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7
TK-860G/862G
INSTALLATION
F.RESET
R705
TX-RX unit B/2
Foil side
R142
TX-RX unit A/2
Foil side
Fig. 8
Emergency Mode
■ Transceiver Modification Procedure
• Install the foot switch
Install the foot switch through the KCT-19 and KCT-18.
When the switch is treaded on, the radio enters the emer-
gency mode.
• Change the power switch circuit
TX-RX unit (B/2) : Control section
$R705 : Attach (R92-1252-05, 0Ω)
TX-RX unit (A/2) : RF section
R142 : Remove (RK73GB1J473J, 47kΩ)
Once the transceiver is modified, it cannot be turned on
and off with the power switch. The power switch turns the
LCD backlight and display on and off. (The power is
switched on and off by IGNITION SENSE.)
IC502
CPU
6
Q506
87
88
25 20
$R705
Attach
0
Power
switch
MBL
MBL
SB
Q505
Key
backlight
LCD
IC510
1
3
CN5
R142
47K
Remove
IC14
KCT-19
15 pin
KCT-18
Foot
switch
Control section
TX-RX section
Outside
13 1
3615
KCT-19 Terminal
3 : Ignition sense
6 : Earth
15 : Foot switch
Fig. 7