Read Sony CMT-LX50WMR / HCD-LX50WMR Service Manual online
HCD-LX50WMR
HCD-LX50WMR
13
13
5-2. BLOCK DIAGRAM - WM-PORT, USB Section -
: USB
: CD PLAY
SIGNAL PATH
BUS1
BUS0
BUS2
BUS3
BUS3
BUCK
CCE
REQ
LB
I/O0 – I/O15
D0 – D15
S-RAM
IC915
39
UB
40
OE
41
WE
17
CE
6
79 D+
80 D–
77 USBOC
USB CONTROLLER
IC911
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
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
POWER
CONTROL
IC904
VBUS +5V
CN801
WM-PORT
3
4
7
D+
D–
VIN
20
DC IN
14
17
AUDIO-L-OUT
AUDIO-R-OUT
POWER
CONTROL
IC905
WM-PORT +5V
11
USB DET
POWER
CONTROL
IC906
WM-PORT +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
X900
9MHz
CLOCK
DATA
85
DATA
86
CLK
R-ch is omitted due to same as L-ch.
D
WM-PORT-L
G
WM_VBUSON
F
E
R-CH
8
22
10
TXD/SLEEP
RXD/WAKEUP
DET
33 I-IP/WM TXD
50 I-XWM-DC
47 O-IP/WM RXD
49 SEL USB-IP/WM
21 O-IPOD POWER
WM-PORT CONTROLLER
IC913
23 RXD_DEVICE
24 TXD_DEVICE
48 I-IP/WM DETECT
DATA
SWITCH
IC902
8 RESET
46 DETECT
Q900
RESET SIGNAL
GENERATOR
IC910
28
TXD_DMPORT
29
RXD_DMPORT
9
XOUT
11
XIN
X901
20MHz
CD +3.3V
Q903
DATA
SWITCH
IC900
USB
SIGNAL
SELECT
IC903
: WM-PORT
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