Hitachi L300P Series Service Manual page 45

SJ300-370-450LF, L300P-450-550LFR Circuit Diagram
P
PD
DM Board
G
G
R
S
T
N
R T
J52
J52
Control Power
J53
Board
R
J54
T
J55
J62
J64
J65
J64
J65
J62
J51
To
Ro J61
Pre Control
Power Board
SP SN RP SN FW
P24 PLC
J10
DM
THY
J41
J41
H I T A C H I
PLUG
Digital
Operator
RUN
STOP/RESE Plug
2
1
FUNC STR
8 7 6 5 4 3 2 1
CM1
IGBT
J11
+ + + +
J16
Main board
J1
J1
OPEC
Logic Board
TMC
CN1
FM TH CM1 11 12 13 14 15 CM2 H
J31
J32
J56 J71
J33
J56 J71
CTU
CTW
CT Board
J21
J22
J23
Flat Cable
J24
OPT1C
OPT2C
Control Terminal Board
O OI O2 L AM
AMI AL2 AL1 ALO
Note: Control terminal symbol is SJ300.
Thermistor
Thermistor
Thermistor
U
V
W
FAN
FAN
FAN
FAN
OPTXC
Option Board
OPTXC
Option Board