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3-35
IM 701210-05E
Making Preparations for Measurements
3
Specifications of the Optional Speaker Cable (701952) (Sold Separately) and
Connection Procedure
Use the speaker cable (701952) only to connect the DL750/DL750P to a speaker. For
details on the connection of the speaker cable and the speaker, follow the instructions
that came with the speaker.
1
6
Approx. 1.5 m
RJ-12 connector
To the DL750/DL750P
Wires are separated.
Modify them to suit your needs.
Pin No.
Signal Name
5
6
GND
SPEAKER
Wire Color
Blue
White
CAUTION
Do not short the speaker output signal or apply an external signal. Such act can
lead to malfunction or fire.
Note
•
For a speaker, use a commercially sold speaker with an impedance of 8
Ω
.
•
Depending on the speaker, a large sound may be produced even if the speaker volume of
the earphone microphone is set properly. When using a speaker for the first time, set the
speaker volume to the smallest setting. Some sound will be produced even if the volume
is set to the minimum setting. If the sound is still large even with the smallest volume
setting, turn the REC LEVEL knob on the left side panel at the time of recording to lower
the recording level.
Speaker Output Terminal (GO/NO-GO) Specifications
The terminal is shared with the GO/NO-GO I/O terminal of the DL750/DL750P side
panel.
Type
Modular jack (RJ-12). For the cable, use the optional speaker cable (701952) that is
sold separately.
Pin Arrangement
6
1
1
Pin No.
Signal Name
2
3
4
5
6
NC (no connection)
START IN
GO OUT
GO/NO-GO
NOGO OUT
Connector on the
DL750/DL750P
GND
SPEAKER
Circuit Diagram
+
6
5
Speaker with an
impedance of 8
Ω
(Commercially sold
product)
Speaker cable (701952)
(701952)
Amplifier
220
µ
F
3.14 Connecting the Earphone Microphone with a PUSH Switch and Connecting the Speaker