8
7
6
5
4
3
2
1
A
B
C
D
1
2
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A
1/12
CHAPTER 8. CIRCUIT DIAGRAM & PWB LAYOUT
1. M
AIN PWB CIRCUIT DIAGRAM
POW
E
R SUPPLY(MAIN PWB)
VCH
+5V
VDD
R112
3.6KF
D4
1SR154
-400
D5
1SR154
-400
ZD2
PT
Z6.2A
C80
1000
uF
16V
R121
180
L1
220u
H
R111
10
D6
SF
PL52V
Q2
3
C415
3
HEAT
SI
NK
1
2
4
3
5
6
7
8
IC6
KA34063
C266
100u
F
50V
1
2
CN8
PS CN
+24
V
F1
FUS
E
UL. CSA
1A/125V
FROM PS
PWB
+24
V
GND
C85
220P
C84
0.1uF
50V
VBT
BT
1
BAT
TE
RY
R113
1KF
C86
0.1uF/5
0V
R120
150
C81
330u
F/16V
C82
330u
F/16V
2
1
CN9
BT
CN
+5V
/P
0F
F
R118
56K
+24
V
D7
1SS353
R119
2.7K
3
2
1
8
4
IC7A
BA10393F
5
6
7
8
4
IC7B
BA10393F
+24
V
<P-OFF C
IRC
UI
T>
C83
1u/50V
R117
2.7K
R114
8.2KG
R115
15KG
R116
9.1KG
ZD1
UDZ5.1B
3-8C
C87
1000
P
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 ...