Sakai R2H-2, Shop Manual

Page: 134 / 151

10-055
TROUBLESHOOTING
Fig.: 2-5-4
WATER SPRAY
PUMP
19 3LW
1.25LgY
21
DIODE
O O O O O
O
O
O O O O
O O
O
R2H-2-10007
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
HYD.PRESSURE REV RA
TIO SEL.1
GLOW ELEC.CHG.W
ARNING
PA
RKING BRAKE
HYD.FI
LT
ER
LAMP
CHECK
TEMP
.METER
FUEL
METER
REV PULSE INPU
T
・
2
GN
D
VIBRA
TIN
G
LIQUID SPR
AY
W
ATER SPR
AY
FLOOD LAMP POSITION LIGH
T
TURN SIGNAL(L
)
TURN SIGNAL(R
)
LIGHTIN
G
TEMP
CUR
VE SEL.2
TEMP
CUR
VE SEL.1
REV RA
TIO SEL.4
REV RA
TIO SEL.3
REV RA
TIO SEL.2
12V(+
)
KEY
SW
.(ACC)
REV PULSE INPU
T
・
1
RB GY W G GW GR BrW YW YR Y B L LB Br LW YL LR GL WR OW WB LgY OG GB R P O
COMBINATION METER
B
BATTERY
RELAY
5W
1.25LgY 2 29
1
5WL 51
2
57
B
2 B
19
LW
L
37
WY
37
WY
AV60 B
TO BATTERY
WATER SPRAY TIMER
34
LY
19 3LW
34 LY
WATER SPRAY
SWITCH
2
5
1
4
B
e
g
G
1
1
3
3
4 4 2 2
41 LB
41 LB
41 3LB
41 LB
34 LY
27 LR
27 LR
2 B
2 B
WATER SPRAY
RELAY
STARTER
SWICTH
FUSE BOX
48
1
51
52
5W
L
5W
L
FUSIBLE LINK
65A
5W
5W FUSIBLE LINK
65A
14
50
8W
R
8W
R
FUSIBLE LINK
75A
52 41 3WL 3LB
FUSE
30A
20A 15A 15A 15A 15A 15A 20A 20A 20A 20A
3W
L
52
WR
11
5W
R
50
WR
12
5W
R
50
WR
13
WB
9
C
B
BR
ACC
R1
R2
48
FUSE
5A
48 W 57 L
5W
14
8W
R
B R
1
R
2
Acc B
R
C
R
1
OFF
ACC
ST
Movement
Movement
Movement
LCD
EEPROM
Tachometer
Fuel meter
Temperature
meter
Hour meter
Illumination LED
Water spray
indicator
Liquid spray
indicator
Position lamp
indicator
Flood lamp indicator
Vibration indicator
Turn signal indicator
(left)
Turn signal indicator
(right)
Parking brake
indicator
Engine oil pressure
indicator
Engine charge
warning indicator
Hydraulic filter
indicator
Glow plug indicator
Power
excitation
circuit
5 V
power
supply
12V
BATT (12V)
12V KEY SW
Input
interface
TA pulse
(pickup)
TA pulse
(square wave)
12V
Fuel sensor
Temperature sensor
Engine speed 1
Engine speed 2
Engine speed 3
Engine speed 4
Position lamp
Backlight
Turn signal (right)
Turn signal (left)
Vibration
Liquid spray
Water spray
Flood lamp
Glow plug
Parking brake
Engine charge warning
Engine oil pressure
Hydraulic filter
Lamp check
Coolant temperature 1
Coolant temperature 2
CP
U
C
AN
in
te
rfa
ce
O
ut
pu
t
in
te
rfa
ce
Output interface
Note: The circuit in the dashed box is not mounted.
TA
input interface
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
System configuration diagram