Yamaha MFC1 Specifications download pdf (Page 4)

FRONT PANEL

Power ON/OFF Switch

When the power is turned ON, the program which

was selected immediately before the power was

turned OFF will be re-selected. Due to the safety

muting circuit, no sound will be produced by the

SPX90 II for a few seconds after the power is

turned ON.

Input Level Control (0 ~ 10)

Regulates the level of the input signal. Set the IN-

PUT LEVEL control while watching the INPUT LEVEL

meter. The seven LED meter segments should not

all be continuously on when an input signal is ap-

plied, as this will result in input amplifier overload

and distortion. When the INPUT LEVEL control is set

to “8” on the scale, the input/output gain is 1

(unity). A setting of “10” increases gain by about

10 dB.

Input Level Meter

This easy-to-read LED level meter is a visual aid to

setting appropriate input levels. Generally, the best

input level setting will produce continuous lighting

of the lower green LED segments, while the upper

red segments flash only occasionally.

Memory Number LED

This LED display shows the number of the current-

ly selected program. Memory numbers 1 through 30

contain factory-preset effects (ROM). Memory

numbers 31 through 90 can be used to store edited

versions of the preset effects (RAM).

LCD Program and Parameter Indicator

This high-contrast Liquid Crystal Display indicates

the effect name and parameter data value.

Parameter Key

Selects successive effect parameters. Pressing this

key sequentially calls the programmable parameters

within the currently selected effect program. Once

the desired parameter has been selected, the

PARAMETER INCREMENT/DECREMENT keys are

used to change the value of that parameter, thereby

modifying the effect. The parameters available for

each program are different: refer to the parameter

chart on page 24.

Parameter Increment/Decrement Keys

These keys are used to change the value of a

selected parameter. Press the increment key (up ar-

row) to increase the value, or the decrement key

(down arrow) to decrease the value.

Balance/Output Level Key

Adjusts proportion of effect signal to direct signal.

Pressing this key alternately causes the current

balance and output level values to be displayed on

the LCD. The Parameter Increment/Decrement keys

are then used to adjust the displayed values.

Store Key

Stores any edited preset effect in a selected RAM

memory position (31 ~ 90).

Memory Increment/Decrement Keys

These keys select any desired memory number to

call a specific program or store an edited program

in the user memory area. The selected memory

number is shown on the MEMORY NUMBER display.

When a new memory number is called, the

MEMORY number display will flash until either the

STORE or RECALL function is activated.

Recall Key

Press this key to recall the program that resides in

the selected memory number.

Utility Key

Multi-purpose key accesses MIDI control functions,

facilitates program title editing and sets footswitch

memory control range. See pages 8 and 9 for details.

Foot Trigger Key

When this key is pressed and its LED is ON, the

footswitch connected to the Memory/Trigger jack

functions as a foot trigger for the GATE and FREEZE

programs, rather than for memory selection.

Bypass Key

When this key is pressed, the effect signal is shut

off and only the direct signal will be output. Direct

signal level is affected by the INPUT LEVEL control

setting.

Memory/Trigger Footswitch Jack

Facilitates remote memory selection via optional

footswitch. The range of memory locations to be

recalled by the footswitch can be set with a Utility

program. When the foot trigger function (above) is

ON, the footswitch connected to this jack acts as

a trigger footswitch rather than memory control. Use

of a Yamaha FC5 Foot Controller is recommended.

Bypass Footswitch Jack

Facilitates foot control of the BYPASS function

described above. A Yamaha FC-5 Foot Controller is

recommended.

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Yamaha MFC1 Specifications Page 4

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