN10
CN11
CN2
CN3
CN1
CN2
CN6
CN10 CN3
CN1
Coating Clip
Insulok Tie
Tape
Connector
Connector(Board-In)
1
2
3
4
56
78
9
10
11
13
14
15
12
7
8
Red
Black
Pink Black
Blue
Gray
Gray
Green
No. Part No. Part Name
1 : 01673223 WIRING SP/ZW
2 : 01673389 WIRING 4×120-P2.5-5480-5395-F
3 : 01673378 WIRING 4×90-P2.0-51065-51015-F
4 : 01673367 WIRING 4×420-P2.5-XH-5395-R
5 : 01673356 WIRING 8×430-P2.5-XH-5395-F
6 : 01673289 WIRING 4×190-P2.0-PH-51015-R
7 : 01673301 WIRING 5×640-P2.0-51065-51015-R
8 : 01673323 WIRING 8×430-P2.0-51065-51015-R
9 : 01673345 WIRING 10×410-P2.0-PH-51015-R
10 : 01673278 WIRING 8×210-P2.0-PH-SAN-F
11 : 01673312 WIRING 10×340-P2.0-51065-51015-F
12 : 01673290 WIRING 3×170-P2.0-51065-51015-F
13 : 01673234 WIRING W1
14 : 01673267 WIRING W2
15 : 01237078 FUJI CARD 16×250-A6.0BBR-P1.25-HBL10
WIRING DIAGRAM
NOTE : The part marked # are new (initial parts).
CASING Q'ty
# 71239501 TOP COVER ASSY Cabinet 1
# 71238489 TOP BAR ASSY Cabinet 1
# 71239423 LONG PROP ASSY Cabinet 1
# 71239456 SHORT PROP ASSY Cabinet 1
# 71239478 MUSIC REST ASSY Cabinet 1
# 71239467 GRILLE BRD ASSY Cabinet 1
# 71239434 REAR PNL L ASSY Cabinet 1
# 71239445 REAR PNL S ASSY Cabinet 1
# 71239389 SIDEPANEL R ASSY Cabinet 1
# 71238578 SIDEPANEL L ASSY Cabinet 1
# 71238490 TOP BOARD ASSY Cabinet 1
# 71239412 LOCK RAIL ASSY Cabinet 1
# 71239490 END BLOCK R ASSY Cabinet 1
# 71239489 END BLOCK L ASSY Cabinet 1
# 71238467 BLIND ASSY Cabinet 1
# 01670634 FRONT PANEL Panel 1
# 01671489 HINGE T-37 Hinge 2
22325182 MR HINGE ASSY Hinge 2
12359103 FOOT SJ-5003 Foot 2
# 01670645 KEY FELT Felt 1
# 01671423 LOCK RAIL FELT Felt 2
# 01671434 TOP BOARD FELT Felt 2
# 01671401 REAR PANEL FELT Felt 2
CHASSIS
# 71232312 BAFFLE BRD ASSY Cabinet 1
# 71238478 CENTER BRD ASSY Cabinet 1
# 01671678 HOLDER A Holder 12
# 01674101 HOLDER B Holder 2
# 01671690 TOP BOARD HOLDER A Holder 2
# 01672189 TOP BOARD HOLDER B Holder 3
22205156 HOLDER A Holder 4
# 01671701 END BLOCK HOLDER Holder 2
# 01672201 JACK BOARD HOLDER Holder 1
# 01671689 ANALOG HOLDER Holder 1
01566134 MAIN HOLDER Holder 1
71236090 PS HOLDER ASSY Holder 1
# 01678912 PWB COVER Cover 1
22275312 SPEAKER COVER Cover 2 + 2
# 01780156 COLLAR BUSHING TA-329 94V-0 Bushing 1
KNOB, BUTTON
22495576 A S-BUTTON LX BLK Keytop 1
00900178 D S-KEYTOP SD4H BLK Keytop 2
00900145 D S-KEYTOP SD1H BLK Keytop 1
00900189 D S-KEYTOP SX1H BLK Keytop 1
22485188 M R-KNOB MF BLK Knob 3
PARTS LIST
CONSIDERATIONS ON PARTS ORDERING
When ordering any parts listed in the parts list, please specify the following items in the order sheet.
QTY PART NUMBER DESCRIPTION MODEL NUMBER
10 22575241 Sharp key C-20/50
15 2247017300 Knob (orange) DAC-15D
Failure to completely fill the above items with correct number and description will result in delayed or even
undelivered replacement.
Ex.
SAFETY PRECAUTION:
The parts marked have safety-
related characteristics.
Use only listed parts for
replacement.
Amp : AMP BOARD
JB : JACK BOARD
Ph : PHONES ASSY
Anl : ANALOG BOARD
Sp : SPEAKER BOARD ASSY
Pnl : PANEL BOARD ASSY
/パーツリスト/ワイヤリング配線図
注 意 : ＃の付いた部品は新規部品です。
/ケース
/シャーシ
/つまみ、ボタン
安全上の注意：
が付いている部品は、安全
上特別な規格でつくられたも
のです。
交換の際は、指定された部品
番号以外の部品は使わないよ
うにして下さい。
パーツ発注に関するお願い
オーダーシートには、必ず下記の4項目は正確に記入して下さい。（例外は除く）
必要数 パーツナンバー 品名 使用機種
10 22575241 Sharp key C-20/50
15 2247017300 Knob (orange) DAC-15D
もし記入洩れ、誤記等が有る場合、必要部品が発送できなかったり、大幅な遅れの原因になりま
す。御協力をお願いします。
例）

C-80 Dec. 1998
5
SWITCH
# 71129867 POWER SW ASSY 1
NOTE : POWER SW ASSY includes the following parts.
01453245 PUSH SWITCHSDDLB1-B2-DmR TV-5 Switch 1
# 01673234 WIRING W1 Wiring 1
12339355 SWITCH COVER 721128-18 Cap 1
40016523 INSULOK TIE 100M/M T-18R Tie 2
01340290 TACT SWITCH EVQ11A H=5.0 Switch SW1-10 on Pnl 10
JACK, SOCKET
00125023 PWI1818 (INL-7) 10A/250V 3P AC INLET JK1 on JB 1
13429676 YKF51-5048 MIDI CONNECTOR JK5 on JB 1
13449283 HLJ7101-01-3010 6.5MM JACK JK2-4 on JB 3
13449169 YKB21-5078 6.5MM JACK JK6 on Ph 1
POWER SUPPLY UNIT
01345078 A1KW1AA262 Switching Regulator 1
SPEAKER, BUZZER
01348434 TWEETER TW-5105C Speaker 2
22415596 FULL-RANGE CF160138-01 6OHM/20W Speaker 2
KEYBOARD ASSY
# 71129890 SK-861-M KEYBOARD ASSY 1
PCB ASSY
# 71231589 AMP BOARD ASSY 1
NOTE : AMP BOARD ASSY includes the following parts.
# 01673378 WIRING 4×90-P2.0-51065-51015-F Wiring CN1 on Amp 1
01344890 HEATSINK Heatsink 1
# 01673367 WIRING 4×420-P2.5-XP-5395-R Wiring CN3 on Amp 1
01454001 IC HOLDER Holder 2
# 40340978 LABEL AMP BOARD ASSY NO. Label 1
40011067 BINDING TAPTITE B 3×8 ZC Tap Tite B 4
40012889 PAN MACHINE SCREW W/SW+PW M3 × 12 ZC Sems Screw 2
# 71129712 JACK BOARD ASSY 1
NOTE : JACK BOARD ASSY includes the following parts.
# 01673267 WIRING W2 Wiring CN4 on JB 1
# 01673278 WIRING 8×210-P2.0-PH-SAN-F Wiring CN8 on JB 1
# 01673289 WIRING 4×190-P2.0-PH-51015-R Wiring CN6 on JB 1
00908789 WIRING M Wiring JK1 on JB 1
12199584 GROUNDING TERMINAL M1698 Terminal on JB 2
# E 71129723 MAIN BOARD 1
# 71129745 PHONES ASSY 1
NOTE : PHONES ASSY includes the following parts.
# 01670656 PHONES HOLDER Holder 1
22150756 JACK NUT 2 Nut 1
# 71129834 PHONES BOARD ASSY Assy (Unit) 1
NOTE : PHONES BOARD ASSY includes the following parts.
# 01673301 WIRING 5×640-P2.0-51065-51015-R Wiring CN9 on Ph 1
23485590 WIRING W8 348-590 Wiring on Ph 1
# 71129734 ANALOG BOARD ASSY 1
NOTE : ANALOG BOARD ASSY includes the following parts.
# 01673345 WIRING 10×410-P2.0-PH-51015-R Wiring CN3 on Anl 1
# 01673356 WIRING 8×430-P2.5-XH-5395-F Wiring CN11 on Anl 1
# 71129767 SPEAKER BOARD ASSY 1
NOTE : SPEAKER BOARD ASSY includes the following parts.
# 01673389 WIRING 4×120-P2.5-5480-5395-F Wiring CN10 on Sp 1
# 71129823 PANEL BOARD ASSY 1
NOTE : PANEL BOARD ASSY includes the following parts.
# 01673323 WIRING 8×430-P2.0-51065-51015-R Wiring CN1 on Pnl 1
# 01673312 WIRING 10×340-P2.0-51065-51015-F Wiring CN2 on Pnl 1
# 01673290 WIRING 3×170-P2.0-51065-51015-F Wiring CN3 on Pnl 1
00453223 LED SPACER LDS-70G Spacer LED10-17 on Pnl 8
IC 15189188 M5238AL OPAMP IC1 on Amp, IC1 on Anl, IC1 on Pnl 1+1+1
15169304H0 HD74LS04P TTL IC5 on JB 1
15229706S0 PC910XK PHOTO COUPLER IC4 on JB 1
00901867 HD6413003TF16 CPU IC1 on MB 1
00897078 RA01-005 (TC170C200AF-005) XP3 IC2 on MB 1
15239124 SSC1000 Key Scan IC21 on MB 1
01125112 TC55257DFL-70L(EL) SRAM IC10,11 on MB 2
00904501 LH64256CK-60 DRAM IC3,4 on MB 2
# 01671367 LHMNOPV3 WAVE WAVE ROM IC19 on MB 1
01670201 28F400B5-B60 Flash Memory IC18 on MB 1
00232567 PCM69AU-1/T2 DAC IC15 on MB 1
15249111 TC7WU04F(TE12L) CMOS IC13 on MB 1
15249116T0 TC7W00F(TE12L) CMOS IC14on MB 1
15289105 UPC4570G2-E2 OPAMP IC16 on MB 2
15199286 AN78L05M-(E1) Regulator IC6 on MB 1
15189250 M5218AL OPAMP IC7 on Anl 1
15189190 M5216L-600Y OPAMP IC6 on Anl 1
15199188 AN78M09F Regulator IC8 on Anl 1
15199189 AN79M09F Regulator IC10 on Anl 1
15199904 M51953BL-600Y Reset IC IC4 on Anl 1
15169550T0 TC74HC138AP CMOS IC2 on Pnl 1
15169547T0 TC74HC08AP CMOS IC3 on Pnl 1
TRANSISTOR
15119823 2SB1375 Transistor Q1,5 on Amp 2
15129844 2SD2012 Transistor Q4,8 on Amp 2
15129151 2SC1815-GR(TPE2) Transistor Q9,12 on Amp, Q18-21 on Anl 2 + 4
15119132 2SA1015-GR(TPE2) Transistor Q11,14 on Amp 2
15139124 2SK363-GR(TPE2) Transistor Q10,13 on Amp 2
15119163 RN2227(TPE4) Transistor Q1-5 on Pnl, Q10 on JB 1 + 5
00898201 RN2421(TE85L) Transistor Q1 on MB 1
15119615 2SB647CTZ Transistor Q17 on Anl 1
15129152 2SC2878-A(TPE2) Transistor Q3,7,12,14-16 on Anl 6
15129164 DTC114ESTP Transistor Q6-9 on Pnl 4
DIODE
15019126 1SS133 T-77 Switching Diode D1-10 on Amp, D13,14 on Anl, D1-10 on Pnl, D11- 14 on JB 10+2+4+10
15019415 MTZJ T-77 10B Zener Diode D15 on Anl 1
00348490 SLR-325VCT31 LED LED1-9 on Pnl 9
00124601 LN282RPX LED LED10-17 on Pnl 8
RESISTOR
01238389 SR50TR 680 J Resistor R4,10 on Amp 2
13749189 SR50TR 101 J Resistor R54,64 on Anl 2
01232223 SR50TR 221 J Resistor R84 on Anl 1
# 01679912 RSS3L20 47 OHM J Resistor R80,81 on Anl 2
15409113 EXBV8V103JV R-Array RA12-18 on MB 7
00126101 EXBV8V221JV R-Array RA7-11 on MB 5
00346690 RCE9A682JAG7A R-Array RA19,20,23 on MB 3
POTENTIOMETER
13289178 14M/M RK14K12C 10KB L=4.5 Rotary Pot. VR1 on Pnl 1
01232190 14M/M RK14K1230 10KB CC Rotary Pot. VR2 on Pnl 1
13289185 11M/M RK11K1130 10KB LM1-15 Rotary Pot. VR3 on Pnl 1
# 01671345 9M/M RK09K1110 CC Rotary Pot. VR4 on JB 1
/スイッチ
注 意 : POWERSWASSYは、下記の部品を含みます。
/ジャック、ソケット
/電源ユニット
/スピーカー、ブザー
/鍵盤完成品
/基板完成品
注 意 : AMPBOARDASSYは、下記の部品を含みます。
注 意 : JACKBOARDASSYは、下記の部品を含みます。
注 意 : PHONESASSYは、下記の部品を含みます。
注 意 : PHONESBOARDASSYは、下記の部品を含みます。
注 意 : ANALOGBOARDASSYは、下記の部品を含みます。
注 意 : SPEAKERBOARDASSYは、下記の部品を含みます。
注 意 : PANELBOARDASSYは、下記の部品を含みます。
/トランジスター
/ダイオード
/抵抗
/ボリューム

C-80 Dec.1998
6
CAPACITOR
# 01678012 ECA1EAM330B Chemical Capacitor C17,18 on Amp, C31,34,43,44,52,54,59,61 on Anl 2 + 8
13639574 SME25VB4R7TP Chemical Capacitor C4,12 on Amp, C9,14,15,33,40,41 on Anl 2 + 6
# 13639569J0 SME25VB47TP Chemical Capacitor C2,10 on Amp, C2,16,46,48 on Anl 2 + 4
# 01678001 ECA1CAM101B Chemical Capacitor C21,22 on Amp 2
01453278 DE1307E 472M-KH Chemical Capacitor C26 on JB 1
13649646 SME16VB470TP Chemical Capacitor C17 on JB, on Anl 1 + 2
01564778 RV2-16V100MZ7-R Chemical Capacitor C on MB 12
01565712 RV2-25V330MZ7-R Chemical Capacitor C58,59 on MB 2
13639550J0 SME16VB100TP Chemical Capacitor C62 on Anl 2
# 13639551J0 SME16VB220TP Chemical Capacitor C on Anl 1
# 13639602J0 SME50VB1TP Chemical Capacitor C28 on Anl 1
# 00232290 SME25VB470TP Chemical Capacitor C49,56 on Anl 2
01232478 ECEA1HPY3R3 Chemical Capacitor C40,41 on Sp 2
# 13639681J0 SRA16VB47TP Chemical Capacitor C2,3,9,12,25 on Pnl 5
INDUCTOR, COIL, FILTER
01459178 PLH11B8002R2P01B1 Coil FL1 on JB 1
12449347 EXC ELDR35V Ferrite-Bead L1-5 on JB 5
CRYSTAL, RESONATOR
# 01567434 MA-406 29.6352HZ TE24 CRYSTAL X1 on MB 1
00894034 MA-406 16.000MHZ TE24 CRYSTAL X2 on MB 1
CONNECTOR
13439372 5483-04AX MOLEX Connector CN2 on Amp 1
13369939 53254-0310 2MM PITCH Connector CN7 on JB 1
13369898 B2P3-VH 7A/250V Connector CN5 on JB 1
13379152 IL-FPC-16ST-N FFC Connector CN12,13 on MB 2
13369541 B10B-PH-K-S JST Connector CN7 on MB 1
13369504 B8B-PH-K-S JST Connector CN4 on MB 1
13369932 53253-1010 2MM PITCH Connector CN5 on MB 1
13369567 B4B-PH-K-S JST Connector CN10 on Anl 1
13369930 53253-0810 2MM PITCH Connector CN1 on Anl 1
13369926 53253-0410 2MM PITCH Connector CN2 on Anl 1
13369927 53253-0510 2MM PITCH Connector CN6 on Anl 1
13439376 5483-08AX MOLEX Connector CN11 on Sp 1
WIRING, CABLE
# 01673223 WIRING SP/ZW Wiring 1
SCREW
40010245 BINDING MACHINE SCREW M3×6 BZC Jack Holder 2
40010334 BINDING MACHINE SCREW M4×8 BZC Front Pnl, Jack Hld 3
40010778 BINDING TAPPING A 3×8 BZC MR Hinge 4
40010790 BINDING TAPPING A 3×16 BZC MR Hinge 4
40012089 TRUSS TAPPING A 4×10 ZC EndBlk Hld 4
40012101 TRUSS TAPPING A 4×14 ZC Holders 91
# 40012134 TRUSS TAPPING A 4×30 ZC Sd/Rear Pnl 18
# 40017634 TRUSS TAPPING A 4×40 BZC Bushing 1
40010689 TRUSS TAPPING A 4×25 BZC Blind 6
# 40019478 FLAT TAPPING A 3×12 BZC Hinge 4
40125578 FLAT TAPPING A 4×30 BZC Top Bar 6
40128512 PAN WASHER HEAD TAPTITE B 4×25 BZC Keyboard 11
40011056 BINDING TAPTITE B 3×6 ZC PWB 34 + 7
40011312 BINDING TAPTITE P 3×8 BZC MIDI Connector 2
40012490 BINDING TAPTITE P 4×10 BZC AC Inlet 2
40013023 PAN MACHINE SCREW W/SW+PW M4×25 BZC Baffle Board 11
40012923 PAN MACHINE SCREW W/SW+PW M4×25 ZC Speaker 8
40013089 PAN MACHINE SCREW W/SW+PW M4×15 ZC Zweeter 8
40012867 PAN MACHINE SCREW W/SW+PW M3×8 ZC Pwr.SW 2
40011612 OVAL WOOD SCREW 3.1×16 BZC Hinge 4
40011745 SPRING NUT M4 ZC Jack Holder 1
PACKING
# 01674178 PACKING CASE Packing Case 1
# 01674678 LEG PACKING CASE Packing Case 1
# 01781067 PACKING SHEET Sheet 1
# 01781078 MR PACKING SHEET Sheet 1
# 01781089 PROP PACKING SHEET A Sheet 1
# 01781090 PROP PACKING SHEET B Sheet 1
# 01452156 PE FOAM SHEET 1+HD0.01×900×600 Vinyl Bag 3
# 40342301 PE FOAM BAG 0.5+HD0.01×900×1000 Vinyl Bag 1
MISCELLANEOUS
# 01678578 POT DUST COVER Cover 1
40017378 COATING CLIP CS-7 Clip 4
ACCESSORIES (STANDARD)
00894367 AC CORD SET 100V SP18A+IS14 VCTF2X0.75 1
00894378 AC CORD SET 120V SP301+IS14 SJT18/3 1
00894389 AC CORD SET 230V SP22+IS14 H05VV-F3G1.0 1
00907001 AC CORD SET 240VE KP-610,GTBS-3,KS-31A 1
23495124 AC CORD SET 240VA SC-114-J01 ES303-10HMA 1
# 71129223 OWNER'S MANUAL SET (ENGLISH/JAPANESE) 1
# 01674490 COVER Cover 1
40232345 (JAPAN ONLY)
STAND PART LIST
# 71239390 LEG ASSY 3
# 71239401 LEG BOARD ASSY 1
# 71129856 SCREW SET 1
NOTE : SCREW SET includes the following parts.
12569254 SCREW DRIVER NO.2 Tool 1
# 40342101 PAN MACHINE SCREW W/SW+PW M5 × 45 BZC Sems Screw 9
# 40342389 KNOB BOLT KT-B M5×35 Bolt 3
/コンデンサー
/インダクター、コイル、フィルター
/クリスタル、発振子
/コネクター
/ワイヤリング、ケーブル
/ねじ類
/梱包材
/その他
/標準付属品
保証書
/スタンドパーツリスト
注 意 : SCREWSETは、下記の部品を含みます。

C-80 Dec. 1998
7
TEST MODE
Required items
MIDI cable : 1
Pedal Switch (DP-2/6)
qIndication of Switch LEDs
The following figures show the status of LEDs.
fig. 1.
fig. 2.
<Reading Version No. >
fig. 3.
1. To enter the test mode
When pressing down the power switch, simultaneously hold down the [8'I],
[8'+4'] and [Organ 1] buttons. All LEDs shall illuminate.
:::OFF BLINKON
Lute Celesta I OrganHarpsichord II8 I 8 II 8 +8 8 +4 Pitch
Baroque ment Tempera-
Detune
Demo Octave Shift Pedal FunctionUpDown
Mode
Equal
Werckmeister
Kirnberger
Vallotti
Meantone
Just Major
Pythagorean
Just Minor
2. Display of Device Check and ROM Version
In entering the test mode, the CPU shall begin checking the device
automatically, and ROM version shall be shown at the LEDs of the tones. If
there were any malfunction in device check, the corresponding LED from
"Equal" to "Meantone" should blink rapidly. By pressing the "Baroque
Pitch" button down, you can proceed on the next stage.
Lute Celesta I OrganHarpsichord II8 I 8 II 8 +8 8 +4 Pitch
Baroque ment Tempera-
Detune
Demo Octave Shift Pedal FunctionUpDown
Mode
Equal
Werckmeister
Kirnberger
Vallotti
Meantone
Just Major
Pythagorean
Just Minor
: Flash ROM
: Memory
: Wave ROM
: Effect RAM
: Kscan Chip
LED
To next stage
Location of error IC
Display of Error
Display of Version
3. Switch/LED Check
All LEDs illuminate. When any button is pressed, the corresponding LED
alternately changes from the illuminated to the non-illuminated mode, and a
Harpsichord sound can be heard. In case of the LEDs from "Equal" to "Just
Minor", pressing the "Temperament" button down, the corresponding LED
goes out in turn. When All LEDs are non-illuminated, you can proceed on
the next stage automatically.
fig. 4.
NOTE: Pressing the "Baroque Pitch" and " Temperament" buttons
simultaneously at this stage, you can proceed on the next stage by
force.
NOTE: In case of pressing two buttons simultaneously by mistake, the
corresponding LED should blink.
4. Sound Check
The LEDs from the "8'I" to "Lute" buttons blink. Upon pressing the Buttons
as shown below, the corresponding sound can be heard. Pressing the
"Baroque Pitch" button down, you can proceed on the next stage.
Lute Celesta I OrganHarpsichord II8 I 8 II 8 +8 8 +4
Detune
Demo Octave Shift Pedal UpDown
Mode
Ver1.00
Lute Celesta I OrganHarpsichord II8 I 8 II 8 +8 8 +4
Detune
Demo Octave Shift Pedal UpDown
Mode
Ver1.01
Lute Celesta I OrganHarpsichord II8 I 8 II 8 +8 8 +4
Detune
Demo Octave Shift Pedal UpDown
Mode
Ver1.07
:
fig. 5.
Lute Celesta I OrganHarpsichord II8 I 8 II 8 +8 8 +4 Pitch
Baroque ment Tempera-
Detune
Demo Octave Shift Pedal FunctionUpDown
Mode
Equal
Werckmeister
Kirnberger
Vallotti
Meantone
Just Major
Pythagorean
Just Minor
MAX
Center
Min
Dry Reverb Sine (Left)
Square (Right) To next stage
Sine (Center)
Lute Celesta I OrganHarpsichord II8 I 8 II 8 +8 8 +4 Pitch
Baroque ment Tempera-
Detune
Demo Octave Shift Pedal FunctionUpDown
Mode
Equal
Werckmeister
Kirnberger
Vallotti
Meantone
Just Major
Pythagorean
Just Minor
/テストモード
用意するもの
MIDIケーブル 1本
ペダル・スイッチ（DP-2/6）
qLEDの点灯状態
LEDの点灯状態は、下図の通りです。
/バージョンの見分け方
1. テストモードに入る
[8'I]+[8'+4']+[Organ1]を押しながら電源を入れてください。下記図の
ように全LEDが点灯します。
/点灯 /消灯 /点滅
2. デバイスチェック／ROMバージョンの表示
テストモードに入ると、自動的にデバイスチェックが行われるととも
に、音色LEDにROMのバージョンが表示されます。バージョンの見
分け方は、fig.3.を参照。デバイスチェックでエラーが有った場合
は、EqualからMeantoneの該当するLEDが高速点滅します。[Baroque
Pitch]を押すと次に進みます。
/次へ進む
エラーがあるIC名
/エラー表示部
/バージョン表示部
3. スイッチ／ＬＥＤチェック
全LEDが点灯します。各SWを押すと、対応するLEDの点灯／消灯を
繰り返すとともにハープシコードの音が発音します。"Equal"から
"JustMinor"については[Temperament]を押すと順次消灯（点灯）しま
す。
全てのLEDを消灯すると自動的に次に進みます。
※ [BaroquePitch]+[Temperament]を押すと、強制的に次に進みま
す。
※ ２つのSWを同時に押してしまった時は、そのLEDが点滅しま
す。
4. サウンドチェック
[8'I]-[Lute]のLEDが点滅します。各ボタンを押すと下図のように発
音します。[BaroquePitch]を押すと次に進みます。
/次へ進む

Dec. 1998
8
C-80
After detecting the maximum and the minimum of the controller once, in
case that the controller is returned to the minimum or the center again, the
corresponding LED should go out. (If the travel doesn't reach at the
maximum or the minimum, the LED should blink.)
fig. 6.
<Ex: Press the Pedal down >
fig. 7.
5. A/D /MIDI Check
5-1. A/D Check (Pedal, Reverb, Tune)
When proceeding on this stage, [8'I] to [8'+4'] of LEDs as shown below
blinks. (No Checking) Traveling each controller (Pedal/Reverb/Tune) from
maximum to minimum, the corresponding LED shall illuminate.
In case that two controllers are moved simultaneously by mistake, the
corresponding LED should blink. Then traveling from maximum to
minimum once or twice, the LED should display correctly.
5-2. MIDI Check
NOTE: When proceeding on this stage, if no connecting MIDI cable, the
corresponding LED "8'+4'" should blink in opposite phase.
Hook up MIDI IN and MIDI OUT sockets via MIDI cable. If the Active
sensing is detected correctly, the LED of "8'+4'" button shall illuminate. And
then removing the cable, the LED shall non-illuminate.
<Ex: Let the pedal off >
fig. 9.
fig. 10.
Lute Celesta I OrganHarpsichord II8 I 8 II 8 +8 8 +4 Pitch
Baroque ment Tempera-
Detune
Demo Octave Shift Pedal FunctionUpDown
Mode
Equal
Werckmeister
Kirnberger
Vallotti
Meantone
Just Major
Pythagorean
Just Minor
MAX
Center
Min
LED A/DLevel
A/D Pedal
A/D Reverb
A/D Tune
MIDI
Lute Celesta I OrganHarpsichord II8 I 8 II 8 +8 8 +4 Pitch
Baroque ment Tempera-
Detune
Demo Octave Shift Pedal FunctionUpDown
Mode
Equal
Werckmeister
Kirnberger
Vallotti
Meantone
Just Major
Pythagorean
Just Minor
MAX
Center
Min
LED A/DLevel
A/D Pedal
A/D Reverb
A/D Tune
MIDI
Lute Celesta I OrganHarpsichord II8 I 8 II 8 +8 8 +4 Pitch
Baroque ment Tempera-
Detune
Demo Octave Shift Pedal FunctionUpDown
Mode
Equal
Werckmeister
Kirnberger
Vallotti
Meantone
Just Major
Pythagorean
Just Minor
MAX
Center
Min
LED A/DLevel
A/D Pedal
A/D Reverb
A/D Tune
MIDI
fig. 8.
When detecting Active sensing of MIDI IN / OUT are received and un-
received and the Min / Max on each of A/D channels, you can proceed on the
next stage automatically.
NOTE: By pressing the "Baroque Pitch" and "Temperament" buttons down
simultaneously, you can proceed on the next stage.
6. End
All LEDs illuminate from left to right one after another. Pressing the
"Baroque Pitch" button down one more time, you can execute test mode
again. To exit the test mode, switch the power on again.
Lute Celesta I OrganHarpsichord II8 I 8 II 8 +8 8 +4 Pitch
Baroque ment Tempera-
Detune
Demo Octave Shift Pedal FunctionUpDown
Mode
Equal
Werckmeister
Kirnberger
Vallotti
Meantone
Just Major
Pythagorean
Just Minor
MAX
Center
Min
LED A/DLevel
A/D Pedal
A/D Reverb
A/D Tune
MIDI
Lute Celesta I OrganHarpsichord II8 I 8 II 8 +8 8 +4 Pitch
Baroque ment Tempera-
Detune
Demo
→
Octave Shift
Pedal FunctionUpDown
Mode
Equal
Werckmeister
Kirnberger
Vallotti
Meantone
Just Major
Pythagorean
Just Minor
一度最大値と最小値を検出した後で、最小値または中央に戻すと操作
子に対応するLEDが消灯します。（最大／最小値のいずれかが検出
されていない場合は点滅します。）
/例：ペダルを踏む
5. A/D/MIDIチェック
5-1. A/Dチェック（ペダル，リバーブ,チューンつまみ)
このモードに入ると、[8'I]から[8'+4']の各LEDがfig.8.のように点滅し
ます。（未チェックの状態）。
Pedal/Reverb/Tune各々を最大から最小まで操作すると、Equalか
らJustMinorの対応する各LEDが点灯します。
２つの操作子が同時に動いた場合、動いた操作子のLEDが点滅しま
す。その後、１回または２回最小値<->最大値と動かすと表示が元
に戻ります。
5-2. MIDIチェック
※ AD/MIDIチェックに入った時点でMIDIケーブルが接続されて
いない時は、MIDIに対応しているLED"8'+4'"が逆相で点滅しま
す。
MIDIIN/OUTをループ接続してください。正常にActiveSensingを検
出すれば"8'+4'"のLEDが点灯し、ケーブルを抜くと消灯します。
/例：ペダルを離す
各A/DチャンネルのMin/MaxおよびMIDIIN/OUTのActiveSensing
受信状態／非受信状態を全て
検出すると、自動的に次に進みます。
※ [BaroquePitch]+[Temperament]を押すと、強制的に次に進みま
す。
6. 終了
LEDが左から右に順次点灯していきます。もう一度[BaroquePitch]を
押すと、TestModeを再度実行します。
電源を入れ直すとテストモードを抜けます。

C-80 Dec. 1998
9
DISASSEMBLING THE KEYBOARD
70017534
70017523
12
00018990
11 40011067
10 01673923
40012256
00019001
22265528
40341567
22265529
6
01673945
8
70017501
71129890 SK-861-M PARTS LIST
q
ey
ro
!0!2
wtu
i!1
SK-8 N-KEY CF MAT BROWN
SK-8 N-KEY EB MAT BROWN
SK-8 N-KEY D MAT BROWN
SK-8 N-KEY G MAT BROWN
SK-8 N-KEY A MAT BROWN
SK-8 N-KEY CF' MAT BROWN
SK-8 S-KEY MAT IVORY
SK861-H CHASSIS ASSY F SCALE
SK861-H CHASSIS F-SCALE
SK-861 CUSHION 61KEY A
SK-861 CUSHION 61KEY B
SK-8 GUIDE
SK861-H PWB 30P HI ASSY
SK861-H PWB 31P LOW ASSY
SK-8A RUBBER SWITCH 12P
SK-8A RUBBER SWITCH 13P
SK-8 PCB SPACER 12P
SK-8 PCB SPACER 8PL
SK-8 STOPPER 12P
SK-8 STOPPER 8PH
SK-8 STOPPER 8PL
SK-8 C-80 SPRING
BINDING HEAD TAPTITE B TYPE 3×10 ZC
C-80 KEYBOARD ANGLE
BINDING HEAD TAPTITE B TYPE 3×8 ZC
SK861-H C-ACTUATOR 12P ASSY
SK861-H C-ACTUATOR 13P ASSY
00018978
22205596
22205597
01015145
01015134
70017512
32155199
00019923
70017490
01673990
01673934
01673978
01673956
01673967
01673989
9
7
5
4
3
2
1
PARTS NAMEPARTS No.No.
FUJI CARD
01237078 FUJI CARD 16×250-A6.0BBR-P1.25 HBL10
Parts List
1) Turn the chassis over as shown in fig.1. Next, place the SPACER 8PL
and the 4-SPACER 12Ps on the chassis from the left end (the bass side
of the keyboard) in turn, aligning it with the positioning holes provided
on the chassis. (Refer to fig.2) And then place cut SPACER 12P,fitting
to end of the chassis, on the right side (the treble side of the keyboard) in
same way.
22205596
70017501
SK861-H PWB 30P HI ASSY
SK861-H PWB 31P LOW ASSY
SK-8A RUBBER SWITCH 12P
SK-8A RUBBER SWITCH 13P
SK-8 PCB SPACER 12P
SK-8 PCB SPACER 8PL
BINDING HEAD TAPTITE B TYPE 3
× 10 ZC
1
1
4
2
5
1
24
70017512
40012256
22205597
01015145
01015134
QtyPARTS NAMEPARTS No,
Cut SPACER 12P
Positioning Hole
SPACER 12P ×4SPACER 8PL
Positioning Hole
Positioning Hole
Treble sideBass side
fig.2
fig.1
1. ATTACHING THE CIRCUIT BOARD
/鍵盤分解手順
/必要部品
1) まず、シャーシを左右が逆にならないように裏返します。
次に、fig.1に示すように左側（鍵の低音側）よりSPACER8PLを
シャーシの位置決め穴にあわせて置き、その右よりSPACER12P
を4つ置きます。（fig.2参照のこと）右側（高音側）には
SPACER12Pをシャーシ端面に合わせてカットしたものを置きま
す。
SPACER12Pをカットしたもの
シャーシ位置決め穴シャーシ位置決め穴
シャーシ位置決め穴
高音側低音側
/基板の取り付け方

Dec. 1998
10
C-80
2) Put the RUBBER SWITCH bosses into the spacer positioning holes,
and place the 4-RUBBER SWITCH 12Ps on the SPACER 12P exactly.
At the highest and the lowest tone areas, Cut the RUBBER SWITCH
13P as shown in fig.5 and fig.6 and place each cut piece. At this point,
the RUBBER SWITCHES should be fitted to the cutout and the air-
escape grooves of the spacers.
(Refer to fIg.3 and fig.4)
3) Aligning the cutout in the PCB with lugs on the SPACERS, place the
PCB on the chassis so that the SPACER positioning pins fit into the
PWB positioning holes. The PWB consists of two boards(the LOW and
HI PCBs) as shown in fig.8. (Refer to fig.7)
4) Using the screws(Biding Head Taptite B type), fasten the LOW and HI
PWBs to the chassis from the center of the keyboard, that is, from LOW
PWB as shown in fig.9. While you are screwing in the PWB at the
center of the keyboard, screw down opposite end, before screwing in
other areas in the middle of the PWB. In addition, the PWBs may be
wrapped by soldering, etc. It is recommended that each PWB should be
fastened screws while holding down the middle of the PWB lightly.
Finally, screw down the adjacent area between the LOW and HI PWBs.
(Refer to fig.9)
NOTE : When using an electric screwdriver, be careful of the torque. lf
excessive force is applied, the PWB may break or chip.
fig.4
Cutout in the PWB
Air-escape groovos
fig.3
Chassis
PCB SPACER
RUBBER SWITCH
6-Positioning Boses
Place on the Cut SPACER 12PL
Place on the SPACER 8PL
fig.6
fig.5
Disuse
DisuseDisuse 8PL
The High note AreaThe Bass side
SPACER Positioning Pin
Cutout in the PWB
Lug of SPACER
fig.7
fig.8
30P HI
31P LOW
(Ex. The 31P LOW PWB's screwing in turn
weq
fig.9
2) 次に、SPACERの丸穴部にRUBBERSWITCHのボスを位置決めし
て、SPACER12Pに合わせてRUBBERSWITCH12Pを4ケおき、
最低音部、最高音部にはRUBBERSWITCH13Pをfig.5fig.6のよう
に切断したものを取り付けます。この際、RUBBERSWITCHと
SPACERの外形切り欠き部、および空気溝の位置が合うように注
意してください。
（fig.3fig.4参照のこと）
3) 次に、PWBの切り欠き部とSPACERの凸部を目印として、
SPACERの位置決めピンにPWBの位置決め穴がはまるように
PWBをおきます。（fig.7参照のこと）PWBは、fig.8で示される
ようにLOW,HIの2枚で構成されています。
4) 次に、TAPTITESCREWSでPWBLOW,HIをともに鍵盤中央部1
からねじ止めしていきます。ねじ止めによって、PWBがSPACER
より浮き上がってしまうことがあるため、中央部1をねじ止めし
た後、端部2、中央部3の順にねじ止めします。（fig.9参照のこ
と）
基板がハンダ付け等によってソリを生じていることがあるため中
央部を軽くおさえながらねじ止めするとよいでしょう。
注) 電気ドライバー等を使用する際は、トルク管理に十分注意してく
ださい。過大な力が加わると、PWBが割れまたは欠けるおそれ
があります。
外形切り欠き部
空気溝
シャーシ
位置決め用ボス（６ケ所）
SPACER12P（切断加工品）の上に置く
SPACER8PLの上に置く
捨て
捨て捨て
高音側低音側
SPACER位置決めピン
PWB切り欠き部
SPACER凸部
/例31PLOWねじ止め順序)

C-80 Dec. 1998
11
Each stopper is attached as shown fig.11
The above is a view from the rear side of the chassis.
Before removing the keys, take the stopper off the rear side of chassis, then
take away the spring. When reinstalling the keys, carefully apply the stopper
as shown fig.10.
Bring the stopper into close contact with the ends of the natural key shafts
and press the stopper in the area of the double-coated tape to secure it.
2. REMOVAL AND REINSTALLATION OF THE KEYS
Natural Key Shaft
Sharp Key Shaft
Stopper
Double-coated Tape
fig.10
STOPPER 8PL STOPPER 8PHSTOPPER 12P ×4
fig.11
30P HI
31P LOW
ASSEMBLING THE STAND
To move the C-80, lift it carefully— all the while keeping it level. Be very careful, when you assemble and move the C-80, to make sure that you
do not drop it on your hands or feet.
1. Use the included screws and a slotted screwdriver to fasten the
legs to the stand.
2. Place the instrument so that the two rubber feet located on the
bottom of the unit enter the holes in the stand.
3. Insert the three knob bolts for attachment of the included stand
through the holes located beside each leg, and tighten them.
* Check to make sure the knob bolts securing the unit to the stand
have not become loose. Fasten them again securely whenever
you notice any loosening.
The same contents are written on p.8 in the C-80 Owner’s manual.
2
2
333
Never lean against, or otherwise apply excessive force to the C-80. Doing so can cause it to topple and fall down.
/なおストッパーはfig.11のように取り付けられています。
/図はシャーシ裏面から見た図です。
鍵を取りはずす際は、まずシャーシ裏側からストッパーをはがし次に
スプリングをはずして、鍵を抜きます。
鍵を取り付ける際は、fig.10に示されるようにストッパーの貼り方に
注意して下さい。
ストッパーは白鍵軸部の端に密接させて取り付け、両面テープ上を押
さえつけ確実に固定させてください。
/
鍵盤の取り付け、取りはずし方
白鍵軸部
黒鍵軸部
ストッパー各種
両面テープ
/スタンド組立手順
本機を組み立てたり、移動したりする際は、手を挟んだり、足の上に落とさないよう、十分にご注意ください。
1. 付属の脚取付ネジとプラス・ドライバーで脚をスタンド
に固定します。
2. 本体の裏面にある2個のゴム足がスタンドの穴に入るよう
にして本体を載せます。
3. 付属のスタンド取付用ノブ・ボルト3本をそれぞれの脚の
そばにある穴からねじ込み、固定します。
※ 機器本体とスタンドを固定しているノブ・ボルトがゆる
んでいないか、確認してください。ゆるんでいる場合は
しっかり固定して下さい。
本紙と同様の内容を取扱説明書の8ページに記載しておりま
す。
構造上、もたれかかるなど本体に無理な力を加えると、転倒の恐れがあります。
充分にご注意ください。

Dec. 1998
12
C-80
View from components side.
CIRCUIT BOARD (MAIN)
View from foil side.
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
BLOCK DIAGRAM
KEY BOARD
A
EA
EDED
A
D
I/V LPF
IP
OP
AD
MK BKT
DA
CPU
DA
SRAM
ADDRESS BUS
DATA BUS
AD
MAIN BOARD
LED+SW
MATRIX
IC1
ROM
IC10, IC11 IC18
IC3, 4
XP
IC2 IC13
WAVE ROM
D/A
IC15 IC7 IC16
DATA
KEY SCAN
IC3
LIOUT
RIOUT
DRAM D
DA
BUFFER
EA
IC1
REVERBE
PANEL BOARD
MASTER VOLUME
BRILLIANCE
POWER
AMP
OUT IN
AMP
SPEAKERS
LR
JACK BOARD
TUNE
PHONES
+13V
AGND
-13V
+13V
AGND
-13V
DGND
D+5V
AGND
DGND
D+5V
A+9V
A-9V
SWITCHING
REGLATOR
PHOTO
COUPLER
PHONES
BOARD
OUTPUT
IC5
IC1
IC1
Q3, Q7
IC7 Q15, Q16
Q12, Q14
IC6
IC1, Q1,Q4, Q5, Q8, Q9, Q11, Q12, Q14
AMP BOARD
SPEAKER BOARD
C40, C41
INLET
IC8, IC10
MUTE
BUFFER MUTE
MUTE
MUTE
CONTROL
MUTE
ANALOG BOARD
A+9V
A-9V
MIDI
PEDAL
/ 基板図(MAIN)/ブロック図

C-80 Dec. 1998
13
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
CIRCUIT DIAGRAM (MAIN)/回路図(MAIN)

Dec. 1998
14
C-80
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
View from components side.
CIRCUIT BOARD (ANALOG) NOTE
ANALOG BOARD ASSY includes the following parts.
# 01673345 WIRING 10×410-P2.0-PH-51015-R Wiring CN3 on Anl 1
# 01673356 WIRING 8×430-P2.5-XH-5395-F Wiring CN11 on Anl 1
/基板図(ANALOG)
ANALOGBOARDASSYは、下記の部品を含みます。

C-80 Dec. 1998
15
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
CIRCUIT DIAGRAM (ANALOG)
6LJQDO /FK
6LJQDO 5FK
087(&75/
3:$03087(
$03087(
087(&75/
087(&75/
$03087(
3+21(66:
3+21(66:
3:$03087(
6,*/
6,*5
6,*/
6,*5
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$


$



$


'
'
$
$

$



$


$


$

'


'

$



$


'
'

$



$

$



$
$
$

$



$
$

$



$
$
$
'


'
'
)
)
)
)
)
$
$
$
$
$
$
$
$
$
$
$
)
)


$



$
$
)
5

5
.
5
.
5

5
.
4
6&$


4
6&$


&

&

&1
ZLULQJ




















&

5
.
5
.
&

5
.
5
.
5

5
.
&

4
6&$


5

&

4
6&$


,&%
0/





5
.
5

5
.
4
6&$


5

&

5
.
&

5
.
4
6&$


&1
ZLULQJ
















,&
$10)
,1

287

*1'

,&
$10)
,1

287

&20 
&

&

&

&

&

&

&

&1











&
3.
&
3.
&
3.
4
6&*5

 
4
6&*5

 
4
6&*5

 
5
.
5
.
5
.
5

5
.
5
.
&

&

&

'
66


'
66


5
.
5
.
5
.
5
.
5
.
5
.
5
.
5
.
5
.
5
.
5
.
,&
0%/
1&

*1'

567 
'/<

9&&

5

&

5
.
5
1,8
5
1,8
&
 RKP
&
1,8
5

,&%
1,8





,&&
1,8



,&%
0$/





5
.
,&$
0/





5
.
5

&

&

&

,&&
0$/



5
1,8
5
1,8
&
1,8
&
1,8
5
1,8
5
1,8
&
1,8
,&%
1,8





&

&

&

&

,&&
0$/



,&&
0/



,&%
0$/





5

/
 RKP
/
 RKP
,&$
0$/





5

5
.
5
.
&
3.
,&$
0$/





&

5
.
&

&

&1

















5
1,8
5
1,8
&
1,8
5
1,8
5
1,8
&
1,8
5

5
1,8
&
1,8
&
3
5
.
5
1,8
5
1,8
5
1,8
5
.
5
.
&
 RKP
&
1,8
5

,&$
1,8





&
3
,&$
1,8





&

&

&

,&&
1,8



&1
%%3+.6








&1









4
6%&

 
&

4
6&*5



'
07=-%
 
&

5
.
5

5

5
.
5
1,8
5
.
5
1,8
)LQLVK
&
3.
&
3.
&1
%%3+.6










&

/回路図(ANALOG)

Dec. 1998
16
C-80
CIRCUIT DIAGRAM (AMP)
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
CIRCUIT BOARD (AMP)
View from components side.
NOTE
AMP BOARD ASSY includes the following parts.
# 01673378 WIRING 4×90-P2.0-51065-51015-F Wiring CN1 on Amp 1
01344890 HEATSINK Heatsink 1
# 01673367 WIRING 4×420-P2.5-XP-5395-R Wiring CN3 on Amp 1
01454001 IC HOLDER Holder 2
# 40340978 LABEL AMP BOARD ASSY NO. Label 1
40011067 BINDING TAPTITE B 3×8 ZC Tap Tite B 4
40012889 PAN MACHINE SCREW W/SW+PW M3×12 ZC Sems Screw 2
5FK
/FK


$
$
$




$
$


4
6%2

 
4
6'

 
5

5
.
5
.
&

5
.
&

4
6%2

 
4
6'

 
5

5
.
5
.
5
.
&

5
.
'
66

'
66

5
.
&

5
.
5
.
'
66

'
66

&

4
6.*5

 
4
6.*5

 
'
66

'
66

4
6$*5

 
4
6&*5

 
4
6$*5

 
4
6&*5

 
5
.
5
.
5
.
&1





&

&

,&%
0$/




,&&
0$/



,&$
0$/




&
 5 .
5
.
5
.
&1
$;








&1






'
66

'
66

5
.
'
66

'
66

5
.
/ 回路図(AMP)/ 基板図(AMP)
AMPBOARDASSYは、下記の部品を含みます。

C-80 Dec. 1998
17
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
CIRCUIT BOARD (PANEL, JACK, PHONES, SPEAKER)
PANEL BOARD ASSY
View from components side.
JACK BOARD ASSY PHONES ASSY
SPEAKER
BOARD
ASSY
NOTE
PANEL BOARD ASSY includes the following parts.
# 01673323 WIRING 8×430-P2.0-51065-51015-R Wiring CN1 on Pnl 1
# 01673312 WIRING 10×340-P2.0-51065-51015-F Wiring CN2 on Pnl 1
# 01673290 WIRING 3×170-P2.0-51065-51015-F Wiring CN3 on Pnl 1
00453223 LED SPACER LDS-70G Spacer LED10-17 on Pnl 8
NOTE
JACK BOARD ASSY includes the following parts.
# 01673267 WIRING W2 Wiring CN4 on JB 1
# 01673278 WIRING 8×210-P2.0-PH-SAN-F Wiring CN8 on JB 1
# 01673289 WIRING 4×190-P2.0-PH-51015-R Wiring CN6 on JB 1
00908789 WIRING M Wiring JK1 on JB 1
12199584 GROUNDING TERMINAL M1698 Terminal on JB 2
NOTE
PHONES ASSY includes the following parts.
# 01670656 PHONES HOLDER Holder 1
22150756 JACK NUT 2 Nut 1
# 71129834 PHONES BOARD ASSY Assy (Unit) 1
PHONES BOARD ASSY includes the following parts.
# 01673301 WIRING 5×640-P2.0-51065-51015-R Wiring CN9 on Ph 1
23485590 WIRING W8 348-590 Wiring on Ph 1
NOTE
SPEAKER BOARD ASSY includes the following parts.
# 01673389 WIRING 4×120-P2.5-5480-5395-F Wiring CN10 on Sp 1
/
基板図(PANEL,JACK,PHONES,SPEAKER)
PANELBOARDASSYは、下記の部品を含みます。
JACKBOARDASSYは、下記の部品を含みます。
PHONESASSYは、下記の部品を含みます。
PHONESBOARDASSYは、下記の部品を含みます。
SPEAKERBOARDASSYは、下記の部品を含みます。

Dec. 1998
18
C-80
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
CIRCUIT DIAGRAM (PANEL, JACK, PHONES, SPEAKER)
5(9
(5%
3HGDO
7XQLQJ9RO
0,',
2XWSXW
/0RQR
5
3 ,QOHW
3KRQHV
7R $PS &1
7R 6SHDNHU
7R $QDORJ &1
7R 6:5HJ &1
7R 3ZU6:
7R $QDORJ &1

7R 3DQHO &1
7R 0DLQ &1
7R 0DLQ &1
7R -DFN &1
7R $QDORJ &1
6(1'
B5
$*1'
6(
1'B/
$
$
5(
7851B/
$*1'
5(7
851B5
'
5(9
(5%
'*1'
'
'*1'
;6&1(
1
56S
5*1'
5=Z
5*1'
/*1'
/=Z
/*1'
/6S
/2XW
$*1'
$*1'
52XW
'*1'
'
5(9
(5%
5(9
(5%
'
'*1'
3('$/
3('$/6
:
781,1
*
0,',2
87
0,',
,1
3KRQHV %RDUG
6SHDNHU %RDUG
-DFN %RDUG
3DQHO %RDUG
%ULOOLDQFH
%ULOOLDQFH
0DVWHU
9ROXPH
5*1'
/*1'
/6LJ
56LJ
3KRQHV 6
:
/3K
$*1'
53K
$


'


'


$
$
$
'
'
'
'
'


'
'


'


'
'
'


'


'
)
(
5


)
(
5


)
(
5


)
(
5


)
(
5


)
(
5


)
(
5


)
(
5


5
(
)
5
(
)
5
(
)
'
'
'


'
'
'
5
(
)
5
(
)
5
(
)
5
(
)
5
(
)


'


'


'


'
$
$
$
$

$

'
'
'
'
'
'
'
66

'
66

'
66

'
66

'
66

'
66
 
'
66
 
'
66


/('
6/5
9&


/('
6/5
9&


/('
6/5
9&


/('
6/5
9&


/('
6/5
9&


/('
6/5
9&


/('
/1
53;


/('
/1
53;


/('
/1
53;


/('
/1
53;


/('
/1
53;


6:
(94$
5


6:
(94$
5


6:
(94$
5


6:
(94$
5


6:
(94$
5


6:
(94$
5


6:
(94$
5


6:
(94$
5


6:
(94$
5


&1
:,5,1*
:




/('
6/5
9&


/('
/1
53;


'
66

6:
(94$
5


4
51

 
,&$
7&+&
3



,&%



,&&



,&%
+'/6
3


,&$
+'/6
3


,&&


,&(


,&)


,&%
0$/





-.
+/-




-.
+
/-



-.
<.%










-.
3:
,


5

5

5

5

5
.
5
.
5
.
5
.
5
.
5
.
5

5
.
5

5

5
.
5

5

5

5
.
&
3
&1






















&1








4
51

 
95$
5.
.#




95%
5.
.#
 
95%
5.
.#



95$
5..
&#
 



/
(;
&(/'59
/
(;
&(/'59
4
'7&
(6

 
&

95$
5.
.#



95%
5.
.#
 
5

&

4
51

 
4
51

 
4
'7&
(6

 
4
'7&
(6

 
,&'


)/
3/+%
53%




&
3.
&
3.
&1










,&$
0$/





&
3
&

,&(
7&+&
3

4
51

 
'
66
 
4
51

 
&

&
'(
(0.+
7(5
0




&

&1


















'
66

/('
/1
53;


'
66

/('
/1
53;


'
66

/('
6/5
9&


'
66

/('
6/5
9&


&

&

95$
5.
.#



,&
7&+&
3
&

%

$

*%

*$

*

<

<

<

<

<

<

<

<

9&& 
*1'

&

4
'7&
(6

 
,&'



&1
%
39+




5
.
95&
5.
.#
 
95%
5..
&#
 
5

5
.
&

5
.
&

5
.
-.
+/-




&

&1

$;
















&

&

&

&

&

&1


















&

,&&
0$/



&
3
&
3
&

&

&1









&
3
&

&
3
&1












&1








5
.
5
.
5
.
5
.
5
.
5
.
&
3
&
3
&
3
&
3
/
(;
&(/'59
/
(;
&(/'59
/
(;
&(/'59
5
.
5
.
5
.
&

-.
<.)

 
,1 287
   






   
5
.
,&
3&





,&*
+'/6
3

&

7(5
0




/
回路図(PANEL,JACK,PHONES,SPEAKER)

C-80 Dec. 1998
19
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
CIRCUIT BOARD (KEYBOARD)
View from components side.
/ 基板図(KEYBOARD)

Dec. 1998
20
C-80
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
CIRCUIT DIAGRAM (KEYBOARD)
P.M.0 S.M.0 P.M.1 S.M.1 P.M.2 S.M.2 P.M.3 S.M.3
T0 T1 T2 T3 T4 T5 T6 T7
T0 T1 T2 T3 T4 T5 T6 T7
P.M.4 S.M.4 P.M.5 S.M.5 P.M.6 S.M.6 P.M.7 S.M.7
PS
MM
C4
31P LOW
F6
F1 C2 G#2 E3 G#4 C6E5
30P HI
/ 回路図(KEYBOARD)