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20

Troubleshooting

Problem

Items to check

Action

No sound / volume too low

Are the connection cables broken?

Try using a different set of connection cables.

- - -

Is the ES-8 correctly connected to the other devices?

Check connections with the other devices.

p. 2

Is the connected amp turned off, or the volume 

lowered?

Check the settings of your amp/mixer system.

- - -

Could the volume pedal have lowered the level?

Advance the volume pedal.

- - -

Could mute be turned on?

Press the [MUTE] switch to turn mute off.

p. 4

Is each effects set correctly?

Check the settings of each effects.

- - -

Is the power to the external device connected to the 

SEND 1–8 and RTN 1–8 jacks off, or is the volume of the 

device turned down?

Check the settings for the connected device.

- - -

Could you be using a connection cable that contains 

a resistor?

Use a connection cable that does not contain a resistor.

- - -

Could you have turned off Input Buf and connected an 

effect loop in parallel?

Depending on the impedance of the signal, the volume may 

diminish. If you use a parallel connection, turn on Input Buf.

p. 9

Oscillating sound occurs

Could the gain value or the value of a volume-related 

parameter be too high due to the settings of a 

connected amp or effect unit?

Lower these values.

- - -

Sound switches on its own

Could an external MIDI device be set to modify the 

parameters?

Check the assignment settings.

p. 10

Is “INT” or “WAV” set as the Src in Assign?

When the Src is set to “INT” or “WAV,” the effect parameter set as 

the Assign Target changes automatically.

Patch does not change

Is something other than the Play screen shown in the 

display?

On the ES-8, patches can be selected only when the Play screen is 

displayed. Press the [DISPLAY/EXIT] button several times to return 

to the Play screen.

p. 5

Could you have changed the function of the [BANK 

I

]

[BANK 

H

] switches or the number switches [1]–[8]?

If the Func setting is set to OFF, change it to BnkD, BnkU, or 

Num1–8.

p. 10

Sound does not change when you 

switch patches

Are the loop settings of each patch correct?

Check the loop settings.

p. 9

Can’t change the settings of a 

connected effect unit

Is the EXT CTL jack connected?
Is the cable the correct type (mono, TRS)?

Check the cable type and connection.

p. 3

Can’t specify Carry Over / Can’t 

specify parallel connection

Could you already be using both mixers?

There are two internal mixers.
Turn off one of the mixers you’re using, or change the stereo return 

to mono return.

p. 7
p. 12

Could you have specified Carry Over or parallel 

connection for a stereo-return loop?

Can’t use a controller to modify a 

parameter

Could the loop be turned off?

Turn the loop on.

p. 6

Is the Preference setting set to anything other than 

PAT?

To change the settings for an individual patch, set the Preference 

setting to PAT. To change a specific setting for all patches in 

common, select a setting other than PAT.

p. 12

Do the MIDI channel settings of both devices match?

Make sure that the MIDI channels of both devices match.

p. 10
p. 12

Do the controller number settings of both devices 

match?

Make sure that the controller number of both devices match.

When using an expression pedal, 

the effect changes depending on 

the patch

The effect of using an expression pedal will differ 

depending on the patch.

Try out the effect beforehand.

- - -

MIDI messages are not 

transmitted/received

Are the MIDI cables broken?

Try another set of MIDI cables.

- - -

Are the MIDI cables connected correctly?

Connect MIDI IN and MIDI OUT.

- - -

Do the MIDI channel settings match?

Match the MIDI channel settings.
Receive channel of the ES-8: MIDI Setting 

0

 RxCh

Transmit channel of the ES-8: Patch MIDI 1–8 

0

 Ch

p. 12
p. 10

Hum is heard

Could the amp’s send/return be connected to the 

volume loop?

In some cases, you can minimize hum by disconnecting pin 

number 1 of the SEND VOL jack from the ES-8’s ground. Try 

changing the Vol Loop Lift setting.

p. 12

Effect not applied

Could the effect switch be off?

Check the on/off setting of each effect.

- - -

Error Messages

Display

Problem

Action

MIDI BUFFER FULL!

The data cannot be processed correctly due to the high 

volume of MIDI messages.

Reduce the volume of MIDI messages transmitted to the ES-8.

- - -

Reduce the tempo of the transmitting MIDI device.

MIDI OFFLINE!

Transmissions from the connected device have been 

interrupted. This message also appears when the 

power to the connected device has been turned off. It 

does not indicate damage.

Check to make sure no cable is disconnected and that there are 

no shorts.

- - -

DATA WRITE ERROR!

Writing to the memory for storage of user data failed.

The unit may be damaged. Consult the nearest Roland service 

center.

- - -

LOCKED!

The buttons are locked.

Turn “Lock function” off.

p. 4

NO MORE MIXERS ARE AVAILABLE!

Both of the two internal mixers are already in use.

Check the Loop Structure settings.

p. 7, p. 9

SYSTEM ERROR!

A problem has occurred in the system.

Contact your dealer or a nearby Roland service center.

- - -

MEMORY DAMAGED!

It is possible that the contents of memory have been 

damaged.

Please execute a Factory Reset. If this does not resolve the 

problem, contact your dealer or a nearby Roland service center.

- - -

Appendix

Summary of Contents for ES-8

Page 1: ... Copying a Bank Bank Copy 13 Exchanging Banks Bank Exchange 13 Transmitting Data to an External MIDI Device Bulk Dump 13 Restoring the Factory Settings Factory Reset 13 Advanced Applications 14 Adjusting the Level of Each Patch 14 Switching Between Two Guitars 14 Switching Between Two Amps 15 Switching the Amp s Channels 15 Connecting with the Four Cable Method Also Switching the Amp s Channels 15...

Page 2: ...ck is output SEND 8L R RTN 8L R jacks These jacks provide a stereo send stereo return effect loop If the stereo output is connected as the last stage the output is stereo If the last effect loop is mono send only the signal received at the RTN 8L jack is output A mono send return effect can also be connected here Connect it to the SEND 8L RTN 7L jacks In this case if a stereo return effect loop or...

Page 3: ...ings p 12 DC IN jack Connect the included AC adaptor here The power turns on when you plug the connected AC adaptor into an AC outlet TIP RING CTL 1 CTL 3 CTL 5 CTL 2 CTL 4 CTL 6 SEND RTN EXP CTL IN jacks These let you control effect units or amps that are connected to the EXT CTL jacks To use these as EXP 1 2 jacks Connect an expression pedal such as the Roland EV 5 To use these as CTL 1 2 3 4 ja...

Page 4: ...t is output without change You can also assign a different function to each switch p 10 MEMO Lock function When you press the DISPLAY EXIT button and ENTER button simultaneously to activate Lock function all buttons will be disabled This prevents settings from being changed when you inadvertently press a button The Lock function turns off when you press the two buttons simultaneously once again ED...

Page 5: ... equipment in the wrong order you risk causing malfunction or equipment failure When powering up Turn on the power to your guitar amp last When powering down Turn off the power to your guitar amp first This unit is equipped with a protection circuit A brief interval a few seconds after turning the unit on is required before it will operate normally Switching the Play Screen The screen that appears...

Page 6: ...fore performing the patch write operation 5 5 When you perform the patch write operation the patch that was in the save destination is lost 1 Press the WRITE button 00 1 Patch name 2 Use the K J buttons and buttons to select the save destination bank number and patch number You can also use the BANK I BANK H switches and number switches 1 8 to select the bank number and patch number 3 Press the EN...

Page 7: ...use the mixers will make it even more enjoyable to create patches sounds NOTE The same mixers are used for parallel connections and for Carry Over This means that depending on the settings you might not be able to use a parallel connection or that Carry Over might not work Parallel connection 5 5 If the effect units are mono you can make parallel connections in two places simultaneously Mixer 5 5 ...

Page 8: ...For the returns of effect loops 7 and 8 set the system setting Preference to select mono return or stereo return p 12 Making a Parallel Connection Example Connect effect loops 2 and 3 in parallel 4 Use the K J buttons to move the cursor to the merge point of the parallel connection and press the ENTER button Move the cursor between effect loops 2 and 4 and press the ENTER button the parallel loop ...

Page 9: ...ration refer to Changing the Effect Loop Settings p 8 5 5 Connection order of each effect loop 5 5 Parallel connection settings 5 5 Connection position of volume loop 5 5 Carry Over setting Depending on the settings there are cases in which parallel connection is not possible or in which Carry Over does not work 8 7 5 4 2 1 V 3 _ CTL1 6 Specify the control signals that are sent from the EXT CTL CT...

Page 10: ... 12 Sw Turns the assignment on off ON OFF Src Specifies the controller source CTL1 4 A footswitch connected to a CTL IN jack BnkD BnkU BANK I switch BANK H switch MemM MEMORY MANUAL switch Mute MUTE switch Num1 8 Number switch 1 8 CNum Currently selected number switch EXP1 2 An expression pedal connected to a CTL IN jack INT Internal pedal The virtual expression pedal will begin operating when sta...

Page 11: ... IN 1 2 IN 1 IN 2 Select the input 1 2 OUT 1 2 1 2 OUT 1 L OUT 2 R OUT 1 L OUT 2 R Select the output 1 2 1 2 When Cate is set to MODE MemM MEM MAN Switches between memory mode and manual mode MEM MAN Mute OFF ON Mute on off OFF ON Byps OFF ON Bypass on off OFF ON When Cate is set to MIDI 000 127 0 127 The control change value is transmitted from the MIDI OUT connector 0 127 When Cate is set to BPM...

Page 12: ...rn Specify whether effect loops 7 and 8 are mono return or stereo return If this parameter is not set correctly you might not obtain the expected effect when using parallel connection or the Carry Over function MONO STEREO Vol Loop Lift Disconnects the SEND VOL jacks No 1 pin from the ES 8 s ground Set this to LIFT if a ground loop or similar problem is causing output of hum or noise Normally this...

Page 13: ...e settings or to save settings to MIDI sequencers and other such devices This transmission of data is referred to as bulk dump System settings settings of the selected patch can be transmitted When Transmitting Data to Another ES 8 Make connections as shown in the illustration below and set the transmitting and receiving units to the same device ID p 12 Transmitting unit Receiving unit IN OUT When...

Page 14: ...2 R Guitar AMP 1 AMP 2 Output Buf REV DLY TRE CHO PH DIST OD COMP VOL Guitar AMP 2 AMP 1 COMP DIST CHO DLY VOL OD PH TRE REV Switching BetweenTwo Guitars Parameter Value Reference Patch parameter Input Sel 1 2 p 9 Output Buf Input Buf OUT 1 L OUT 2 R Guitar 1 AMP 1 AMP 2 Output Buf REV DLY TRE CHO PH DIST OD COMP Guitar 2 AMP 2 AMP 1 COMP DIST CHO DLY OD PH TRE REV Guitar 1 Guitar 2 ...

Page 15: ...o AMP 2 Control Amp channel switching COMP DIST CHO DLY VOL OD PH TRE REV Connecting with the Four Cable Method Also Switching the Amp s Channels Parameter Value Reference Patch parameter CTL1 6 ON OFF p 9 System setting Play Option CTL1 6 LAT PLS p 12 Reducing Hum Parameter Value Reference System setting Preference Vol Loop Lift LIFT GND p 12 Input Buf Input Guitar PH DIST OD COMP AMP Output Buf ...

Page 16: ...1 To PH 3 EXP CTL COMP DIST CHO DLY VOL OD PH 3 TRE REV Using an Expression Pedal to Control the BOSS PH 3 s Rate Parameter Value Reference Patch parameter CTL EXP Assign 1 Sw ON p 10 Src EXP1 Mod MOM Cate Target E CTL EXP1 Min Max 0 127 Act L Act H 0 127 Output Buf Input Buf OUT 1 L OUT 2 R Guitar AMP 1 AMP 2 Output Buf REV DLY TRE CHO DIST OD COMP VOL PH 3 EXP CTL From EXT CTL EXP 1 Guitar AMP 2...

Page 17: ...EV TRE CHO PH DIST OD COMP VOL Delay On Off DLY Guitar AMP 2 AMP 1 COMP DIST CHO DLY VOL OD PH TRE REV Using Number Switch 7 to Change the DelayTime Parameter Value Reference Patch parameter Assign 1 Sw ON p 10 Src Num7 Mod MOM Cate Target E CTL CTL1 Min Max OFF ON Act L Act H 0 127 NUMBER 7 Func OFF Output Buf Input Buf OUT 1 L OUT 2 R Guitar AMP 1 AMP 2 Output Buf REV TRE CHO PH DIST OD COMP VOL...

Page 18: ...E CHO PH DIST OD COMP VOL Chorus On DLY Off Guitar AMP 2 AMP 1 COMP DIST CHO DLY VOL OD PH TRE REV UsingTapTempo to Set the DelayTime of Each Patch Parameter Value Reference System setting Play Option CTL1 TP2 TP4 p 12 Patch parameter CTL1 ª 20 500 p 9 Master BPM 20 500 Output Buf Input Buf OUT 1 L OUT 2 R Guitar AMP 1 AMP 2 Output Buf REV TRE CHO PH DIST OD COMP VOL From EXT CTL CTL 1 DLY A delay...

Page 19: ...OUT DLY BOSS GT 100 MIDI IN Guitar AMP 2 AMP 1 COMP DIST CHO DLY VOL OD GT 100 TRE REV To BOSS GT 100 Connecting aWah or Fuzz Input Buffer Off The sound of some wah or fuzz units may change if they are connected after a buffer In this case turn the ES 8 s input buffer Input Buf off Output Buf Input Buf OUT 1 L OUT 2 R Guitar AMP 1 AMP 2 Output Buf DLY TRE CHO PH DIST OD VOL WAH REV FUZZ Guitar AMP...

Page 20: ... specified Carry Over or parallel connection for a stereo return loop Can t use a controller to modify a parameter Could the loop be turned off Turn the loop on p 6 Is the Preference setting set to anything other than PAT To change the settings for an individual patch set the Preference setting to PAT To change a specific setting for all patches in common select a setting other than PAT p 12 Do th...

Page 21: ... children To prevent accidental ingestion of the parts listed below always keep them out of the reach of small children Included Parts Screw p 5 Handle the ground terminal carefully If you remove the screw from the ground terminal be sure to replace it don t leave it lying around where it could accidently be swallowed by small children When refastening the screw make that it is firmly fastened so ...

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