Read Sony CMT-LX30IR / HCD-LX30IR Service Manual online
HCD-LX30iR
HCD-LX30iR
13
13
5-2. BLOCK DIAGRAM - USB Section -
BUS1
BUS0
BUS2
BUS3
BUS3
BUCK
CCE
REQ
LB
I/O0 – I/O15
D0 – D15
S-RAM
IC921
39
UB 40
OE 41
WE 17
CE 6
79 D+
80 D–
77 USBOC
USB CONTROLLER
IC901
31 O-USB RXD/DAB DI
SYSTEM CONTROLLER
IC502 (2/3)
J971
(USB)
3
2
1
D+
D–
78 USBPON
70 SRAM-CS
64 RD
65 SRWR
66 SRLLB
67 SRLUB
64 RD
65 SRWR
66 SRLLB
67 SRLUB
VBUS
DATA, CLOCK,
A-IN, BCK, LRCK,
GATE, ST-REQ
A-IN, BCK, LRCK,
GATE, ST-REQ
BUS0 – BUS3,
BUCK, CCE, REQ
BUCK, CCE, REQ
VBUS POWER
ON/OFF SWITCH
IC915
5
1
4
OUT
EN
3
FLG
IN
VBUS
+5V
93
A-IN
92
BCK
BCK
A-IN
LRCK
GATE
GATE
ST-REQ
71
LRCK
94
GATE
97
ST-REQ
55
BUS0-U
56
BUS1-U
88
I-USB-SI
29 I-USB TXD/DAB DO
87
O-USB-SO
34 O-USB DI
2
I-USB-DI
30 I-USB DO
84
O-USB-DO
1 O-USBRESET/DAB1.2V
1
USB-RST
57
BUS2-U
58
BUS3-U
59
BUCK-U
60
CCE-U
96
REQ-U
7 – 10, 13 – 16,
29 – 32, 35 – 38
18 – 25, 28 – 35
A0 –
A15
A1 –
A16
44 – 42, 27 – 24,
21 – 18, 5 – 1
37 – 43, 46 – 54
73
X2
75
X1
X901
9MHz
: USB
CLOCK
DATA
85
DATA
86
CLK
: CD PLAY
SIGNAL PATH
R-ch is omitted due to same as L-ch.
D
E
(Page 12)
(Page 12)
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