Sony STR-DH720 Service Manual page 51

IC4100 BU81459KV-E2 (USB BOARD)
48 47 46
LED_ERROR/TEST9 49
LED_PLAY/TEST10 50
LED_PSD/TEST11
51
LED_PUSB/TEST12
52
Sound Effecter
LACK 53
BCK
54
55
DATA
TEST13 56
57
DVDD_M1
LDO
TEST14 58
59
TEST15
TEST16 60
TEST17
61
DVSS
62
63
TMODE
DVDDIO 64
1 2 3
IC4101 NJM2903V (TE2) (USB BOARD)
1
A OUTPUT
A
+
2
A- INPUT
3
A+ INPUT
4
GND
45 44 43 42 41 40 39 38
Audio DAC
PLL
iPod
Controller
AAC / WMA /
MP3
Decoder
System
Controller
4 5 6 7 8 9 10 11
8 V+
B OUTPUT
7
B
+
B- INPUT
6
B+ INPUT
5
37 36 35 34 33
AVDDC
32
USB
PHY
31 ATEST1
30 TEST8
29
TEST7
USB
Controller
TEST6
28
27 DVDD_M2
TEST5/
26
CLKOUT12
FAT
File system
TEST4
25
24
DVSS
SD_CS
23
SD I/F
22
SD_DI
Controller
21
SD_CLK
SD_DO
20
SD_CON
19
I2C I/F
Controller
18 DVDDIO
TEST3
17
12 13 14 15 16
STR-DH720/DH720HP
51