Kenwood TKR-750 Service Manual page 14

TKR-750
3. External Speaker (KES-4)
The TKR-750 has a internal built-in speaker (5W/8Ω), and
the external speaker output from the TEST/SPKR connector
(15-pin) on the rear of the radio is 4W/4Ω. Use external
speaker KES-4.
3-1. Connection for the KES-4 With the TKR-750
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 connec-
tor.
• Extracting tool
The following extracting tool is recommended :
Molex Inc. Order No. : 11-03-0002
1. Remove the connector with jumper from the external
speaker connector on the rear panel of the radio. (Fig. 4-
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. 4-2)
1) Insert the extracting tool (11-03-0002) into the con-
nector while pushing the jumper lead in the direction
of (a).
2) Push the extracting tool into collapse the barbs of the
crimp terminal.
3) Pull out the lead while continuing to push the extract-
ing 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. 4-3)
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-4 is used.
14
INSTALLATION
Fig. 4-1
Fig. 4-2
Fig. 4-3