Philips MCD170 Service Manual page 24

CIRCUIT DIAGRAM - DVD BOARD
MPEG is not repaired,diagram for referrence only.
A+5V
P+5V
D1 1N4001
P+5V
R1 2.2
EC1 BC1 TR_B1
220uF/16V 0.1uF
GND
M+5V
REG01
L5 FB
BC6
0.1uF
RFGND
D3 1N4001
VCC5
Q2
TR_B3 2SS8550D(EBC,1.5A,1W)
VCC1.8
EC6 BC9
R8
4.7K 220uF/16V 0.1uF
REG03
GND
R9
10K
GND
TP1
AGND
TP2
GND RFGND
Power Bead > 2A, RAC@100 MHz
= 70 ohm, RDC(max)= 0.4 ohm
8 - 5
VCC5
Q1
2SS8550D(EBC,1.5A,1W)
VCC3
L3 FB
SD_VCC3
EC2 BC3
R3 DVCC3
20K 220uF/16V 0.1uF
L4 FB
EC3 BC5
GND
R7 10uF/16V 0.1uF
12K
GND
GND
RF3.3V
L6 FB
close to
EC4 BC7
8202R
100uF/16V 0.1uF
RFGND
VVCC3
L7 FB
EC5 BC8
100uF/16V 0.1uF
GND
AVCC3
R10 2.2
EC7 BC10 close to
8202R
100uF/16V 0.1uF
GND
TR_B1
TR_B1
TR_B3
TR_B3
REG01
REG01
REG03
REG03
P+12V C1
CN1
0.01uF
L2 FB
2
1
C3
BC4
220uF/16V
0.1uF
GND
VCC3
CN2
1
GND
2
SD_CLK
SD_CLK
3
SD_CMD
SD_CMD
4
GND
5
SD_D0
SD_D0
6
SD_D1
SD_D1
7
SD_D2
SD_D2
8
SD_D3
9 SD_D3
CARD_SENSE
10 CARD_SENSE 3
CARD_RST
11 CARD_RST
12 GND
13
USB_DP
14 USB_DP
USB_DM
15 USB_DM
16
CARD
CN4
A_MUTE
A_MUTE
1
DVD_L
DVD_L
2
3 AGND
DVD_R
DVD_R
4
AUDIO
CN6
CVB1_O
1
CVB1_O 5
3
2
3 AGND
R/V_O
3
R/V_O
3
G/Y_O
4
G/Y_O
3
B/U_O
5
B/U_O
VIDEO
8 - 5
L1
22uH/1.5A SMD
MP1410 SOP8
U1
1 8
BS Sync
2 7
Vin EN C2
0.22uF
3 6
Vsw Comp
4 5
GND FB
CB1
R4
R5
D2
10K
10K
SS14 SMD
0.01uF
GND
AV1
5
5 CVB1_O
5
3
2
5 R/V_O
3 2
3
3
3
3
7
7
8
8
3
P+5V
comp/S-video
3
GND
3
CN3
1 P+5V
2 V_H_SYNC
3 V_V_SYNC
4 GND
UART
6
6
6
CN5
L8 FB
1
IR L9 FB
2
3
GND
4
KEY0
5
KEY1
6
KEY2
7
KEY3
5
5
KEY
5
P+5V
R2
11K 1%
R6
20K 1%
1
G/Y_O 5
1
3
3
4
4
6
6
9
9
10
10
GND
3
3
DVCC3
IR_IN
IR_IN 3