Diagrams; Block Diagram - Cd Servo, Usb Section - Sony HCD-GT444 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
7-1.

BLOCK DIAGRAM - CD SERVO, USB Section -

DETECTOR +3.3V
VCC
A
A
95 FNi1 (A)
B
B
97 FPi1 (B)
C
C
94 FNi2 (C)
D
D
96 FPi2 (D)
E
E
100 TNi (E)
F
F
98 TPi (F)
LASER DIODE
AUTOMATIC
LD
POWER
91 LDo
CONTROL
Q301
PD LD
PD
OPTICAL PICK-UP
VC
BLOCK
(KSM-213DCP)
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE MOTOR DRIVE
SP+
2 VO1+
M401
M
T E
L 1 3 9 4 2 2 9 6 5 1 3
(SPINDLE)
SP–
1 VO1–
SL+
12 VO2–
M402
M
(SLED)
SL–
11 VO2+
2-AXIS
DEVICE T+
18 VO3+
T–
17 VO3–
F+
26 VO4+
F–
27 VO4–
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: TUNER (FM/AM)
: CD PLAY
: USB
w w w
HCD-GT111/GT222/GT444/GT555
SECTION 7

DIAGRAMS

LO 30
RFo 89 88 AGCi RFEQo 83 81 RFi
82 RFRPi
RO 27 R-CH
AoUT3 (PO4) 46
RFRP 3 2 RFZi
PIO2 50
TEi 6 7 TEZi
AoUT2 (PO5) 47
BCK (PO8) 63
AIN (PI4) 65
MDi 92
BCKi (PI5) 66
LRCKi (PI6) 67
PIO3 51
84 VRo
PIO1 49
IC401
BIAS 23
BUS0 38
BUS1 39
IN1 3 13 DMo
BUS2 (SO) 40
BUS3 (SI) 41
IN2' 9 12 FMo
CD-MP3 PROCESSOR
IC101
IN3' 20 10 TRo
IN4' 24 9 FOo
MUTE
7
BUCK (CLK) 42
S201
(LIMIT)
20 IO0 (/HSO)
XCCE 43
+3.3V
PIO0 48
23 XI
X102
16.9344MHz
24 XO
SBSY 54
x a o
y
XRST 37
. i
http://www.xiaoyu163.com
A/D CONVERTER
IC501
A (Page 24)
CD-L
9 STDO AINL 2
12 SCLK AINR 1
10 LRCK
11 MCLK
13 PDN
DATA
CLK
DATA SELECTOR
IC502
SELECT 1
3B 10
A-IN
9 3Y 3A 11
1B 3
BCK
4 1A 2
1Y
2B 6
LRCK
7 2Y 2A 5
GATE
ST-REQ
BUS SWITCH SYSTEM CONTROLLER
IC670 IC401 (1/4)
2 1 41 CD BUS0
13
3 4 42 CD BUS1
Q Q
3 7 6
5
9 8 43 CD BUS2
6
10 11 44 CD BUS3
12
Q671
BUS SWITCH
IC672
BUS0-U
2 1
13
BUS1-U
3 4
5
BUS2-U
9 8
6
BUS3-U
10 11
12
DATA SELECTOR
IC673
2 45 CD CLK
4
BUCK-U
3
5 46 CD CCE
7
CCE-U
6
14
12 40 MP3 IREQ
13
10
REQ-U
9
11
SELECT
1
37 USB SEL-SW
19 SBSY
u 1 6 3
48 CD-XRST
.
47 CD-MMUTE
23 23
HCD-GT111/GT222/GT444/GT555
2 4
8 9 9
(Page 24)
USB_REC-L B
R-CH
USB CONTROLLER
IC901
DATA
85 DATA
CLK
D+ 79
86 CLOCK
D– 80
A-IN
93 DATA
BCK
92 BCK
LRCK
VBUS
71 LRCK
GATE
+5V
94 GATE
ST-REQ
97 ST-REQ
USBPON 78
USBOC 77
BUS0-U
55 BUS0
BUS1-U
56 BUS1
BUS2-U
57 BUS2
BUS3-U
58 BUS3
BUCK-U
59 /BUCK
CCE-U
60 /CCE
REQ-U
96 REQ
3 1 5 1 5 0 8 9 2
USB TXD0 35 88 RXD1
USB RXD0 36 87 TXD1
USB RTS0 38 2 DI
USB CTS0 34 84 DO
CS2 70
USB RESET 33 1 /RESET
RD 64
75 X1
WR 65
X901
SRLLB 66
9MHz
SRLUB 67
73 X2
CD MECHANISM
DECK
M1+ 21
M1+
MOTOR
M1- 18
DRIVE M1-
Q640, 641,
M2+ 7 M2+
Q643 - 648
M2- 6 M2-
SW1 23
SW1
m
SW3 22 SW3
SW2 25
SW2
c o
SW-CHUCK 24
SW7-CHACK
SW-STOCK 27
SW5-STOCK
SW-CLOSE 26 SW6-CLOSE
SW-OPEN 28 SW8-OPEN
2
8 9 9
CN1000
(USB)
3
D+
2
D–
VBUS POWER
ON/OFF SWITCH
IC915
1
VBUS
4 IN OUT 5
EN FLG
1 3
4 9 8 2 9 9
S-RAM
IC921
6 CE
41 OE
17 WE
39 LB
40 UB