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Editing: MENU

System Settings

Here you can make settings for input/output, USB, and MIDI, as 

well as assign the functions of the [CTL] switches and the [ON/OFF] 

switch, and of an external pedal if connected.

For details on the parameter, refer to the “SY-300 Parameter Guide” (PDF file).

Specifying the Operation of the [ON/OFF] 

Switch

Here you can specify how output occurs when you select the OFF 

setting of the top panel [ON/OFF] switch.

1. 

Choose [MENU] 

0

 “SYSTEM” 

0

 “OUTPUT.”

2. 

Use the [SELECT] knob or PAGE [

K

] [

J

] buttons to access 

the first page.

3. 

Use parameter knobs [1] and [2] to select the operation 

of the MAIN OUTPUT jacks and the SUB OUTPUT jacks 

respectively.

Parameter

Value

Explanation

MAINOUT 

OFFMOD

Parameter 

knob [1]

BYPASS

All OSC and FX turn off, and only the dry sound of the 

guitar input is output to the MAIN OUTPUT jacks.

SYNTH OFF

All OSC turn off. FX and the FX connection order 

settings continue to apply. The sound of an external 

effect unit connected between THRU/RETURN is output.

SUBOUT 

OFFMOD 

Parameter 

knob [2]

MUTE

No sound is output.

BYPASS

All OSC and FX turn off, and only the dry sound of the 

guitar input is output to the SUB OUTPUT jacks.

ALWAYS ON

The operation of the ON/OFF switch is ignored. All OSC 

and FX remain on.

*  If MAINOUT OFFMOD is set to SYNTH OFF, the synth 

sound is not heard from SUBOUT either.

4. 

Press the [EXIT] button a number of times.

You are returned to the Play screen.

Assigning Favorite Parameters to Parameter 

Knobs [1]–[4]

You can assign the parameters that are controlled by parameter 

knobs [1]–[4] when a Quick Page (p. 3) is displayed.

1. 

Choose [MENU] 

0

 “SYSTEM” 

0

 “QUICK KNOB.”

2. 

Use parameter knobs [1]–[4] and PAGE [

K

] [

J

] buttons to 

specify the parameters to be controlled by each knob.

Parameter

Explanation

KNOB1–8 TARGET CATEGORY

Select the parameter category.

KNOB1–8 TARGET 

Select the parameter.

*  KNOB1–4: The knobs of Quick Page 1
*  KNOB5–8: The knobs of Quick Page 2

Adjusting the Contrast (Brightness) of the 

Display

You can adjust the brightness of the display.

1. 

Choose [MENU] 

0

 “SYSTEM” 

0

 “LCD.”

2. 

Adjust the value with the parameter knob [1].

Raising the value (1-16) increases the brightness.

Turning Off the Auto Off Function

The SY-300 can turn off its power automatically. The power will 

turn off automatically when 10 hours have passed since you last 

played or operated the unit. The display will show a message 

approximately 15 minutes before the power turns off.
With the factory settings, this function is turned “ON” (power-off 

in 10 hours). If you want to have the power remain on all the time, 

turn it “OFF.”

1. 

Choose [MENU] 

0

 “SYSTEM” 

0

 “AUTO OFF.”

2. 

Use parameter knob [1] to select “OFF.”

3. 

Press the [EXIT] button a number of times.

Preventing Inadvertent Operation During 

Performance (Tuner Lock, Select Knob Lock)

You can prevent inadvertent operation of the knobs or switches 

from changing patches or entering the tuner screen while the play 

screen is displayed.

1. 

Choose [MENU] 

0

 “SYSTEM” 

0

 “LOCK.”

2. 

Use parameter knobs [1] and [2] to turn the setting on/off.

Parameter

Explanation

TUNER LOCK

Prevents the tuner screen from appearing even if switches [

I

/CTL2] 

and [

H

/CTL3] are pressed simultaneously.

SELECT KNOB 

LOCK

Disables [SELECT] knob operation so that patches will not change.

3. 

Press the [EXIT] button a number of times.

Restoring the Factory Default Settings 

(Factory Reset)

Restoring the SY-300’s settings to their original factory default 

settings is referred to as “Factory Reset.”
You may restore all settings to their factory-set condition, or you 

may specify the settings that you want to restore.

*  When you execute “Factory Reset,” the settings you made will 

be lost. Save the data you need to your computer using the 

dedicated software.

1. 

Choose [MENU] 

0

 “SYSTEM” 

0

 “FACTORY RESET.”

2. 

Use the parameter knob [1] to specify the areas that will 

be returned to their factory-set state.

Value

Explanation

PATCH

All settings

SYSTEM

System parameter settings

PATCH

User patch settings

3. 

Press the [WRITE] button.

If you decide to cancel without executing, press the [EXIT] button.

4. 

If you want to proceed with the factory reset, press the 

[SELECT] knob.

Once the Factory Reset is complete, you are returned to the Play 

screen.

Summary of Contents for SY-300

Page 1: ...ted software You can control the SY 300 edit tones and manage patches using dedicated software You can also download a wide variety of patches from BOSS TONE CENTRAL our dedicated patch download website p 10 Getting Ready 2 Connect the Equipment 2 Basic Operation Guide 3 Switching the Display 3 Playing 4 Playing a Patch 4 Selecting a Patch 4 Editing Basic Operation 5 Select the Effect That You Wan...

Page 2: ... lost when the power is turned off If you have any settings that you want to keep you should save them beforehand To restore power turn the power on again To prevent malfunction and equipment failure always turn down the volume and turn off all the units before making any connections USB O port Use a commercially available USB 2 0 cable to connect this port to your computer It can be used to trans...

Page 3: ...ing Favorite Parameters to the Switches and External Pedals p 9 Switching the guitar synthesizer on and off Switches the guitar synthesizer on and off Adjusting the volume This adjusts the volume Using theTuner To enter the tuner screen press the I CTL2 H CTL3 switches simultaneously 1 Press the I CTL2 H CTL3 switches simultaneously From the play screen p 4 you can also enter the tuner screen by p...

Page 4: ...s of patches preset patches and user patches Preset patches cannot be overwritten About the Play screen The screen that appears after you turn on the power is called the Play screen MASTER BPM PATCH EXTENT Patch number Patch name Display Explanation PATCH EXTENT This lets you restrict the range of patches that can be selected from the Play screen You can use this to prevent unwanted patches from b...

Page 5: ...ursor and choose an item SELECT knob 2 After you ve chosen an item press the SELECT knob Pressing the SELECT knob makes it function as the ENTER button Edit theValue 1 Change the displayed value with parameter knobs 1 4 Parameter knobs 1 4 If the parameters extend across more than one page use the PAGE K J buttons or the SELECT knob to move between pages 2 Press the EXIT button a number of times Y...

Page 6: ... function The SY 300 lets you individually specify the range of pitches in which OSC1 3 produce sound As on a keyboard synthesizer you can play different sounds in different pitch ranges or layer different combinations of sounds 1 Choose SYNTH FX 0 OSC1 0 LAYER The edit screen appears 2 Use parameter knobs 1 4 to edit the values Knob Parameter Value Explanation 1 L FADE 1 60 Specifies the area ove...

Page 7: ...acter to the sound ISOLATOR ISO An effect that cuts the sound of the specified region LIMITER LIM Attenuates loud input levels to prevent distortion LO FI LF An effect that produces a lo fi sound OD DS OD Distorts the sound to create long sustain PAN With the volume level of the left and right sides alternately changing when playing sound in stereo you can get an effect that makes the guitar sound...

Page 8: ...rightness of the display 1 Choose MENU 0 SYSTEM 0 LCD 2 Adjust the value with the parameter knob 1 Raising the value 1 16 increases the brightness Turning Off the Auto Off Function The SY 300 can turn off its power automatically The power will turn off automatically when 10 hours have passed since you last played or operated the unit The display will show a message approximately 15 minutes before ...

Page 9: ...atch number decrements by one each time you step on the switch CTL2 Use as CTL2 H CTL3 PATCH UP The patch number increments by one each time you step on the switch CTL3 Use as CTL3 Connecting the SY 300 with an External MIDI Device On the SY 300 you can use MIDI to perform the following operations Operations from the SY 300 Operation Explanation Transmit program change messages When you select a p...

Page 10: ...e 5 5 Edit patch settings 5 5 Name patches 5 5 Organize patches in order and switch them around 5 5 Back up patches and system settings and return to the backed up settings 5 5 Display the SY 300 Parameter Guide PDF file on your computer USB Audio Flow The SY 300 lets you choose one of the four USB audio routings as appropriate for your needs 1 Choose MENU 0 SYSTEM 0 USB 2 Use parameter knobs 1 4 ...

Page 11: ...ymbols ALWAYS OBSERVE THE FOLLOWING Repairs and Data Before sending the unit away for repairs be sure to make a backup of the data stored within it or you may prefer to write down the needed information Although we will do our utmost to preserve the data stored in your unit when we carry out repairs in some cases such as when the memory section is physically damaged restoration of the stored conte...

Page 12: ...OUTPUT 10 dBu Output Impedance MAIN OUTPUT 2 k ohms SUB OUTPUT 2 k ohms LCD Graphic LCD 132 x 64 dots backlit LCD Connectors INPUT jack 1 4 inch phone type THRU jack 1 4 inch phone type RETURN jack 1 4 inch phone type MAIN OUTPUT R MONO jack 1 4 inch phone type MAIN OUTPUT L PHONES jack 1 4 inch phone type SUB OUTPUT R MONO jack 1 4 inch phone type SUB OUTPUT L jack 1 4 inch phone type MIDI IN OUT...

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