Nady Systems SDP-20 Owner's Manual - Controls and Connectors
CONTROLS AND CONNECTORS
5
(13)
(1)
(2)
FRONT PANEL
(12)
(3)
(4)
(6a)
(5)
(7)
(8)
(9) (10) (11)
1. INPUT GAIN CONTROL
Adjusts the input level of the audio signal to the unit.
2. OUTPUT LEVEL CONTROL
Adjusts the output signal from the unit to match the differing
requirements of connected equipment.
3. INPUT LEVEL DISPLAY
6-segment stereo LED display indicates the level input to the unit.
4. EFFECT TYPE DISPLAY
8 LED display indicates which of 8 possible effect types has been
selected.
5. PARAMETER DISPLAY
Each effect has up to 6 editable parameters. The effect type
selected is indicated by the 3 LEDs in the column on the left side
of this display. The LED above the 6 columns to the right indicates
the editable parameter selected for the chosen effect. This display
is only valid in EDIT MODE. When a specific LED in this display
flashes, it indicates that the SDP-20 is in EDIT MODE and that the
parameter indicated can be changed. Select the next editable
parameter by pressing the UP/LEFT (7) key or choose the
previous editable parameter by pressing the DOWN/RIGHT (8)
key. The VALUE ADJUSTMENT CONTROL (12) is used to
change parameters: UP to increase the parameter and DOWN to
decrease it. The PROGRAM/VARIATION DISPLAY (6) indicates
the parameter changes.
6a. PROGRAM/VARIATION DISPLAY
Whenever the SDP-20 is powered up, this displays the last
chosen effect number. In use, the display indicates different
alphanumeric information, depending on the mode selected.
• In NORMAL MODE it indicates which of the 255 effects
(1-255) has been selected.
• In EDIT MODE it indicates the editable value of the
parameter (0-127).
• In EQ MODE it indicates the editable value of the
parameter (0-127).
• In SAVE MODE it indicates the address (1-20) being
saved.
• In LOAD MODE it indicates address (1-20) being loaded.
6b. MODE DISPLAY
This indicates which of the MODES above is selected. Use the
EDIT/SAVE/LOAD/EQ SELECTOR & 5KHZ EQ SELECT KEY
(9) To select the MODE desired. When all the LEDs in this display
are off the unit is in NORMAL MODE. Note that if the unit is left
non operational for a while, it will enter NORMAL MODE by itself.
7. UP/LEFT & 250HZ EQ SELECT KEY
Use this key in NORMAL/EDIT/EQ MODE to select effect type,
edit parameters, or edit EQ parameters. When the corresponding
LED lights, the EQ parameters in this frequency range can be
changed and the PROGRAM/VARIATION DISPLAY (6a) will
indicate present value (64 = 0dB, 127 = +12dB and 0 = -12dB)
8. DOWN/RIGHT & 1KHZ EQ SELECT KEY
Use this key in NORMAL/EDIT/EQ MODE to select effect type,
edit parameters, or edit EQ parameters. When the corresponding
LED lights, the EQ parameters in this frequency range can be
changed and the PROGRAM/VARIATION DISPLAY (6a) will
indicate present value (64 = 0dB, 127 = +12dB and 0 = -12dB)
9. EDIT/SAVE/LOAD/EQ SELECTOR & 5KHZ EQ SELECT KEY
Use this key to change MODES. The MODE selected is indicated
on the MODE DISPLAY (6b). When the corresponding LED
lights, the EQ parameters in this frequency range can be changed
and the PROGRAM/VARIATION DISPLAY (6a) will indicate
present value (64 = 0dB, 127 = +12dB and 0 = -12dB)
10. BYPASS/ENTER & 16KHZ EQ SELECT KEY
Use this key to turn effect on or off. With BYPASS selected (effect
off), both the EFFECT TYPE DISPLAY (4) and the PARAMETER
DISPLAY (5) will be off and the PROGRAM/VARIATION DIS-
PLAY (6a) will indicate “OFF”. In SAVE/LOAD MODE, this
functions as the confirm key (ENTER).
(Note: In OFF state, the
EQ is not off and can still be edited.)
When the corresponding
LED lights, the EQ parameters in this frequency range can be
changed and the PROGRAM/VARIATION DISPLAY (6a) will
indicate present value (64 = 0dB, 127 = +12dB and 0 = -12dB)
11. MIDI SELECT KEY
Use this key to select MIDI control mode. The corresponding LED
indicator will light and the PROGRAM/VARIATION DISPLAY (6a)
will display “256” to indicate that the unit is in MIDI control mode.
12. VALUE ADJUSTMENT CONTROL
Use this control to select effects, edit effect parameters and edit
EQ parameters.
13. POWER SWITCH
Use this switch to power unit ON or OFF. The integrated LED will
light when the unit is ON. Before turning on this unit, verify
connection to the proper voltage AC source, check all connections
and turn down the level controls of equipment connected to the
outputs.
(6b)