Sony CDX-GT878US - Information and Support; Important Precautions and Safety

CDX-GT828U/GT870US/GT878US
CDX-GT828U/GT870US/GT878US
1919
1
ANT
SCL
SDA
CDMON
CDON
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
POWER AMP
MULTIPLE VOLTAGE REGULATOR
IC300
SYSTEM CONTROL
IC303 (1/2)
CN300
(REAR)
(FRONT)
(REAR)
(FRONT)
BATT
6
CD-LCH
5
CD-RCH
6
S-METER
7
TUN MUTE
83
VSM
EESIO
EECKO
5
QUALITY
9
RDS OUT
82
QUALITY
8
MUTE CON
18
TUNER ATT-IN
17
DAVN
BU+3.3V
GT828U
16
CDM ON
49
CD ON
50
Z MUTE
11
VDD+5V
4
L-CH
3
R-CH
BU+3.3V
10
VCC+8.3V
21
TUNER ATT
19
NSMASK
CD ON
CDM ON
CD L
CD R
4
TU-LCH
3
TU-RCH
CD-RCH
A ATT
TU-RCH
AUDIO+8.3V
AUDIO+8.3V
19
SAOUT
18
SADA
5
3
OUT FL+
OUT FL–
9
7
OUT RL+
OUT RL–
29
27
AMP REM
R-CH
ANT REM
37
AUDIO+B
35
VP
20
VP1
6
VP2
BU+B
31
33
SERVO+3.3V
MECHA+6V
34
PANEL+B
28
MUTE
2
SDA
AUDIO+8.3V
BU+5V
SERVO+3.3V
MECHA+6V
PANEL+B
4
SCL
SDA
SCL
16
BEEP
22
STB
25
DIAG
13
7
10
12
11
16
1
9
2
4
3
5
6
29
30
SCL
SDA
SCL
E-CLK
E-DATA
S OUT
SDA
SCL
SDA
35
25
E-MUTE
ATT
27
I2C CKO
28
I2C SIO
12
IN RR
FL+
FL–
RL+
RL–
FR+
FR–
RR+
RR–
AMP-REM
ANT-REM
ACC
17
SACLK
MUTE
Q452
REAR
MUTE DRIVE
Q491,492
BU IN
73
UNI SI
4
57
BUS ON
RESET
52
ACC IN
ACC DETECT
Q702
BATT
BATTERY
CHECK
Q605
MUTE
Q352
MUTE
Q405
MUTE CONTROL
SWITCH
Q403
MUTE
Q440
S OUT
E-DATA
85
SP IN
36
E-DATA
E-CLK
37
E-CLK
D491
FU601
FRONT
R-CH
23
24
OUT–RL
OUT–RR
R-CH
L
-3
-4
-5
-6
-1
-2
R
J652 (2/2)
CN410
R-CH
25
26
OUT–FL
OUT–FR
R-CH
L
R
SUB OUT
(MONO)
22
SUBOUT–R
D602
BATT
BATT
CNJ400
(BUS CONTROL IN)
D603
D353
BUS INTERFACE
IC601
DISPLAY
SECTION
A
STB
DISPLAY
SECTION
B
BATT
+5V REG
Q3
NS MASK
Q1
B+ SWITCH
Q50,51
RDS DEMODULATOR
IC50
15
E2PVDD
13
SCL
16
E2PSCL
17
E2PSDA
14
SDA
BU+5V
+3.3V REG
IC301
11
IN RF
TEL ATT
53
TELATT
14
ILL
51
ILLU IN
40
AMP DIAG
41
AMPSTB
20
BEEP
AUX
BUS AUDIO IN
J901
9
AUX-LCH
7
AUX-RCH
AUX-RCH
2
BUS-LCH
1
BUS-RCH
BUS-RCH
AUX-RCH
BUS-RCH
CD-RCH
TU-RCH
ZMUTE
45
WAKE UP OUT
W/U OUT
47
EJECT OK
EJECT OK
34
CD RX
CD RX
33
CD TX
CD TX
65
VBUS ON
VBUS ON
46
OPEN REQ
OPEN REQ
Z MUTE
SYS RST
MECHA+6V
BU+3.3V
SERVO+3.3V
B/U CHECK
RXD
TXD
DR+6V
BU+3.3V
A+3.3V
CDON
CDMON
ZMUTE
WAKE UP
W/U OUT
SYSRST
EJECT OK
EJECT OK
BU IN
OPEN REQ
VBUS ON
VBUS ON
OPEN REQ
CD TX
CD RX
CD
MECHANISM
UNIT
(MG-101I)
(1/2)
11
SCL
15
INTN
16
MPX
XTO
XTI
12
SDA
SCL
SDA
1
VDDA
7
VDDD
10
9
X50
8.664MHz
SYSRST BU-IN
ILL DETECT
Q703
30
56
SYSRESET
5
UNI CKO
3
UNI SO
B/U-C
DATA OUT
BUS ON
BUS ON
RST
BATT
CLK
DATA I/O
RST
CLK IN
DATA IN
BATT
J652 (1/2)
L
R
-1
-2
22
23
TEL-ATT DETECT
Q701
13
12
11
10
9
8
1
2
2
1
7
8
3
5
4
6
3
4
6
AUDIO
OUT
• Signal Path
• R-CH is omitted due to same as L-CH.
J : CD PLAY
K : FM
L : AUX
f : MW or AM
KK
KK
KK
K
K
K
K
K
K
K
K
K
JJ
K
L
gg
L
K
f
K
g
: BUS AUDIO
5-1. BLOCK DIAGRAM – MAIN Section –
(Page 20)
(Page 20)