Fig. 5.17
Similarly, when the switch lighting knob is slid to the ‘HL’ (head lamp ‘ON’) position, the output DC current from the
switch is supplied to the TCI unit along with the position lamps and the tail lamp. Upon receiving the input from the
switch lighting the TCI unit checks for the input from the pulsar coil to determine the engine running condition (head
lamp works only for 10 seconds when the engine is in ‘OFF’ condition) and the switch beam control to determine the
head lamp beam (‘High’ or ‘Low’).
If the beam control switch is in ‘High’ position, the TCI unit will not get any input signal from switch beam control and
supplies the power to the head lamp ‘High beam’ and the head lamp high beam glows. If the beam control switch is
in ‘Low’ position, the TCI gets an input signal from the switch and supplies power to the head lamp ‘Low beam’ and
the head lamp low beam glows.
When the pass-by switch is pressed, a DC signal is sent to the TCI unit. Now, the TCI unit checks for the input from
the switch lighting to determine the head lamp condition (‘ON’ or ‘OFF’). If the head lamp is in ‘OFF’ condition the
TCI unit supplies the power to the head lamp ‘high beam’ and makes it to glow. If the head lamp is in ‘ON’ and
glowing in ‘low beam’, the TCI unit cuts ‘OFF’ the power supply to the ‘low beam’ and supplies to the ’high beam’
(toggles). If the head lamp is glowing in ‘high beam’ the TCI unit does it in vice-versa. If the pass-by switch is pressed
when the engine is not running, the head lamp glows only with 50% illumination.
If the head lamp is turned ‘ON, when the engine is not running, the TCI unit checks for the input from switch beam
control to determine the head lamp beam (‘High’ or ‘Low’). Based on the switch beam controls position the head
lamp glows for 10 seconds with only 50% intensity. If the self start switch is pressed within this 10 seconds the
head lamp goes ‘OFF’ and gets ‘ON’ after the engine starting with 100% intensity. If the vehicle is kept in engine
idling condition for more than 20 seconds with the head lamp ‘ON’, the head lamp reduces the illumination by 50%
and gains it back to 100% once the vehicle is moved or the throttle is opened.
TVS APACHE RTR 200
SERVICE MANUAL
ELECTRICAL SYSTEM
5-8
PULSAR COIL
Y
Y
Y
RR UNIT
12V, DC
BATTERY
12V, 9Ah
R
TO RELAY
STARTER MOTOR
TO RELAY STARTER /
SELF START SWITCH /
IGNITION COIL
TO OTHER
CIRCUITS
R
BW
BW
BW
BW
R
R
R
W
Br
FUSE 15A (DC)
FUSE 10A
(HEAD LAMP)
ENGINE KILL
SWITCH
Or
Or
Or
Or
Or
OrB
OrB
IGNITION
LOCK
R
RB
OFF
ON
W
Br
TO SPEEDOMETER
MAGNETO ASSEMBLY
12V - 200W
Y
Y
Y
BW
BW
BIR
BIB
GR
GrR
P
WG
FROM ES SWITCH
FROM GEAR
POSITION SENSOR
TO STARTER RELAY
FROM CLUTCH SWITCH
FROM SPEEDOMETER
TO IGNITION COIL
FROM THERMAL SENSOR
TO SPEEDOMETER
YB
TCI UNIT
RW
RY
BBr
YOr
YOr
YBl
WR
YB
OrB
Bl
TO SPEEDOMETER
(FOR BACK ILLUMINATION)
Or
Or
Or
Or
Or
YBl
YBl
WR
PASS BY SWITCH
WB
WB
YB
TAIL LAMP
12V LED
NUMBER PLATE LAMP
12V, 5W
Gr
Gr
Gr
Gr
PO
HL
LOW
HI
SWITCH
BEAM
CONTROL
SWITCH
LIGHTING
HEAD LAMP 12V, 60/55W
TO SPEEDOMETER
(FOR HIGH BEAM INDICATION)