5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
GREEN
POWER ON INDICATION
POWER OFF
IN H OUT L
POWER ON
CIRCUIT DIAGRAM-POWER
7.0 ELECTRICAL DIAGRAM
Low Voltage Det
+3.3V
+5V
+9VIN
+1.8V
DET_PLAY
ON/OFF DET
ON/OFF
DC_IN
CHARGE_DCIN
Discharge
ON/OFF
ON/OFF DET
ON/OFF DRIVE
ON/OFF DRIVE
9V_CLOCK
POWER_K1
POWER_K2
CHARGE_LED
POWER ON_LED
POWER ON_LED
EN1
EN1
EN2
EN2
Low Voltage Det
+3.3V
+9VIN
+9VIN
Low Voltage Det
2
+3.3V
2,3,4
+5V
2,3,5
+9VIN
2,5
+1.8V
2
ON/OFF DET
2
ON/OFF DRIVE
2
9V_CLOCK 3
POWER_K1
3
POWER_K2
3
DET_PLAY
Discharge
CHARGE_DCIN
CHARGE_LED
+1.8V
+3.3V
+3.3V
GND
GND
GND
GND
GND
GND
GND
+3.3V
GND
GND
GND
GND
GND
GND
GND
GND
+5V
+9VIN
+3.3V
+3.3V
+5V
GND
GND
GND
GND
GND
GND
R1
3
10/
0603
Q8
SSP0403
1
3
2
Q9
3904
1
2
3
R2
4
10/
0603
DR1
4
1
K
R186
27K
L4
22uH/CD54
D
7
SS14
R
153
20K
C5
0.
1uF
D3
IN4148
R5
4.7K
DQ6
3904
1
2
3
D2
SK34
1
2
D4
SK34
1
2
C12
1000P/NC
1
2
R170
10K
T1 CON
1
3
2
4
R28
39K
D12
IN4148
1
2
R26
270R
C2
0.1uF
R18
10K
CB10
560pF/NC
R4
4.7K
U1
1117-1.8V
2
1
3
4
OUT
GND
IN
OUT
CB11
560pF/NC
R12
10K
L6
22uH/CD43
R22
4.7K
R171
10K
C17
1000P/NC
1
2
R15 3.3K
R16 20K
Q7
3904
1
2
3
R74
20K
R11
4.7K
JP4
PIN HEADER 1X3
1
2
3
C11
1uF
Q2
3904
1
2
3
+
EC
9
100uF
/25V
1
2
R21
10K
Q22
BAT54C
1
3
2
L7
22uH/CD54
DR16 4.7K
C9
0.1uF
DR1
7
1
0
K
D
8
SS14
R10
3.3K/1%
R49 560
R56
1K
DQ7
3904
1
2
3
R8
1K
R17
10K
R
7
10K
R71
200R
R29
2.7K/NC
R27
2K
+
EC
7
100uF
/25V
1
2
+
EC
21
10uF
/16V
1
2
Q5
SI2307
1
3
2
D9
IN4148
C16
1uF
F1
FUSE
+
EC2
47uF/10V
1
2
L3
22uH/CD43
DD4
15V
1
2
R20
30K/1%
C15
0.1uF
C13
1uF
R23
3.6K/1%
C153
0.1uF
C141
1uF
DR4
1
0
K
DQ1
SI2307
1
3
2
R19
2.7K/NC
R51
68K
+
EC8
470uF/6.3v
1
2
L1
FB600R
D6
15V
1
2
J2
DC_JACK
1
3
2
R135
2K
U3
SS7701
1
2
3
4
5
CE
GN
D
VFB
EXT
VIN
Q23
3904
1
2
3
C8
0.1uF
+
EC6
470uF/6.3v
1
2
DR18
10K
Q6
3904
1
2
3
R6
200R
Q11 SSP0403
1
3
2
EC1
10uF/10V
D5
4001
1
2
R30
10K
U2
SS7701
1
2
3
4
5
CE
GN
D
VFB
EXT
VIN
R56
2K
+
EC
17
10uF
/16V
1
2
+
EC5
100UF/25V
C6
0.
1uF
Summary of Contents for PET944
Page 7: ...3 0 INSTRUCTION FOR USE ...
Page 8: ...3 0 INSTRUCTION FOR USE ...
Page 10: ...Remove the 2pcs screws and cabinet on the TFT and IR board ...
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