8
7
6
5
4
3
2
1
A
B
C
D
1
2
3
4
5
6
7
8
D
C
B
A
1/1
6. PS PWB CI
RCUI
T DI
AGRAM
+24
V
HE
AT
SIN
K
Q1
KTD998
L1
180u
H
2
1
CN
17
CA
R BT CN
PO
WE
R UNIT
COR
E
1
2
CN
1
PS
CN
|LINK
|450CKD
C.SC
H
|450F
MC
.SCH
|450CPU
.SCH
C6
3300
U
F
50V
(C2)
(470
0U
F
)
(50V)
C5
3300
U
F
50V
C1
M0.033
u
F1
UL. CSA T2.5AL/125V
4
1
2
3
BD
1
CP
30
1
6,8PIN:
NC
D2
PS156R
1
5
7
3
4
2
IC1
LM257
4H
VN
R2
10
R1
18K
C3
22UF/50
v
+24
V
GND
R4
1.2KF
R3
22KF
C4
2200
uF/50V
2
1
TO MAIN
PWB
|450F
R
T
.SCH
|450GA.SCH
|450KEY.SC
H
|450MM.SCH
|450OM.SCH
|450POP.SCH
|450POWER.SCH
|450PR.SCH
|450PS.SCH
|450T
P.SCH
|450RS.SCH
|RS1.SCH
|RS2.SCH
Summary of Contents for ER-A450T
Page 56: ...2 MAIN PWB LAYOUT 1 SIDE A ...
Page 57: ... 2 SIDE B ...
Page 59: ...4 FRONT DISPLAY PWB LAYOUT 5 POP UP DISPLAY PWB LAYOUT ...
Page 61: ...7 PS PWB LAYOUT ...