A
A
B
B
C
C
D
D
E
E
1 1
2 2
3 3
4 4
USB_DP
USB_DM
USB_CON
VCC_USB
USB_CON
USB_DP
USB_DM
AKIN1 MIC
AKIN1
M5V
+12VA
USB_DM 4
USB_DP 4
USB_CON 3
AKIN1 4
Note:Q221 use PBSS5320(BJT teansistor) after Year 2009.
USB HOST Interface and Control Circuit.
01UKUSBIFT-101
USB Interface
Karaoke input interface with MPEG IC,for ZORAN platforms.
01UKOKIFT-201
R221 180R221 180
R222 180R222 180
Q221
PBSS5320
Q221
PBSS5320
C221
0.1uF
C221
0.1uF
D10
ESD0603
D10
ESD0603
R477 100/NCR477 100/NC
C479
3300pF/NC
C479
3300pF/NC
XP7
USB CONNECTOR
XP7
USB CONNECTOR
1
2
3
4
D9
ESD0603
D9
ESD0603
C49
1uF/NC
C49
1uF/NC
XP476
3PIN*2.0mm/NC
XP476
3PIN*2.0mm/NC
1
2
3
C478
0.1uF/NC
C478
0.1uF/NC
F221 FUSE(500MA)F221 FUSE(500MA)
6-5 6-5Main Board Circuit Diagram:KOK & USB I/F