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.

2
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.

3
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.

4
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

5
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

6
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

7
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

8
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

9
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

10
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

11
Jan. 2014 ME-80
Exploded View (Fig. B)
fig.bunkai-B.eps
Exploded View (Fig. B) Parts List
e
g
1
6
2
4
14
11 12
8
7
13
5
10
7
9
3
No. Part Code Part Name Description Q’ty
15100011395 PEDAL PLATE 1
2 5100011392 VR PEDAL 1
3 04560589 WASHER M6 T1 (H5039122) 1
4 5100012929 HEX BOLT M6X50 HALF THREAD BZC 1
5 04560601 CUSHION R (G2357111) 1
6 04560590 U-NUT M6 BZC 1
7 04560634 BOLT HOLDER (G2147874) 2
8 5100011394 PEDAL HOLDER 1
9 5100012831 REAR CUSHION 2
10 03561356 SHAFT STAY STAY 1
11 ******** NUT 1
12 ******** WASHER 1
13 01016167 11M/M ROTARY POTENTIOMETER RK11K1140AFG 10KX1 1
5100037426 PANEL SHEET ASSY 1
* This unit includes the following parts.
14 ******** EXP BOARD 1
******** PANEL BOARD Refer to Exploded View (All) (p. 6). 1
******** JACK BOARD Refer to Exploded View (All) (p. 6). 1
e 40011278 SCREW 3X8 BINDING TAPTITE P FE ZC 2
g 40127023 PLAIN WASHER 3X8X0.5 ZC 2

12
Jan. 2014 ME-80
Parts List
fig.-part1-e.eps
Safety Precautions:
The parts marked have
safety-related characteristics. Use
only listed parts for replacement.
Note: The parts marked # are new. (initial parts) The description “Q’ty” means a necessary number of the parts per one product.
Due to one or more of the following reasons,
parts with parts code ******** cannot be supplied as service parts.
• Part supplied only as a component in a complete assembly
• Copyright does not permit the part to be supplied
• Part is sold commercially
CASING
#5100037540 TOP COVER 1
5100002398 7 SEG COVER (G2567172R0) 1
5100011392 VR PEDAL 1
5100011395 PEDAL PLATE 1
# 5100037544 SW PEDAL ESCUTCHEON 4
# 5100037545 SW PEDAL FRONT 4
# 5100037546 SW PEDAL REAR 4
# 5100037541 BOTTOM COVER 1
04560878 BATTERY COVER RTC #G2027602R0 1
CHASSIS
#5100038986 BATTERY CASE SET 1
5100011394 PEDAL HOLDER 1
KNOB, BUTTON
03344934 R-KNOB (75D522N0R0) 30
12499175 BUTTON JSPUE0011A 1
# 5100037543 KEYTOP UNIT 1
SWITCH
01780101 TACT SWITCH SKQKABD010 4
03344723 TACT SWITCH SKQKAKD010 8
01899989 PUSH SWITCH SPUP19-2N-LB2 1
JACK, EXT TERMINAL
5100006474 3.5MM JACK HTJ-035-10ABZ(F3439911R0) 2
5100001342 6.5MM JACK HTJ-064-12IMP (13449155R1) 3
04908701 ADAPTOR JACK KM02018ABM1P(F3439875R0) 1
5100017587 USB CONNECTOR UBR23-4K5100(F3439933R0) 1
PWB ASSY
# 5100037421 MAIN BOARD ASSY 1
# 5100037426 PANEL SHEET ASSY 1
* This unit includes the following parts.
#******** PANEL BOARD 1
# ******** JACK BOARD 1
# ******** EXP BOARD 1
DIODE
5100001581 LED BL A-552SR-A B/W (F5029412R0) 1
5100001582 LED BL L-323SRDT (F5229810R0) 2
05015956 LED BL L-7104SRT (F5229820R0) 16
# 05015967 LED L-7104SGT 1
POTENTIOMETER
5100001449 POTENTIOMETER (F3279804R0) RD901F-40-125F-B50K-06D 1
# 5100037572 ROTARY POTENTIOMETER RD901F-40-125F-B50K-09D 1
5100001452 POTENTIOMETER (F3229205R0) RD901F-40-125F-B50K-0BD 1
# 5100001455 ROTARY POTENTIOMETER RD901F-40-125F-B50K-0DD 4
01016167 11M/M ROTARY POTENTIOMETER RK11K1140AFG 10KX1 1
# 5100037380 ROTARY POTENTIOMETER RV09BDF-40E1-125F-B50K-00D 23
WIRING, CABLE
#5100037403 FLAT CABLE SML2CD-28X80-BDX6(BL)-P1.0-S4 1
# 5100037404 WIRING W1 (EXP) 1
# 5100037405 WIRING W2 (INPUT) 1

13
Jan. 2014 ME-80
SCREWS
40342712 SCREW M3X6 PAN MACHINE W/SW+SMALL PW BZC 13
40017934 SCREW M3X6 PAN MACHINE W/SW+PW(L) FE ZC 1
40019123 SCREW 3X8 BINDING TAPTITE S BZC 5
40011278 SCREW 3X8 BINDING TAPTITE P FE ZC 14
40011312 SCREW 3X8 BINDING TAPTITE P FE BZC 4
5100012929 HEX BOLT M6X50 HALF THREAD BZC 1
04560590 U-NUT M6 BZC 1
5100003918 JACK NUT M9X12X2 NI RTC(H5039510R0) 3
40127023 PLAIN WASHER 3X8X0.5 ZC 2
5100003926 PLAIN WASHER 9X13.5X0.5T NI(H5039158R0) 3
04560589 WASHER M6 T1 (H5039122) 1
MISCELLANEOUS
5100003910 PEDAL FOOT H=7.6 (G2357126R0) 8
5100018071 POWER SW ESCUTCHEON G2207430R1 1
03344923 FOOT H=5 (G2357120R0) 5
04560634 BOLT HOLDER (G2147874) 2
22360712 CORD HOOK 236-712 1
5100003409 LED SPACER LEDS-8S 17
5100021018 PWB SPACER LBC-08-N2W 2
04560601 CUSHION R (G2357111) 1
5100012831 REAR CUSHION 2
03561356 SHAFT STAY STAY 1
04783901 JACK COVER (G2257203R0) 1
03129878 DC JACK HOLDER 1
04560712 SUPPORT SPRING (G2177103R0) 8
04892501 TERMINAL JH-8M3-T 1
40122645 NITTO FILAMENT TAPE #3883 W19MM 50M 60P (CM) -
ACCESSORIES (Standard)
#5100037407 OWNER’S MANUAL JAPANESE 1
# 5100037408 OWNER’S MANUAL ENGLISH 1

14
Jan. 2014 ME-80
Verifying the Version
1. Turn down the OUTPUT LEVEL control all the way counterclockwise
(minimum).
2. Hold down WRITE and press POWER for 1 second or longer.
The version appears on the 7-segment LED display.
Examples of version indication
3. After verifying the version, press POWER for 1 second or longer and
switch off the power.
Virus Check
Before connecting your computer to the ME-80, carry out a virus check
on the ME-80. If it has been infected by a virus, format it after obtaining
permission from the end user. For the formatting procedure, refer to
Performing a Factory Reset (p. 14).
Data Backup and Restore
Operations
User data (patches and setting data) can be backed up by using special
software for the ME-80.
You can download the special software from the Roland website (http://
www.roland.co.jp).
For detailed information on usage, carefully read the Readme included in
the downloadable file and use accordingly.
Performing a Factory Reset
1. Press POWER for 1 second or longer and start the unit normally.
2. Depress the pedal MEMORY/MANUAL several times to switch to the
manual mode.
The MANUAL LED lights up.
3. Hold down EDIT and depress pedal 3 .
FA appears on the 7-segment LED display.
4. Press WRITE .
The triangular LEDs to the left and right of the 7-segment LED display
flash.
5. Press WRITE a second time.
The 7-segment LED and the triangle LEDs on the left and right flash, and
a factory reset is executed.
* Never switch off the power while the Factory Reset operation is being executed.
When the factory reset finishes, the unit returns to the ordinary state at
startup.
Updating the System
Items Required
• Computer (running Windows)
• USB cable
• AC adaptor (PSA-***S)
• Update program (obtained via Service Net)
Procedure
* Never switch off the power to the unit while the update is in progress.
1. Import the update program (ME80ROM.BIN and ROMINFO.TXT) into
the computer.
2. Connect an AC adaptor (PSA series).
3. Hold down EXIT and WRITE and switch on the power.
Verify that UP appears on the 7-segment LED display.
4. Using the USB cable, connect the ME-80 and the computer.
Verify that the reading on the 7-segment LED display changes to U.P and
the dot is flashing.
5. Copy the update programs (ME80ROM.BIN and ROMINFO.TXT) to the
BOSS_ME80 folder recognized by the computer.
6. End the USB connection using the proper procedure for Windows.
The PEDAL FX LED lights up.
7. Press WRITE.
The update starts.
* Never switch off the power while the update operation is in progress.
When the MANUAL LED flashes and a screen like the one shown below
appears, the update has finished.
fig.sys-UP.eps
8. Switch off the power.
Test Mode
Items Required
• Oscilloscope
• Noise Meter
• Monitor Speakers
• Oscillator
• 47-kΩshort plug (standard monaural)
• Computer (running Windows)
• ME-80 driver
* Obtain this from one of the following web pages, and install it on the computer
described above.
http://www.roland.co.jp/
http://www.roland.com/
• Tester (Ammeter)
• Stabilized power supply
• Cables for connecting the items just described
• AA dry-cell batteries x 6
7-segment LED display Version
1.0 1.0
1.1 1.1
1.2 1.2

15
Jan. 2014 ME-80
Connection Diagram
fig.connection-e.eps
Entering the Test Mode
1. Refer to the connection diagram, connect the respective pieces of equipment.
2. Adjust the PEDAL FX control to FREEZE.
3. Turn down all controls other than the PEDAL FX control all the way counterclockwise (minimum).
* The Test Mode is not entered unless the control is turned all the way.
4. Hold down WRITE and CTL and press POWER for 1 second or longer.
5. When 80 appears on the 7-segment LED display, release your hand.
The version appears on the 7-segment LED display.
Quitting the Test Mode
Press POWER for 1 second or longer to switch off the power.
Skipping Test Items
To advance to the next test item, hold down EXIT and press WRITE. Returning to the previous test item is not possible.
Test Items
1. Version Check and Device Check (p. 16)
2. Current-consumption Check, Voltage Detection Check and SW/LED Check (p. 16)
3. VR Test (p. 17)
4. EXP VR Check (p. 21)
5. AUDIO Check (p. 21)
6. Battery Operation Check (p. 23)

16
Jan. 2014 ME-80
1. Version Check and Device Check
1. When entering the Test Mode, the device check begins automatically.
* When no USB cable is connected, an error is displayed.
The version appears on the 7-segment LED display and verify that the
triangular LED on the left is lighted.
fig.test1.eps
If the device check results in an error, the location of the error is shown
on the 7-segment LED display.
2. Disconnect the USB cable.
When correct detection occurs, execution automatically advances to the
next test item.
* If an error occurs, execution does not advance to the next test item.
2. Current-consumption Check, Voltage
Detection Check and SW/LED Check
1. Verify that all LEDs are lighted.
Verify that the voltage of the stabilized power supply is 9 V.
2. Measure the current consumption and verify that it is between 140 and
170 mA.
3. Set the voltage of the stabilized power supply to 6.5 V.
Verify that bt appears on the 7-segment LED display.
fig.test2-1.eps
4. Set the voltage of the stabilized power supply to 7.5 V.
Verify that the all LEDs light up.
5. Set the voltage of the stabilized power supply to 9.0 V.
6. Press the switches shown in the following chart in the sequence shown
under No.
When you press each switch, verify that the corresponding LED in the
chart goes dark.
Verify that a clicking sensation is felt when each switch is pressed.
7-segment LED darkening sequence
fig.test2-2.eps
After all have gone dark, press WRITE to advance to the next test item.
Display Location of Error
fig.error1.eps
Serial flash error
fig.error2.eps
App Check Sum error
fig.error3.eps
Updater Check Sum error
fig.error4.eps
USB error
fig.error5.eps
DSP iram0 error
fig.error6.eps
DSP iram1 error
fig.error7.eps
DSP pram0 error
fig.error8.eps
Internal ERAM error
fig.error9.eps
External ERAM error
fig.error10.eps
External ERAM error
fig.error11.eps
UDL Clock error
ig.error12.eps
MONO Test Failed
ffig.error13.eps
A1 Waveform Test Failed
fig.error14.eps
A1 MUTE Test Failed
fig.error15.eps
A1 NOISE Test Failed
fig.error16.eps
A2 Waveform Test Failed
fig.error17.eps
A2 MUTE Test Failed
ig.error18.eps
A2 NOISE Test Failed
ffig.error19.eps
A3 Waveform Test Failed
fig.error20.eps
A3 MUTE Test Failed
fig.error21.eps
A3 NOISE Test Failed
fig.error22.eps
A4 Waveform Test Failed
fig.error23.eps
A4 MUTE Test Failed
fig.error24.eps
A4 NOISE Test Failed
No. Operated switch Darkened LED
1 PEDAL 4 (DELAY) DELAY (Pedal)
2 PEDAL 3 (MOD) MOD (Pedal)
3 PEDAL 2 (OD/DS) OD/DS (Pedal)
4 PEDAL 1 (COMP) COMP (Pedal)
5BANK PEDAL BANK
6BANK PEDAL BANK
7 CTL PEDAL CTL
8 MEMORY/MANUAL PEDAL MANUAL
9 MEMORY/MANUAL PEDAL MEMORY
10 EDIT COMP/FX1
11 EDIT OD/DS
12 EDIT MOD
13 EDIT DELAY
14 EDIT PREAMP
15 EDIT EQ/FX2
16 EDIT REVERB
17 EDIT PEDAL FX
18 CTL 7-segment LED 1
19 CTL 7-segment LED 2
20 EXIT 7-segment LED 3
21 EXIT 7-segment LED 4
22 EXIT 7-segment LED 5
23 EXIT 7-segment LED 6
24 EXIT 7-segment LED 7
25 EXIT 7-segment LED 8
26 EXIT 7-segment LED 9
27 EXIT 7-segment LED 10
28 EXIT 7-segment LED 11
29 EXIT 7-segment LED 12
30 EXIT 7-segment LED 13
31 EXIT 7-segment LED 14
32 EXIT 7-segment LED 15
33 EXIT 7-segment LED 16
34 EXIT 7-segment LED 17
35 EXIT 7-segment LED 18
2 1
8 4 16 12
7 5 15
614
113
917
10 18
13

17
Jan. 2014 ME-80
3. VR Test
1. Verify that 11 is shown on the 7-segment LED display.
fig.test3-1.eps
* If 11 is not shown on, turn down all controls all the way counterclockwise (minimum) and verify that the reading changes to 11.
2. Operate the VR knobs shown in the following chart in the sequence shown under No. and verify the reading of the 7-segment LED display.
fig.test3-2.eps
1 2 3 4 5 6
No. VR knob VR position and reading on the 7-segment LED display
1 PREAMP TYPE fig.test3-3-e.eps
2 PREAMP GAIN fig.test3-4-e.eps
3 PREAMP BASS fig.test3-5-e.eps
4 PREAMP MIDDLE fig.test3-6-e.eps
5 PREAMP TREBLE fig.test3-7-e.eps
6 PREAMP LEVEL fig.test3-8-e.eps

18
Jan. 2014 ME-80
3. Verify that 71 is shown on the 7-segment LED display.
fig.test3-9.eps
7 8 9 10 11 12
No. VR knob VR position and reading on the 7-segment LED display
7 EQ/FX2 TYPE fig.test3-10-e.eps
8 EQ/FX2 BASS fig.test3-11-e.eps
9 EQ/FX2 MIDDLE fig.test3-12-e.eps
10 EQ/FX2 TREBLE fig.test3-13-e.eps
11 EQ/FX2 LEVEL fig.test3-14-e.eps
12 REVERB fig.test3-15-e.eps

19
Jan. 2014 ME-80
4. Verify that 31 is shown on the 7-segment LED display.
fig.test3-16.eps
16
17 18 19 20
14 1315
No. VR knob VR position and reading on the 7-segment LED display
13 DELAY TYPE fig.test3-17-e.eps
14 MOD TYPE fig.test3-18-e.eps
15 OD/DS TYPE fig.test3-19-e.eps
16 COMP/FX1 TYPE fig.test3-20-e.eps
17 COMP/FX1/SUSTAIN/
SENS/-1OCT
fig.test3-21-e.eps
18 COMP/FX1/ATTACK/
TONE/-2OCT
fig.test3-22-e.eps
19 COMP/FX1/LEVEL/
PEAK/DIRECT
fig.test3-23-e.eps
20 OD/DS DRIVE fig.test3-24-e.eps

20
Jan. 2014 ME-80
5. Verify that 1is shown on the 7-segment LED display.
fig.test3-25.eps
21 22 23 24 25 26 27 28
No. VR knob VR position and reading on the 7-segment LED display
21 OD/DS TONE fig.test3-26-e.eps
22 OD/DS LEVEL fig.test3-27-e.eps
23 MOD/RATE/KEY fig.test3-28-e.eps
24 MOD/DEPTH/HARMONY fig.test3-29-e.eps
25 MOD/E.LEVEL/RESONANCE fig.test3-30-e.eps
26 DELAY TIME fig.test3-31-e.eps
27 DELAY FEEDBACK fig.test3-32-e.eps
28 DELAY E.LEVEL fig.test3-33-e.eps