Philips FWD18 Service Manual page 16

CIRCUIT DIAGRAM - DVD BOARD
C18 C18 10pF 10pF
EC20 EC20
CVB1 L19 L19 1uH 1uH
C20 C20 C21 C21 220uF/16V 220uF/16V
100pF 100pF 100pF 100pF
GND
P+5V
R50 R50 C25 C25 10pF 10pF
75(DIP,1/4W) 75(DIP,1/4W)
L21 L21 1uH 1uH
C29 C29
B/U Q10 Q10
2
9015(DIP EBC) 9015(DIP EBC) 100pF 100pF
GND
VGND
R54 R54 NC NC
C34 C34 47uF/16V 47uF/16V V_COMP
VVCC3
R56 R56 75 75 CVB1
GND
R57 R57 150 150 G/Y
R58 R58 150 150 B/U
R59 R59 150 150 R/V
R60 R60 1K 1K V_FSADJ
TV0 TV1 TV2 TV3
C V B Y Cb C r
CVB Y(S-Video) CVB C(S-Video)
C V B G B R
7 - 3
P+5V
D5 D5
BAV99 BAV99
R48 R48
P+5V
75(DIP,1/4W) 75(DIP,1/4W)
GND
CVB1_O
G/Y Q9 Q9
2
9015(DIP EBC) 9015(DIP EBC)
VGND
R49 R49
D8 D8 P+5V
BAV99 BAV99
P+5V
R52 R52
GND
EC22 EC22 75(DIP,1/4W) 75(DIP,1/4W)
B/U_O
C30 C30 220uF/16V 220uF/16V
100pF 100pF
R/V Q11 Q11
2
9015(DIP EBC) 9015(DIP EBC)
VGND
R55 R55
VIDEO DAC R49 R54 R55 R57 R58
Full Current 0 0 75 75
0
Quarter Current
NC NC NC 150 150
CVB1
TV_DAC0 2
G/Y
TV_DAC1 2
B/U
TV_DAC2 2
R/V
TV_DAC3 2
V_FSADJ
V_FSADJ 2
V_COMP
V_COMP 2
CVB1_O
CVB1_O 1
G/Y_O/SY
G/Y_O 1
R/V_O/SC
R/V_O 1
B/U_O
B/U_O 1
D6 D6
BAV99 BAV99
C19 C19 10pF 10pF
P+5V
GND
EC21 EC21
L20 L20 1uH 1uH G/Y_O/SY
C22 C22 C23 C23 220uF/16V 220uF/16V
100pF 100pF 100pF 100pF
GND
NC NC
D10 D10
BAV99 BAV99
C26 C26 10pF 10pF
P+5V
GND
EC23 EC23
L22 L22 1uH 1uH R/V_O/SC
C32 C32 C33 C33 220uF/16V 220uF/16V
100pF 100pF 100pF 100pF
GND
NC NC
R59
75
150
7 - 3
GND
MCU_TRAY+ D7 D7
1 2
KDS160 KDS160
TRAY+ R51 R51 4.7K 4.7K D9 D9
1 2
GND
KDS160 KDS160
TRAY-
R53 R53 4.7K 4.7K 1 D11 D11 2
KDS160 KDS160
C27 C27 C28 C28 MCU_TRAY- D12 D12
1 2
KDS160 KDS160
0.1uF 0.1uF 0.1uF 0.1uF
P+12V
EC24 EC24
GND 100uF/16V 100uF/16V
GND
TRAY+
TRAY+ 2
TRAY-
TRAY- 2
TRAYIN
TRAYIN 2
TRAYOUT
TRAYOUT 2
CN7 CN7 CN8 CN8
L23 L23 FB FB LOAD+
5
L25 L25 FB FB LOAD-
4
T_OUT D13 D13 TRAYOUT
3 2 1
SD103AW SD103AW
2
GND
T_IN D15 D15 TRAYIN
1 2 1
SD103AW SD103AW
For LOADER For MCU
U6 U6
1
GND
C24 C24 0.1uF 0.1uF
3
P1
9
P2
ZD1 ZD1
4
Vz
5.6V 5.6V
5
FIN
6
RIN
7
VCC1
8
VCC2
LOAD-
2
M-
C31 C31 0.1uF 0.1uF LOAD+
10
M+
BC37 BC37
LB1641 LB1641
0.1uF 0.1uF
L24 L24 FB FB MCU_TRAY+
5
L26 L26 FB FB MCU_TRAY-
4
D14 D14 T_OUT
3 1 2
SD103AW SD103AW
2
GND
D16 D16 T_IN
1 1 2
SD103AW SD103AW