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AMP Board -- Circuit Diagram 2
8V_IN
L70 FB_0349
C138
R255
4.7K
NS/100nF
CB94
+
0.1uF
CE52
220u/25V
DRBOM
MCU3.3V
ECO_POWER
R256 10k
18V_IN
+ CE49
220u/25V
GND
5
ECO_POWER
U17
AP1538/SOP-8
SOP8/SMD
L71 47UH-3A
4
6
Vcc
O/P
5
O/P
C139
R254
24.9k-1%
NS/100nF
3
1
OCSET
FB
R253
R260 0
4.7K-1%
D25
SK34
CB93
0.1uF
0.8 x (1+24.9K/4.7K) = 5.04V Low ESR <125 mOHM
MCU3.3V/IP5V
IP5V
R259
0R
2
1
J8
NC/CON2.0-2
IP_GND
A18V
CES2307
Q35
SOT23A
2
3
R249
47K
R250
1K
R251 10K
Q25
1
BS3904
R252
22K
GND
12-2
MCU3.3V/IP5V
R229 0R
U14
NC/HT7333
R246 470 1/2W
8V_IN
2
3
IN
OUT1
+
SOT89
CE41
100u/16V
F
u
0
1
2
4
9
1
5
C
EJS89J2010
L
5V
L66 DCR 33R
R233
47K
C142
C140
+ CE53
10u/10V
0.1uF
220u/10V
L69 DCR 33R
R238
47K
1
2
3
MCU3.3V/IP5V
4
5
ECO_POWER
CON5
CON2.5-5
CON2.54-5
MCU3.3V
+
C134
0.1uF
VCC
CES2307
Q34
SOT23A
2
3
+ CE40
100u/10V
R234
P_GND
1K
R235 10K
Q23
1
DVD_ON
5
BS3904
R236
22K
P_GND
P_GND
R247
0
M5V
SOT23A
2
3
3
Q33
+ CE45
R239
CES2307
33K
100u/10V
R240
P_GND
1K
Q30
R241
4.7K
1
ECO_POWER
5
BS3904
R242
22K
P_GND
P_GND
18V_IN
TP44
TP45
IP_GND
TP46
TP52
L65
FB/100R
GND
12-2
M3.3V
U16
AMS1117-3.3
2
IN
OUT1
M3.3V
4
OUT2
SOT223
+
C137
CE46
0.1uF
220uF/16v
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