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May. 2008 DD-7
Cautionary Notes
Before beginning the procedure, please read
through this document. The matters described may
differ according to the model.
No User Data
This product cannot save user data. Backing up user data during servicing is
not required.
Parts List
A component whose part code is ******** cannot be supplied as a service part
because one of the following reasons applies.
- Because it is supplied as an assembled part (under a different part code).
- Because a number of circuit boards are grouped together and supplied as
a single circuit board (under a different part code).
- Because supply is prohibited due to copyright restrictions.
- Because reissuance is restricted.
- Because the part is made to order (at current market price).
Circuit Diagram
In the circuit diagram, NIU is an abbreviation for Not in Use, and
UnPop is an abbreviation for Unpopulated. They both mean non-mounted
components. The circuit board and circuit board diagram show silk-screened
indications, but no components are mounted.
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May. 2008 DD-7
Main Specifications
DD-7: Digital Delay
Nominal Input Level
-20 dBu
Input Impedance
1 MΩ
Nominal Output Level
- 20 dBu
Output Impedance
1 kΩ
Recommended Load Impedance
10 kΩ or greater
Delay Time
1 ms to 6400 ms
* Values may vary according to the mode and connections.
Maximum Recording Time
40 seconds (in HOLD mode)
Controls
Pedal switch
E.LEVEL knob, F.BACK knob, D.TIME knob, MODE knob
Indicator
CHECK indicator
(Used for indication of TEMPO, HOLD, and to check battery)
Connectors
INPUT-A (MONO) jack, INPUT-B jack
OUTPUT-A (MONO) jack, OUTPUT-B jack
TEMPO/EXP jack, AC adaptor jack (DC 9 V)
Power Supply
DC 9 V:
Dry battery 6F22 (9 V) type (carbon)
Dry battery 6LR61 (9 V) type (alkaline)
AC Adaptor (PSA-series: optional)
Current Draw
55 mA (DC 9 V)
Expected battery life under continuous use:
Carbon: 1.5 hours
Alkaline: 6 hours
* These figures will vary depending on the actual conditions of use.
Dimensions
73 (W) x 129 (D) x 59 (H) mm
2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches
Weight
440 g / 1 lb (including battery)
Accessories
Owners Manual English (#G2507366R0)
Mode Sticker (#G2547154R0)
Application Sticker (#G2547160R0)
Leaflet (USING THE UNIT SAFELY, IMPORTANT NOTES, and
Information) (#********)
Dry battery/9 V type (6LR61) (#********)
* The battery that was supplied with the unit is for temporary use-intended
primarily for testing the units operation.
We suggest replacing this with an alkaline dry cell.
Options
AC adaptor (PSA-series)
* 0 dBu = 0.775 Vrms
* In the interest of product improvement, the specifications and/or appearance of
this unit are subject to change without prior notice.
