Sakai SV201-1, Shop Manual

Page: 222 / 238

9-045
TROUBLESHOOTING
Fig.: 2-5-2
SV201-1-09005
Power
excitation
circuit
5 V
power
supply
Movement
Movement
Movement
LCD
CPU
EEPROM
C
AN
in
te
rfa
ce
Tachometer
Fuel meter
Temperature
meter
Hour meter
O
ut
pu
t
in
te
rfa
ce
Output interface
Illumination LED
Water spray
indicator
Liquid spray
indicator
Flood lamp indicator
Vibration indicator
Turn signal indicator
(left)
Turn signal indicator
(right)
Parking brake
indicator
Note: The circuit in the dashed box is not mounted.
12V
12V
12V
Battery (+12V)
Input
interface
TA
input interfac
e
Fr
eq
ue
nc
y
di
vi
de
r
se
le
ct
or
AD
in
pu
t i
nt
er
fa
ce
Input interface
Input interface
Fuel sensor
Turn signal (right)
Turn signal (left)
Vibrator
Liquid spray
Water spray
Flood lamp
Parking brake
Lamp check
System configuration diagram
Starter switch (ACC)
REV. pulse input.1
(pickup)
REV. pulse input.2
(square wave)
Coolant temp. sensor
REV. ratio SEL.1
REV. ratio SEL.2
Charge warning
Engine oil pressure
warning
Coolant temp. SEL.1
Coolant temp. SEL.2
Hydraulic oil filter
warning
REV. ratio SEL.3
REV. ratio SEL.4
Side marker lamp
Combination meter
ilumination
Preheating
Side marker lamp
indicator
Engine oil pressure
warning indicator
Charge warning
indicator
Hydraulic oil filter
warning indicator
Preheating indicator
X
LgW 28
28
Ｌ
gW
LgW 28
YW 35
YW
35
Br
31
Y
27
69
3W
B
69
3WB
24
X B
75 2BrR
TO PARKING BRAKE INTERLOCK
RELAY
G
g e
B 3WG
2R
B X
B
X
B
IN CASE OF STD.
41
RG
41 RG
COM
NO
E
BR
5
2
3
1
27
Y
26
Lg
30 RY
30 RY
LW
7
2G
2B X
GLOW
RELAY
X B
X
X
B
10
YB
10
YB
30
RY
13
14
12
11
5 2
10
9 8 7
6 4 3 1
35
YW
BY
B B
B
TO F-R LEVER
VIBRATION SWITCH
6
2
30 RY
30 RY
31 Br
18
RG
VIBRATOR LAMP
RELAY
B
6
2
11
Br
9
YR
10 YB
18 RG
18
RG
10 YB
9 YR
30
R
Y
37 2BrW
12
26
Lg
4
4
5BY
26 2Lg
27
Y
24 LW
7
G
7
2G
28
LgW
R
SOL
VIBRATOR RELAY
G
E
H
F D B
VIBRATOR SOLENOID
SOL
VIBRATION
MODE SELECT
SWITCH
4
1
3
5
5A
FUSE
3
4
5 6
GLOW
LAMP
TIMER
B
C
ACC
FUSE BOX
R1
R2
BR
38
36
37
5
41
12
STARTER
SWITCH
GLOW PLUG
R
2RG
20A 15A 15A 15A 20A 20A 15A 15A 20A 20A
2BrW
BATTERY
RELAY
AV60
+ -
12V 80AH
95D31R
BATTERY
PARKING BRAKE
SOLENOID
3
1
4
PARKING BRAKE
SWITCH
2LgR
GL
38
GL
50
5B
W
4 5BY 50
5BW
F.L
65A
FOOT BRAKE SWITCH
(WHEN NOT DEPRESS)
COM NO
O P R GB OG LgY WB OW
O
YL
P
LR
R
GL WR
L LB Br LW
GY
LgY
RB
WB OW
GB
OG
W
Y
GR
YR
GW G
YW
BrW
B
WR GL LR YL LW Br LB L B Y YR YW BrW GR GW G W GY RB
COMBINATION METER
RE
V.
PULSE INPU
T
1
ST
AR
TER SWITCH(ACC)
BA
TTE
R
Y
12V(+)
RE
V.
RA
TIO SEL.2
RE
V.
RA
TIO SEL.3
RE
V.
RA
TIO SEL.4
COOLAN
T
TEMP
. SEL.1
COOLAN
T
TEMP
. SEL.2
COMBINA
TION METER ILLUMINA
TION
TURN SIGNAL(R
)
TURN SIGNAL(L
)
SIDE MARKER LAMP FLOOD LAMP W
ATER SPR
AY
LIQUID SPR
AY
VIBR
AT
OR
GN
D
RE
V.
PULSE INPU
T
2
FUEL
METER
TEMPER
AT
URE METE
R
LAMP
CHECK
HYDRAULIC OI
L FIL
TER
WA
RNING
PA
RKING BRAKE
CHARGE
W
A
RNING
PREHEA
TIN
G
RE
V.
RA
TIO SEL.1
ENGINE OIL
PRESSURE
WA
RNING
3
5R
49
5W
R
49 5WR
F.
L
65A
ST
OFF
C B
R
A
CC
R
2
R
1
B
ON
HEAT