Kenwood NXR-5700, Service Manual

Page: 7 / 122

(No.RA033<Rev.001>)1-7
2.4 INSTALLATION
2.4.1 OCXO (KXK-3)
(1) Before installing the KXK-3, be sure to turn the power off.
(2) Remove the top cover of the TX unit.
(3) Mount the KXK-3 using the 5 screws.
(4) Carefully connect and lock the flat cable to CN1 and
CN724, with the conductor side facing in.
(5) Connect the coaxial cable to CN2 and CN602.
(6) Connect the 2-pin cable to CN3 and CN804.
Fig.1
2.4.2 External Speaker (KES-5)
The NXR-5700 has a internal built-in speaker, and the external
speaker output from the TEST/SPKR connector (15-pin) on the
rear of the radio is 3W/4
Ω
. Use external speaker KES-5.
2.4.2.1 Connection for the KES-5 With the NXR-5700
 When taking the AF output from the TEST/SPKR connector
(15-pin) on the rear of the radio
The following tools are required for changing the connector.
Extracting tool
The following extracting tool is recommended:
Molex Inc. Order No.: 11-03-0002 (W05-0878-00)
(1) Remove the connector with jumper from the external
speaker connector on the rear panel of the radio. (Fig. 2-
1)
Note:
Save the jumper, which is required when the radio is
used without the external speaker.
(2) Remove the terminals with the jumper from the connec-
tor housing holes number 9 and 12 using the extracting
tool.
Removing the jumper lead (Fig. 2-2)
a) Insert the extracting tool (11-03-0002) into the
connector while pushing the jumper lead in the
direction of (a).
b) Push the extracting tool into collapse the barbs
of the crimp terminal.
c) Pull out the lead while continuing to push the ex-
tracting tool in the direction (b).
(3) Reinsert the terminal with the black and white stripe lead
into hole number 12, and the terminal with the black lead
into hole number 6. (Fig. 2-3)
(4) Attach the connector to the external speaker connector
on the radio.
Note:
• Relationship between TEST/SPKR connector (15-pin)
connection and speaker output.
• When pins 9 and 12 are shorted: Built-in internal speaker
is used.
• When pins 9 and 12 are open and output is from pins 6
and 12: KES-5 is used.
Fig.2-1
Fig.2-2
Fig.2-3
CN804
CN1
CN3
CN2
CN724
CN602
Conductor side
Square-type plug
(E31-3228-05)
Accessory
Jumper lead
Crimp termial
Crimp termial
Barbs
Extracting tool
(11-03-0002)
(a)
(b)
Crimp terminal
(E23-0613-05)
12
15
13
1
3
6
Black/White lead
Black lead