Philips DVP3550K Service Manual page 31

7-10
5
Main Board Circuit Diagram: KOK&USB I/F
D
Karaoke input interface with MPEG IC,for ZORAN platforms.
CE476 CE476 10uF16V 10uF16V
AKIN1 R476 R476 100 100
C
B
A
5
4
R477 R477 100 100 MIC
1
2
3
+12VA
XP476 XP476
C477 C477 C478 C478 C479 C479 3PIN*2.0mm 3PIN*2.0mm
0.1uF 0.1uF
100pF 100pF
3300pF 3300pF
4
3
M5V
PBSS5320 PBSS5320
F221 F221 FUSE(500MA) FUSE(500MA)
Q221 Q221
R221 R221 180 180
USB_CON R222 R222 180 180
VCC_USB
1
2
USB_DM
3
USB_DP
4
C221 C221
XP7 XP7
USB CONNECTOR USB CONNECTOR
0.1uF 0.1uF
U221 PRTR5V0U2X U221 PRTR5V0U2X
2 3
1 4 VCC_USB
USB HOST Interface and Control Circuit.
Note:Q221 use PBSS5320(BJT teansistor) after Year 2009.
3
7-10
2 1
USB_DP
USB_DP
USB_DM
USB_DM
USB_CON
USB_CON
USB Interface
AKIN1
AKIN1
2 1
D
C
B
A