Roland ME-80 Operating and maintenance manual

SERVICE NOTES
Issued by RJA
Copyright © 2014 Roland Corporation
All rights reserved. No part of this publication may be reproduced in any form without the written permission
of Roland Corporation.
CC-OKN17058912E0
Jan. 2014 ME-80
Table of Contents
Cautionary Notes ..............................................................2
Specifications .....................................................................3
Location of Controls .........................................................4
Location of Controls Parts List........................................5
Exploded View (All) .........................................................6
Exploded View (All) Parts List........................................7
Disassembly Procedure ....................................................7
Important Notes on Assembly ........................................7
Plane View (1)....................................................................8
Plane View (1) Parts List ..................................................8
Plane View (2)....................................................................9
Plane View (2) Parts List ..................................................9
Exploded View (Fig. A)..................................................10
Exploded View (Fig. A) Parts List ................................10
Exploded View (Fig. B)...................................................11
Exploded View (Fig. B) Parts List.................................11
Parts List ...........................................................................12
Verifying the Version......................................................14
Virus Check......................................................................14
Data Backup and Restore Operations ..........................14
Performing a Factory Reset............................................14
Updating the System ......................................................14
Test Mode .........................................................................14
Block Diagram .................................................................24
Circuit Board (Main Board) ...........................................26
Circuit Diagram (Main Board: 1/4)..............................28
Circuit Diagram (Main Board: 2/4)..............................30
Circuit Diagram (Main Board: 3/4)..............................32
Circuit Diagram (Main Board: 4/4)..............................34
Circuit Board (Panel, Jack, EXP Board)........................36
Circuit Diagram (Panel Board)......................................38
Circuit Diagram (Jack, EXP Board)...............................40
Revise Information
May 22, 2014 p. 22, p. 23 Corrected errors.

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Jan. 2014 ME-80
Cautionary Notes
Before beginning the procedure, please read
through this document. The matters described may
differ according to the model.
Back Up User Data!
User data (patches and setting data) can be backed up by using special
software for the ME-80.
Refer to Data Backup and Restore Operations (p. 14) in the Service Notes
and save the data. After completing the procedure, restore the backed-up data
to the product.
Parts List
A component whose part code is ******** will not be supplied as a service part
because one of the following reasons applies.
• Because it is supplied as an assembled part (under a different part code).
• Because a number of circuit boards are grouped together and supplied as
a single circuit board (under a different part code).
• Because supply is prohibited due to copyright restrictions.
• Because reissuance is restricted.
• Because the part is made to order (at current market price).
• Because it is carried in electronic data on the Roland web site.
• Because it is a package or an accessory irrelevant to the function
maintenance of the main body.
• Because it can be replaced with an article on the market. (battery or etc.)
Circuit Diagram
In the circuit diagram, “NIU” is an abbreviation for “Not in Use,” and
“UnPop” is an abbreviation for “Unpopulated.” They both mean non-mounted
components. The circuit board and circuit board diagram show silk-screened
indications, but no components are mounted.

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Jan. 2014 ME-80
Specifications
BOSS ME-80: GUITAR MULTIPLE EFFECTS
AD Conversion
24 bits + AF method
* AF method (Adaptive Focus method) This is a proprietary method from Roland
& BOSS that vastly improves the signal-to-noise (SN) ratio of the AD and DA
converters.
DA Conversion
24 bits
Sampling Frequency
44.1 kHz
Patches
36 (User) + 36 (Preset)
Pedals
Pedal switch x 8
Expression pedal x 1
Nominal Input Level
GUITAR INPUT: -10 dBu
AUX IN: -20 dBu
Input Impedance
GUITAR INPUT: 1 M Ω
AUX IN: 27 k Ω
Nominal Output Level
Gt. AMP OUTPUT L/MONO, R: -10 dBu
REC OUT/PHONES: -10 dBu
Output Impedance
Gt. AMP OUTPUT L/MONO, R: 2 k Ω
REC OUT/PHONES: 44 Ω
Recommended Load Impedance
Gt. AMP OUTPUT L/MONO, R: 10 k Ω or greater
REC OUT/PHONES: 16 Ω or greater
Connectors
GUITAR INPUT jack: 1/4-inch phone type
Gt. AMP OUTPUT L/MONO, R jack: 1/4-inch phone type
REC OUT/PHONES jack: Stereo miniature phone type
AUX IN jack: Stereo miniature phone type
USB COMPUTER port: USB type B
DC IN jack
Display
7 segments, 2 digits LED
Power Supply
Alkaline battery (AA, LR6) x 6
or
Carbon-zinc battery (AA, R6) x 6
or
AC adaptor
Current Draw
200 mA
Expected battery life under continuous use
(These figures will vary depending on the actual
conditions of use.)
Alkaline: Approx. 7 hours
Carbon: Approx. 2 hours
Dimensions
447 (W) x 231 (D) x 70 (H) mm
17-5/8 (W) x 9-1/8 (D) x 2-13/16 (H) inches
Maximum height:
447 (W) x 231 (D) x 91 (H) mm
17-5/8 (W) x 9-1/8 (D) x 3-5/8 (H) inches
Weight (including battery)
3.6 kg
7 lbs 15 oz
Accessories
Owner’s Manual (#5100037408)
Alkaline battery (AA, LR6) (#********) x 6
“Read Me First” Leaflet (#********)
Option (sold separately)
AC adaptor: PSA series
* 0 dBu = 0.775 Vrms
* Printed matters will not be supplied after the end of the production. Then,
download the electronic file from the Roland web site.
* In the interest of product improvement, the specifications and/or appearance of
this unit are subject to change without prior notice.

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Jan. 2014 ME-80
Location of Controls
fig.panel.eps
1 2 512 3 512 12 87 1412
11
17 2424 21
20 2219
25 23
16
13 615
18
10
9
12
5
12
4
12

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Jan. 2014 ME-80
Location of Controls Parts List
No. Part Code Part Name Description Q’ty
1 5100037540 TOP COVER 1
2 03344934 R-KNOB (75D522N0R0) 1
5100037572 ROTARY POTENTIOMETER RD901F-40-125F-B50K-09D 1
3 03344934 R-KNOB (75D522N0R0) 1
5100001449 POTENTIOMETER (F3279804R0) RD901F-40-125F-B50K-06D 1
4 03344934 R-KNOB (75D522N0R0) 4
5100001455 ROTARY POTENTIOMETER RD901F-40-125F-B50K-0DD 4
5 03344934 R-KNOB (75D522N0R0) 23
5100037380 ROTARY POTENTIOMETER RV09BDF-40E1-125F-B50K-00D 23
6 03344934 R-KNOB (75D522N0R0) 1
5100001452 POTENTIOMETER (F3229205R0) RD901F-40-125F-B50K-0BD 1
7 5100037543 KEYTOP UNIT 1
01780101 TACT SWITCH SKQKABD010 4
8 5100001581 LED BL A-552SR-A B/W (F5029412R0) 1
5100001582 LED BL L-323SRDT (F5229810R0) 2
5100002398 7 SEG COVER (G2567172R0) 1
9 5100037545 SW PEDAL FRONT 4
5100003910 PEDAL FOOT H=7.6 (G2357126R0) 4
04560712 SUPPORT SPRING (G2177103R0) 4
10 5100037546 SW PEDAL REAR 4
5100003910 PEDAL FOOT H=7.6 (G2357126R0) 4
04560712 SUPPORT SPRING (G2177103R0) 4
11 5100037544 SW PEDAL ESCUTCHEON 4
12 05015956 LED BL L-7104SRT (F5229820R0) 16
5100003409 LED SPACER LEDS-8S 16
13 05015967 LED L-7104SGT 1
5100003409 LED SPACER LEDS-8S 1
14 5100011395 PEDAL PLATE 1
15 5100011392 VR PEDAL 1
16 5100001342 6.5MM JACK HTJ-064-12IMP (13449155R1) 2
5100003918 JACK NUT M9X12X2 NI RTC(H5039510R0) 2
5100003926 PLAIN WASHER 9X13.5X0.5T NI(H5039158R0) 2
17 5100001342 6.5MM JACK HTJ-064-12IMP (13449155R1) 1
5100003918 JACK NUT M9X12X2 NI RTC(H5039510R0) 1
5100003926 PLAIN WASHER 9X13.5X0.5T NI(H5039158R0) 1
04783901 JACK COVER (G2257203R0) 1
18 5100006474 3.5MM JACK HTJ-035-10ABZ(F3439911R0) 2
19 5100017587 USB CONNECTOR UBR23-4K5100(F3439933R0) 1
20 5100018071 POWER SW ESCUTCHEON G2207430R1 1
21 12499175 BUTTON JSPUE0011A 1
01899989 PUSH SWITCH SPUP19-2N-LB2 1
22 04908701 ADAPTOR JACK KM02018ABM1P(F3439875R0) 1
23 22360712 CORD HOOK 236-712 1
40019123 SCREW 3X8 BINDING TAPTITE S BZC 1
24 40342712 SCREW M3X6 PAN MACHINE W/SW+SMALL PW BZC 2
25 40019123 SCREW 3X8 BINDING TAPTITE S BZC 1
03129878 DC JACK HOLDER 1

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Jan. 2014 ME-80
Exploded View (All)
fig.bunkai-all.eps
1
2
2
3
10
5
9
19
23
15
11
25
13
16
17
22
21
12
14
20
24
18 24
6
4
7
8
Refer to Fig. B
Refer to Fig. A
View 1
View 2 View 3
View 4

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Jan. 2014 ME-80
Exploded View (All) Parts List
Disassembly Procedure
1. Remove screws d (11) in View 2 ( Plane View (1) (p. 8)).
2. Lift the Bottom Cover slightly and detach the wiring (1) connecting the
Main Board and the Battery Case Set.
Important Notes on
Assembly
On the ME-80, not all potentiometers use potentiometer nuts.
Nuts are used only at the locations shown below.
When reassembling the unit, carry out assembly with reference to the
figure below.
fig.kumitate.eps
No. Part Code Part Name Description Q’ty
1 03344934 R-KNOB (75D522N0R0) 30
2 ******** NUT attached to VR 13
3 ******** NUT attached to VR 7
4 22360712 CORD HOOK 236-712 1
5 5100018071 POWER SW ESCUTCHEON G2207430R1 1
6 12499175 BUTTON JSPUE0011A 1
7 5100003918 JACK NUT M9X12X2 NI RTC(H5039510R0) 3
8 5100003926 PLAIN WASHER 9X13.5X0.5T NI(H5039158R0) 3
9 5100037540 TOP COVER 1
10 ******** NUT 1
11 ******** WASHER 1
5100037426 PANEL SHEET ASSY 1
* This unit includes the following parts.
12 ******** EXP BOARD 1
13 ******** PANEL BOARD 1
14 ******** JACK BOARD 1
15 5100037421 MAIN BOARD ASSY 1
16 5100002398 7 SEG COVER (G2567172R0) 1
17 5100037543 KEYTOP UNIT 1
18 5100021018 PWB SPACER LBC-08-N2W 2
19 5100037541 BOTTOM COVER 1
20 5100038986 BATTERY CASE SET 1
21 04560878 BATTERY COVER RTC #G2027602R0 1
22 03344923 FOOT H=5 (G2357120R0) 5
23 5100037403 FLAT CABLE SML2CD-28X80-BDX6(BL)-P1.0-S4 1
24 40122645 NITTO FILAMENT TAPE #3883 W19MM 50M 60P (CM) -
25 03561356 SHAFT STAY STAY 1

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Jan. 2014 ME-80
Plane View (1)
fig.heimen1.eps
Plane View (1) Parts List
View 1
View 2
a
c
d
d
d
b
View 1
View 2
No. Part Code Part Name Description Q’ty
a40019123 SCREW 3X8 BINDING TAPTITE S BZC 2
b 40342712 SCREW M3X6 PAN MACHINE W/SW+SMALL PW BZC 2
No. Part Code Part Name Description Q’ty
c40011312 SCREW 3X8 BINDING TAPTITE P FE BZC 4
d 40342712 SCREW M3X6 PAN MACHINE W/SW+SMALL PW BZC 11

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Jan. 2014 ME-80
Plane View (2)
fig.heimen2.eps
Plane View (2) Parts List
View 3
View 4
e
f
ea
1
1
View 3
View 4
No. Part Code Part Name Description Q’ty
e 40011278 SCREW 3X8 BINDING TAPTITE P FE ZC 8
f 40017934 SCREW M3X6 PAN MACHINE W/SW+PW(L) FE ZC 1
1 40122645 NITTO FILAMENT TAPE #3883 W19MM 50M 60P (CM) -
No. Part Code Part Name Description Q’ty
a40019123 SCREW 3X8 BINDING TAPTITE S BZC 3
e 40011278 SCREW 3X8 BINDING TAPTITE P FE ZC 4

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Jan. 2014 ME-80
Exploded View (Fig. A)
fig.bunkai-A.eps
Exploded View (Fig. A) Parts List
4
3
3
2
1
5
No. Part Code Part Name Description Q’ty
15100037546 SW PEDAL REAR 4
2 5100037545 SW PEDAL FRONT 4
3 04560712 SUPPORT SPRING (G2177103R0) 8
4 5100037544 SW PEDAL ESCUTCHEON 4
5 5100003910 PEDAL FOOT H=7.6 (G2357126R0) 8