ROLAND U 20

Page 1

Pot. EWA - NAO X 15A14 10kA (VOLUME)

(1 3359356)

Pot. EWA - NFE >< 15B15 100kB (C1.C2/VALUE)

(13359361)

AC Cord Bushing Holder
A A 100V, 220V, 240VA
(22205357)
A B 117V, 240VE
(22205358)

JUNE 1989 U _ 20
- Rs-FEM SERVICE NOTES .
U E KEYBDAHEI TABLE OF CONTENTS E a Page
F zrsz Edztzon
EXPLODED VIEW 5%?- 2
SPECIFICATIONS/lifi KEYBOARD EXPLODED VIEW mfififim 3. 4
KEYBOARD -------------------------------- 6, "065 (With ve'oci'v sensitivitv and DISPLAY ------ -- 2 line 24 character (with backngm) PARTS LIST ,(_\y U 1 l 5
c annel aftertcuch) DIMENSIONS" -- 935 (w) x 310 (D) x as (H) mm WIRING g 4 17 U yy 6-8
SOUND GENERATOR ---------------------- 253x755"? sslmgnggggrmgs, 30 News 38-3/4" x 12-1/6" x 3-1/4 inch
' W D ) BLOCK DIAGRAM 71:1.) 7 E 9
INYEHNAL MEMORY WEIGHT---- -- l0 kg (22 lbs) _ z b :E- F 10-21
-------- men comm... Assam :13 1 TEST MODE T N we 00>
e boar arches: _ -*__.:" ~ E,
Cthd Sets: ______ ACCESSORIES ------------- Owner's Manual-:English (26025696) x 1 CONFIRMATION OF FLROM VERSION No. P ROM )3 J 0'0) '1
Sm, We magma (25025595) x 1 MEMORY INITIALIZE x E 0 -O4 : 9 1» 5 4 X (20>
Timms: _______ Sound Patch Chart 5 ~31 (7)"-9 0%],135 (21)
Rhythm Sets (84 Kewmmm 4 Comm Cable (124-117) (234305755) X 1 FACTORY DATA LOAD 0:193:11 <1, 7' 1.
...................... 123 PROGRAM ROM REPLACEMENT PROCEDURE 7 U 7 7A ROM wfiifiifilfi 21
RAM CARD (M-255E) MAIN BOARD X 4 yyfi- F 22, 23
Setup: ------------ I ,. é - .11 .1 2
Keyboard mm: JACK BOARD/ MIDI BOARD y 17 1y 7,-r\- l~/: :- 4 711- I~ 24
3°"; if"; """" :4 BENDER BOARD/CARD BOARD myy-nf- IWJ- Wri- F 25
Oun arc es: _ _ ¢
Wm: ....... "123 SWITCH BOARD/POWER SUPPLY BOARD /\°$1I/7l<- F/Efi/T- I~ 26
Rhythm Sets (6A K9ys:B1-D7):- 4 IC DATA IC ;_9 27
-Button D (dual)
(with LED window) r- ______________________________________ _l
Bender panel (22495224) (E m $3%1mw w, W m m 2 w . m. WW? I
(22215870) Switch E11313] Ell: DENIM: I:I EHZIIZIIZHZIIZIEJEI |
SKHVBD 1006 z . $5. 1... w .W. I:] -,-.w-.-.
(13169697) 'ButtonL(dual) l EIIEHEHEI |:|l:| IIIIZIIZID III fil-H-lElfif-lr-IEI |
(22495230)
Front Panel ______________________________________ J
rButton S (quad) Switch
(22215632) (22495222) SKHVBD 1OOG / 1(-
Switch (13169697) / /
SKHVBD 1OOG /
(13169697) / /
/ , y-Card Slot FJack
" ' ' / p (22200188) YKB21 - 5010
Roland U'ED 255$: / / Qfixz4s4wg2/ZSOV Connector (13449145)
(13149108) 750809
(13429233)
1 ©© ©© © 0
11% FEQQ Adana LJ-ECI ~ Q
1 1 [ { l l 1 I T ~Card Escutcheon Jack - TRubber Foot
- AC Cord (22225333) YKF51 - 5041 (triplet) FF _ 018
' 12 1
Bender Unit |-LCD Cover X Elggx 5322:; Card Holder (13429274) 'Jack ( 359 39)
PB-A0105 (22045187) Side Panel R A (220v 43495116) (222205318) 71(321-5012
(23275916) LC%2Ugit (22215871) A (240W; 43495115) 7232309; (13449146)
DM 4 01 N - LY
Slide Knob (15029490) A (240VA . 23495114) (13429233)
NAOSB LCD Holder AC Cord Bushing
(22485187) (22205322) A 100v, 220V. 240VA
Slide VR Cover (12369533)
(22245468) A 117v. 240VE
(12369539)

lé Roland

Printed in Japan BA-2 (DP) 1

Page 2

'U - 20 JUNE 1989

EXPLODED MWHZI

3X6mm S.Tighl Binding FeBC
W/lnternal Tooth Washer

4 x 8mm STight
g Binding Fe.8C

4 X 8mm S.Tight

35$

513 Filancge Binding Fe.BC
ut e. m ? Sxfimrn B.Tight
3X6mm Binding Fe.BC
B,Tight

3X 6mmB.Tight
Binding Fe.Cm

N0. PART NAME PART No,
1 Front Panel 22215632
2 Bonom Cover 22025437
3 Rubber F001 12359139
4 Side Panel R 22215871
5 Power Transformer Holder 22205316
6 Bender Holder 22205315
7 Bender Panel 22215870
3 x 5mm any, a Bender Unit 23275915
Binding Fe.Cm 9 Knob 22485187
10 Power Switch A 13149108
11 AC Cord Bushing A

100V,220V 1 2369533

117V. 240VE. 24OVA 12369539
12 AC Cord Bushing Holder A
100V, 220V, 24OVA 22205357
117V. 24OVE 22205358

3 X 6mm PiTi ht
3 ><6mrn B.Tight Pan Fsicrfi
? Binding F91Crn

13 AC Cord A
100V 23495117

. , 3 X 5mm 3319*" 117v 23495113
3550' BlTight Binding F530 3 6 ~ t? Binding Fe.Cm 220V 23495116
Binding Fe.Crn gnd'i'rg :2? 24ove (with 13A Fuse) 23495115
E / - -2 240w 23495114
. 14 LCD um 15029490
3 X 8mm P,Tlght
4 _ / 15 LCD Cover 22045187
Pan FaCm 3X . _ 2 - P Fe.Cm
g Bisglm BFTnght \ \_ 3 X_6rnm B.Tight ? an 15 LCD Holder 22205322
n in9 e. m __ Binding Feiac
. - r _ 10mm BTight 17 Keyboard 7621320000
3 X_6rnm B.Tight \ 38". d Fe'Cm 18-1 Power Supply Board 7621308000
Binding Fe.Cm 3 X 8mm P,Tight I" mg ' 18~2 Primary Board

18- 3 Jamper Board

19 Power Transformer A 22455512U0
20 Card Escuicheon 22225338
21 Card Holder 22205318
22 Card Board 7621330000
23 Card Slot 22200188
\ /' 24 Main Holder 22205319
a) 81191: 516312129? 25 Main Shield Paper 22255290
Fe.Cm 26 Main Board 7621390000
27 MIDI Holder 22205340
28' 1 Jack Board 7621317000
23-2 MIDI Board
29- 1 Bender Board 7621331000
29- 2 Jamper Board
30 Slide VR Cover 22245468
31 Grounding Reaf 23455314
32 Switch Board 7621314000
33 Jack Holder 22205317
3 X 6mm B.Tight 34 Jack Shield Paper 22255239

Binding FeCm