Block Diagram - Cd Servo, Usb Section; Diagrams - Sony HCD-GT22 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
7-1. BLOCK DIAGRAM – CD SERVO, USB Section –
DETECTOR BD+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+
T E
L 1 3 9 4 2 2 9 6 5 1 3
M401
M
(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–
MUTE
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: CD PLAY
: USB
w w w
HCD-GT22/GT44/GT55
SECTION 7

DIAGRAMS

LO 30
RFo 89 88 AGCi RFEQo 83 81 RFi
82 RFRPi
RO 27 R-CH
RFRP 3 2 RFZi
TEi 6 7 TEZi
AOUT2 (PO5) 47
BCK (PO8) 63
AIN (PI4) 65
BCKi (PI5) 66
LRCKi (PI6) 67
PIO3 51
MDi 92
AoUT3 (PO4) 46
84 VRo
BUS0 38
IC401
BUS1 39
BIAS 23 BUS2 (SO) 40
BUS3 (SI) 41
IN1 3 13 DMo
CD-MP3 PROCESSOR
IC101
IN2' 9 12 FMo
IN3' 20 10 TRo
IN4' 24 9 FOo
7 BUCK (CLK) 42
XCCE 43
S201
(LIMIT) PIO0 48
20 IO0 (/HSO)
BD+3.3V
23 XI
X102
16.9344MHz
24 XO
x a o
y
SBSY 54
XRST 37
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DATA
CLK
A-IN
BCK
LRCK
GATE
ST-REQ
BUS SWITCH SYSTEM CONTROLLER
IC301 IC901 (1/4)
1 2 17 CD-BUS0 (I/O)
13
3 4 16 CD-BUS1 (I/O)
5
O-USB-TXD (SO)
9 8 15 CD-BUS2 (I/O)
I-USB-RXD (SI)
6
11 10 Q Q 14 CD-BUS3 (I/O)
3 7 O-USB-RST (DO) 6
12 19 CD-SEL1
I-USB-CTS (DI)
O-USB-RESET
BUS SWITCH
IC302
BUS0-U
1 2
13
BUS1-U
3 4
5
BUS2-U
9 8
6
BUS3-U
11 10
12
O-USB-LED 37
DATA SELECTOR
IC303
2 12 CD-BUCK
4
BUCK-U
3
5 13 CD-CCE
7
CCE-U
6
14
12 18 MP3 IREQ
13
10
REQ-U
9
11
SELECT
1
I-CD-SENS 26
21 CD-SEL2
u 1 6 3
29 I-SBSY
6 CD XRST
I-OPEN-SW 27
7 CD-M-MUTE
23 23
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2 4
8 9 9
CD-L
A (Page 24)
USB CONTROLLER
IC901
DATA
85 DATA
CLK D+ 79
86 CLOCK
A-IN D– 80
93 DATA
BCK
92 BCK
LRCK
71 LRCK
GATE
94 GATE
ST-REQ
97 ST-REQ
BUS0-U
55 BUS0
BUS1-U
56 BUS1
BUS2-U
57 BUS2
BUS3-U USBPON 78
58 BUS3
BUCK-U
USBOC 77
59 /BUCK
CCE-U
60 /CCE
REQ-U
96 REQ
43 88 RXD1
42 87 TXD1
3 10 1 5 1 5 0 2 DI 8 9
9 84 DO
11 1 /RESET
75 X1
CS2 70
X901
64
RD
9MHz
WR 65
73 X2
SRLLB 66
SRLUB 67
D801
LED DRIVE
Q931 REC
(USB)
LOADING MOTOR DRIVE
IC701
O-LM-F 23 7 FIN OUT1 4
M751
M
(LOADING)
O-LM-R 22 9 RIN OUT2 2
TABLE MOTOR DRIVE
IC712
O-TM-F 25 7 FIN OUT1 4
M741
M
O-TM-R 24 9 RIN OUT2 2 (TABLE)
DISC TABLE
LEVEL SHIFT
ADDRESS SENSOR
Q731
IC731
m
I-ENCD 55
ROTARY
DISC TABLE
c o
ENCODER
ADDRESS DETECT
S711
.
S751
OPEN
DISC TABLE
OPEN/CLOSE
CLOSE
DETECT
HCD-GT22/GT44/GT55
2
8 9 9
CN803
(USB)
3
D+
2
D–
VBUS POWER
ON/OFF SWITCH
IC915
1
VBUS
VBUS
4 IN OUT 5
+5V
EN FLG
1 3
S-RAM
IC921
2 4 9 8 2 9 9
6 CE
41 OE
17 WE
39 LB
40 UB