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Philips Manuals
Portable DVD Player
PET944
Service manual
Philips PET944 Service Manual page 20
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Also See for PET944
:
User manual
(20 pages)
,
Specifications
(2 pages)
,
Quick start manual
(2 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
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5
7.0 ELECTRICAL DIAGRAM
CIRCUIT DIAGRAM-POWER
D
J2
DC_JACK
T1 CON
2
1
DC_IN
IN
H
OUT L
C
+9VIN
L3
22uH/CD43
C9
+
0.1uF
B
GND
GND
L6
22uH/CD43
C15
+
0.1uF
+
GND
GND
C16
1uF
A
GND
5
4
D4
F1
1
FUSE
D5
SK34
4001
3
POWER_K1
3
POWER_K2
R8
1K
R5
4.7K
D6
15V
ON/OFF
1
R11
Q7
1
R171
3904
4.7K
10K
R12
10K
+3.3V
Q8
L4
SSP0403
2
3
22uH/CD54
R135
C8
EC6
+
CB10
470uF/6.3v
0.1uF
2K
560pF/NC
GND
GND
GND
+
R15 3.3K
R16 20K
5
VIN
C11
R19
C12
3
1
2
VFB
1uF
1
CE
2.7K/NC
D3
1000P/NC
U2
R21
IN4148
GND
SS7701
R6
200R
10K
EN1
GND
C13
R56
EN1
2K
1uF
GND
GND
GND
+5V
Q11 SSP0403
L7
22uH/CD54
2
3
C153
+
EC8
560pF/NC
CB11
0.1uF
470uF/6.3v
GND
GND
GND
5
VIN
R27
2K
R28
39K
3
VFB
1
CE
R29
2.7K/NC
C17
1
2
1000P/NC
U3
D9
SS7701
R30
IN4148
R71
200R
10K
EN2
GND
C141
EN2
R74
20K
1uF
GND
GND
GND
4
3
Discharge
DQ1
SI2307
CHARGE_DCIN
2
3
D2
DQ6
1
DD4
3904
15V
SK34
DQ7
1
3904
DR16 4.7K
DR18
10K
Q5
SI2307
2
2
3
R51
9V_CLOCK
9V_CLOCK 3
68K
EC5
POWER_K1
100UF/25V
POWER OFF
POWER ON
POWER_K2
R4
Q22
BAT54C
4.7K
ON/OFF
Q6
+3.3V
1
1
3904
3
D12
R186
2
27K
IN4148
ON/OFF DRIVE
+3.3V
EC1
10uF/10V
R170
10K
R49 560
ON/OFF DET
Q23
3904
+9VIN
R20
30K/1%
R18
10K
R10
3.3K/1%
1
R22
4.7K
Q2
1
3904
R23
3.6K/1%
+3.3V
R26
270R
POWER ON_LED
GREEN
POWER ON INDICATION
3
2
Discharge
CHARGE_DCIN
DET_PLAY
DET_PLAY
+3.3V
U1
3
2
IN
OUT
+9VIN
1
4
GND
OUT
+
1117-1.8V
CHARGE_LED
CHARGE_LED
POWER ON_LED
GND
+3.3V
R17
10K
Low Voltage Det
Q9
3904
+9VIN
+5V
+3.3V
+1.8V
Low Voltage Det
ON/OFF DET
ON/OFF DRIVE
2
1
+5V
R56
1K
D
+1.8V
L1
FB600R
C2
EC2
+
0.1uF
47uF/10V
C
JP4
1
2
3
PIN HEADER 1X3
B
+9VIN
2,5
+5V
2,3,5
+3.3V
2,3,4
+1.8V
2
Low Voltage Det 2
ON/OFF DET
2
ON/OFF DRIVE
2
A
1
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