Block Diagram -Display Section - Sony CDX-GT72W Service Manual
Fm/am compact disc player
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Also See for CDX-GT72W:
- Operating instructions manual (40 pages) ,
- Limited warranty (1 page) ,
- Installation/connections (2 pages)
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CDX-GT72W/GT720/GT770
CDX-GT72W/GT720/GT770
5-2.
BLOCK DIAGRAM – DISPLAY Section –
KEY
MATRIX
ENC901(2/2),
S911–919
ROTARY
ENCODER
ENC901 (1/2)
CNJ101
(REMOTE IN)
X302
6MHz
X301
32.768kHz
LED990
CD
INDICATOR
DOOR INDICATOR
CONTROL SWITCH
Q134
GT770
BU+3.3V
10K
S301
FREQUENCY
SELECTOR
9K
MAIN
STBY
A
SECTION
RESET
(Page 23)
BU+3.3V
RESET
IC302
S902
RESET
OPEN/CLOSE
MOTOR DRIVE
TH301
M904
IC702
(OPEN/CLOSE)
9
OUT1
FIN
3
7
4
OUT2
RIN
FP I DET
MOTOR+9V
6
PGND
AMP
BATT
1
VCC
REG
IC701
IC703
PULSE SENSOR
DETECT
MOTOR ON/OFF
Q701
SWITCH
BU+5V
SWITCH
BOARD
Q702,703
DISPLAY CONTROL
85 KEY 1
86
KEY 2
78
KEY PUSH
SYSTEM CONTROL
IC303 (2/2)
84
KEY IN0
DISP CE
93
1
SYS CE
88
KEY ACK0
DISP SI RX
98
29
SYS SO
DISP SO TX
99
30
SYS SI
DISP CKO
100
31
SYS CLK
78 RE 0
77 RE 1
CNVSS
CNVSS
7
7
DISP RESET
90
10
RESET
55
RC IN1
NOSE SW
86
RC IN0
DETECT SWITCH
87
KEY ACK2
Q303
D303
XOUT
11
NOSE SW
91
13
XIN
S901
(NOSE DET)
9
XCOUT
11
XOUT
X901
8
XCIN
6.75MHz
13
XIN
95 DOOR IND
1 DST SEL0
BU+3.3V
SWITCH
Q301,302
FLD ON
74
10
RESET
80
TEMP TR
CONVERTER
FSW OUT
58
CONTROL
Q621,622
FL ON/OFF
64
MOT+
CONTROL
FL ON
72
65
MOT–
SWITCH
79
FP IDET
FSW IN
2
MOTOR ON
63
P SNSR
68
66
CLOSE SW
67
OPEN SW
24
24
FL900
FLUORESCENT
INDICTOR TUBE
IC901
LAT TA2 OUT
24
9
LAT
VDD1
4
FL VDD+3.3V
7
VDD2
FL VDD+55V
33
16
FL DAT1
SI1
FL DAT2
99
17
SI2
FL DAT3
3
18
SI3
1
FL CLK
35
15
CLK
F2
I
FL+4.8V
FL CLK IN
5
3
FL CLK OUT
100
19
I
F1
FL+1.4V
21
GCP TAO OUT
28
11
GCP
22
BK TA3 OUT
8
BK
GCP TA4 IN
19
LED DRIVE
BLINK
26
Q923
ILL RED
92
ILL BLUE
91
ILL GREEN
90
FL VDD+3.3V
REMOTE CONTROL
SIRCS
89
SIGNAL RECEIVER
IC903
MAIN
PLAG IN
71
B
PLAG IN
SECTION
(Page 23)
FL B+
FL VDD+3.3V
B+ CONTROL
SWITCH
BATT
Q623,642
DC–DC
CONVERTER
IC620
5
BATT
VCC
TRANS
DC–DC
SWITCHING
OUT
4
7
DRIVE
CT
Q620
6
CS
IN
1
Q624
2
FB
TRANS ON/OFF
DETECT
SWITCH
ILL+10V
LED920–923
LED901–907,928,930
LED DRIVE
Q920,921,924
T620
DC–DC
CONVERTER
TRANSFORMER
D623
FL+4.8V
FL+1.4V
D620,621
FL VDD+55V
D622
Q641
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