Kenwood TK-880 Service Manual page 23

TK-880
4. Ignition Sense Cable (KCT-18 : Option)
The KCT-18 is an optional cable for enabling the ignition
function. The ignition function lets you turn the power to the
transceiver on and off with the car ignition key.
If you use the Horn Alert function or the Manual Relay
function, you can turn the function off while driving with the
ignition key.
2-1. Connecting the KCT-18 to the Transceiver
1. Install the KCT-19 in the transceiver. (See the KCT-19
section.)
2. Insert the KCT-18 lead terminal (
square plug ( ) supplied with the KCT-19, then insert
1
the square plug into the KCT-19 connector (
KCT-19
4-2. Modifying the Transceiver
Modify the transceiver as follows to turn the power or
the Horn Alert or Manual Relay function on and off with the
ignition key.
1. Remove the lower half of the transceiver case.
2. Set jumper resistors (0Ω) R151 and R152 of the TX-RX
unit (A/2) as shown in Table 1.
Operation when KCT-18 is connected
KCT-18 cannot be connected
Power on/off and Horn Alert or
AUX-A on/off
Horn Alert or AUX-A on/off, Timed power off
Power cannot be turned on
Table 1 R151 and R152 setup chart
22
INSTALLATION
) into pin 3 of the
2
).
3
3
1
3
Contact
13
2
6
15
1
KCT-18
Fig. 3
R151 R152
Enable Enable
Disable Enable
Enable Disable
Disable Disable
R151
R152
KCT-19
CN7
Fig. 4
5. Optional Voice Scrambler Function
The optional voice scrambler function can be used by two
methods.
1. Assign this function to the Scrambler key by using the
programming software (KPG-60D).
When the Scrambler key is pressed, the ··· indicator
comes on, and the optional (scrambler) function is en-
abled.
When the key is pressed again, the ··· indicator goes
off and the function is disabled.
2. Assign the optional scrambler function to each channel
by using the programming software (KPG-60D). The op-
tional scrambler function can be used without pressing
the Scrambler key.
5-1. Code Setting
The code can be set by two methods.
1. Hold down the Scrambler key to enter the code setting
mode. Codes 1 to 16 will be displayed. Set a code by
turning the [Up/Down] key. When the Scrambler key is
pressed again, the code setting mode terminates.
2. Set a code for each channel by using the programming
software (KPG-60D).
5-2. Voice Scrambler Board Connection
• Modification
1. Remove the upper half of the case of the TK-880.
2. Remove R529 and R571 on the Control unit (X57-615 B/
2).
TX-RX UNIT
(A/2)
ANT