Setting up the main unit
• Temporarily attaching the mounting screws
i+�,,,¥1
�-
Put this sheet on the wall where the Melody Week will be installed using
adhesive tape or pins.
Drill holes for plugs in a position on the pattern sheet.
• For a concrete wall
* Order PY plugs separately (article number: PY2000).
a. Drill holes for plugs (three
positions) based on the
marks on this pattern
. :Sh��t..
·.,< .: .· :=_. �: :·:.
.
·.
:
.
. .
:
.
... , � ....
... -:: .' · :_:: :. ·.
Drill
• For wooden wall
b. Hammer in the
PY plugs {three
positions).
...
.
,,
....
· Holes for self-tapping screws are not required.
c. Cut off excess
portions (three
positions).
PY plug
d. Screw in the
upper two self
tapping screws .
PY plug
' ,,
·.·.·
.
. . .
. .
•
...... ·'
·
...
..
-.. ·-:
.
' .
·
..
·-·:
'
. '
....
·.:
.
. : .. :·:
· ..
:
..
·'.: ··.:
-·
..
,:·.-
·; ,•:',I ..
•:�::,•.
Screw in the upper two self-tapping screws leaving 8 to 10 mm clearance from wall
surface to screw head.
• For a concrete wall
·.,.. 8--1 O mm
• For wooden wall
8--1 O mm
Use attached self-tapping screws
{3.5x32).
4
Remove this pattern sheet from the wall.
• Installation of the main unit
Hang the unit using the large holes in the back of the unit.
Main unit swing
preventive self- \..
tapping screw
fJ'1"
(Attached)
�
-� Tighten the upper two self-tapping screws.
3...
Tighten the main unit swing preventive self-tapping screw in the screw
hole in the center of the main unit.
-29-
Output specifications
• Melody output
External speaker output (80)
Output capable of expanding only one external speaker
• Max. output: 3W (load impedance of 80)
• Compatible speaker: 80, 3W or more
(Since maximum rated output of a built-in amplifier is 3W, use a speaker with rated output of 3W or more.)
-�MtW
1. Only 80 type speaker can be used. A single speaker is connected. High impedance type
(3300, 5000, etc.) is inoperable. When two or more speakers are used, additional speaker
should be expanded using an external amplifier.
2. Do not connect an output terminal to a high impedance type speaker line of the external
amplifier. Failure to observe this precaution may damage an internal circuit.
i\:�t
Melody signal output
Output for external amplifier
• Max. level: O dB variable (load impedance of 6000, unbalanced)
• Compatible amplifier input: -20±10 dB (input impedance of 6000, unbalanced)
For reference: How to make sure of melody signal output
Insert an unprocessed plug into a melody signal jack with a cap removed, and make
measurements of voltage between terminals using a tester, and so forth.
While a knob for melody signal output is turned to maximum level, it is normal if AC
range is of the order of 0.5 to 0.8 V when the melody output is produced.
To the melody signal jack
.. ct:::=illO
• Control output
Channel configuration
Tester
(1VAC range)
Two-channel independent non-voltage contact output ( �
o- [make contact]x2)
Since there is not any voltage between output terminals, it is necessary to provide a power
supply separately to control loads.
Power supply
for loads
��1·
CH1
CH2
Load capacity
Loads
Load capacity differs depending on load type. This is because large current (inrush current) will flow through
the amplifier and the electromagnetic contactor and so forth at the instant of closing the contacts, thus
rendering the contacts under loaded condition.
Be sure to observe the values in the Specifications in page 36.
In the case of the loads (TV, etc.) which are not in the "Specifications", make sure that the value of inrush
current is 15A or less by inquiring the load maker of it before using the loads.
If it is more than 15A, use the electro-magnetic contactor, and so forth (Refer to page 31 "Wiring example").
-30-
