Sony STR-KM5 Service Manual page 55

IC4100 BU94604BKV-ZAE2 (USB BOARD) (except South African and Argentina models)
48 47 46
LED_ERROR/TEST9
49
LED_PLAY/TEST10 50
LED_PSD/TEST11
51
LED_PUSB/TEST12 52
Sound Effecter
53
LED_ACCESS
LED_RANDOM
54
55
LED_REPEAT
56
TEST13
57
DVDD_M1
LDO
TEST14
58
TEST15 59
TEST16 60
TEST17 61
DVSS
62
63
TMODE
64
DVDDIO
1 2 3
IC4101 TPS2553DBVR (USB BOARD) (except South African and Argentina models)
Vin 1
GND 2
Charge
Pump
EN 3
Driver
UVLO
Thermal
Sense
45 44 43 42 41 40 39 38
Audio DAC
PLL
AAC / WMA /
MP3
Decoder
System
Controller
4 5 6 7 8 9 10 11
–
Reverse
+
Voltage
Comparator
CS
Current
Sense
Current
Limit
(Note A)
8-ms Deglitch
37 36 35 34 33
AVDDC
32
USB
PHY
31
ATEST1
30 TEST8
29
TEST7
USB
Controller
28 TEST6
27 DVDD_M2
TEST5/
26
CLKOUT12
FAT
File system
25 TEST4
24 DVSS
23 SD_CS
SD I/F
22
SD_DI
Controller
21
SD_CLK
20 SD_DO
SD_CON
19
I2C I/F
Controller
DVDDIO
18
TEST3
17
12 13 14 15 16
6 Vout
5 ILIM
4 FAULT
STR-KM5/KM7
Ver. 1.5
55