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Decoder Board -- Circuit Diagram 6
18V_IN
L70 FB_0349
R255
4.7K
CB94
+
0.1uF
CE52
DRBOM
220u/25V
MCU3.3V
R256 10k
5
ECO_POWER
U17
AP1538/SOP-8
SOP8/SMD
L71 47UH-3A
4
6
Vcc
O/P
5
O/P
C138
C139
R254
24.9k-1%
NS/100nF
NS/100nF
3
1
OCSET
FB
D25
R253
SK34
4.7K-1%
ECO_POWER
R260 0
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
NC/CON2.0-2
IP_GND
18V_IN
A18V
Q35 CES2307
SOT23A
2
3
+
R249
CE49
220u/25V
47K
GND
R250
1K
R251 10K
Q25
1
BS3904
R252
22K
GND
12-11
MCU3.3V/IP5V
R229 0R
U14
NC/HT7333
R246 470 1/2W
18V_IN
2
3
IN
OUT1
+
SOT89
CE41
100u/16V
5V
L66 DCR 33R
R233
47K
C142
C140
+ CE53
0.1uF
10u/10V
220u/10V
L69 DCR 33R
R238
47K
J8
1
2
3
4
ECO_POWER
5
CON5
CON2.5-5
CON2.54-5
MCU3.3V
+
C134
CE39
0.1uF
100u/10V
VCC
CES2307
Q34
SOT23A
2
3
+
CE40
100u/10V
P_GND
R234
1K
R235 10K
Q23
1
DVD_ON
5
BS3904
R236
22K
P_GND
P_GND
R247 0
M5V
AMS1117-3.3
Q33
SOT23A
2
3
3
IN
+ CE45
R239
CES2307
33K
100u/10V
P_GND
R240
1K
R241 4.7K
Q30
1
ECO_POWER
5
BS3904
R242
22K
P_GND
P_GND
18V_IN
TP44
TP45
MCU3.3V/IP5V
IP_GND
TP46
TP52
L65
FB/100R
GND
12-11
M3.3V
U16
2
OUT1
4
M3.3V
OUT2
SOT223
+
C137
CE46
0.1uF
220uF/16v
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