You may prefer to use headphones, so you do not need to be concerned about those around you (especially when it is late at night). 7 Panel Description 2 1 8 5 3 7 10 11 4-OUTPUT BYPASS Chromatic Tuner TU-2 12 13 1. DC9V In jack An AC adapter (BOSS PSA-Series: sold separately) can be connected to this jack. If an AC adapter is used, you will be able to play for extended periods without worrying about battery life. * As soon as you connect the AC adapter, the unit is turned ON. 2. DC 9V Out jack When an AC adapter Is used, you can connect a PCS-20A parallel DC cord (sold separately) to supply power to other 9V effect units. * Power, cannot be supplied when the TU-2 is running on batteries. * When using a DC 9 V Out jack, make sure that the total current consumption of the TU-2 and other effects being supplied does not exceed 200 mA. 3. Meter The meter indicates the pitch deviation of the input sound from the note name or string number that is shown in the note name/ string number indicator. CENT display The LED that is lit will be further toward the left as the input pitch is flat, and further toward the right as the input pitch is sharp. The pitch is correct when the center (green) indicator of the meter is lit. STREAM display Deviation of the input pitch will be shown by a flow of lights toward left or right. The lights will flow toward the left if the input pitch is flat, and toward the right if the input pitch is sharp. As the pitch deviation decreases, the flow will become slower, and the flow will stop when the pitch is correct. 4. Note name/String number indicator In Chromatic mode, this indicates the note name. In Guitar/Bass mode, this indicates the string number. 5. Tuning guide indicators These will light to roughly indicate the tuning. 'l 1 < The pitch is flat > ^<3C The pitch is sharp \ > !, \ 1 1, -'/ 1 ' ' ! 1 ' The pitch is correct (within +/-3 cents) 6. MODE select switch This switch changes the tuning mode. When this switch is first pressed, the meter will blink to indicate the current mode. If you press the switch again, the meter will cycle through the following modes, and the corresponding indicator will light. • Bass Double Flat — Bass Flat Bass Chromatic Guitar — Guitar Flat Guitar Double Flat 10 7. STREAM/CENT select switch This switches the meter display method. The meter will indicate the selected display method for approximately two seconds after the method has been switched. 8. CHECK indicator This shows the Tuner On/Off status and also serves as a battery check indicator. This indicator will light when the tuner is on. If the indicator is dim or fails to light when the tuner is on, the battery has run down, and should be replaced with a new battery as soon as possible. For the procedure, refer to "Changing the battery" (page 23). 9. INPUT jack Use this jack to connect the electric guitar / electric bass that you wish to tune. * When a battery is used, the input jack also functions as a power switch. When a plug is inserted into the input jack, the power will be turned on. When the plug is pulled out, the power will be turned off. When you are not using the tuner, pull the plug out of the input jack. 10. OUTPUT jack Connect your amp or another effect unit to this jack. When the tuner is off, this will output the signal of the instrument connected to the Input jack. When the tuner is on, no sound will be output from this jack, so use this jack if you wish to tune silently. 11. BYPASS jack Connect your amp or another effect unit to this jack. This jack will always output the signal from the instrument connected to the Input jack. Use this jack if you want to be heard while you tune. 12. Pedal switch Pressing this switch will turn the tuner on/off. 13. Thumbscrew When this screw is loosened, the pedal will open, allowing you to change the battery. For the procedure, refer to "Changing the battery" (page 23). 12 Connections Before connecting or disconnecting any patch cords, be sure all the volume controls in your system are set to minimum. This will help prevent any damage to system components. To prevent malfunction and/or damage to speakers or other devices, always turn down the volume, and turn off the power on all devices before making any connections. If there are batteries in the unit while an AC adaptor is being used, normal operation will continue should the line voltage be interrupted (power blackout or power cord disconnection). Parallel DC cord (PCS-20A: optional) (OUTPUT) If you do not want to be heard while tuning лптп г Qo0 n n i i I ■ ■ i i 0Í30BS 1 sisase i OUT DC 9V / _ 200 mA =1 If AC Adaptor (PSA-Series: optional) Amplifier Boss compact other effect units 4* OUTPUT INPUT <- 4»BYPASS Chromatic Tuner TU-2 □□ss Electric Guitar Electric Bass (BYPASS) If you want to be heard while tuning 13 Turning on the power * Always make sure to have the volume level of your amp t...