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CDX-GT50W/GT500/GT500EE/GT550
CDX-GT50W/GT500/GT500EE/GT550
3-2. BLOCK DIAGRAM — MAIN SECTION —
(Page 17)
(Page 19)
(Page 17)
(Page 19)
1
ANT
7
SE2L
ELECTRONIC VOLUME
IC401
J300
(ANTENNA)
TU300
(TUNER UNIT)
IC2-BUS CONTROLLED POWER AMP
/MULTIPLE VOLTAGE REGULATOR
IC150
SYSTEM CONTROL
IC711 (2/3)
CN100
8
SE2R
25
SAIN
26
SAOUT
BATT
9
SE1L
10
SE1R
11
DIFFL
13
DIFFR
R-CH
4
3
10
VCC+8.3V
11
VDD+5V
15
E2P VDD
13
TU-SCL
14
TU-SDA
6
S-METER
7
TU MUTE
16
E2P SCL
17
E2P SDA
39
VSM
17
AUX IN
45
SA CKO
44
SA IN
AUDIO+8.3V
TU+5V
BU+3.3V
AEP,UK MODEL
12
TU ATT
25
EEP CKO
24
EEP SIO
8
MUTE CONDITION
5
QUALITY
RDS OUT
53
TU ATT IN
38
13
QUALITY
NS MASK
DAVN
RDS ON
L-CH
R-CH
AUX
SELECT
SWITCH
Q200
R-CH
19
18
OUTLR1
OUTRR1
16
OUTLR2
R-CH
L
R
5
3
OUT FL+
OUT FL–
9
7
OUT RL+
OUT RL–
29
35
27
AMP-REM
R-CH
ANT-REM
BATT
20
6
30
37
AUDIO+B
B.U+B
VP
VP1
VP2
31
33
SERVO3.3V
MECHA6V
34
PANEL+B
TU+5V
21
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
AUDIO+8.3V
15
7
10
12
11
16
1
9
2
4
3
5
6
22
23
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
33
I2C CKO
34
I2C SIO
9
VOL ATT
21
ATT
7
BEEP
26
AMP STB
8
DIAG
73
30
UNISO
RESET
BUS ON
UNICLK
UNISI
B/U CHECK
LINK OFF
ATT
56
TEST IN
11
IN RL
FL+
FL–
RL+
RL–
FR+
FR–
RR+
RR–
AMP-REM
ANT-REM
ACC
TEST
12
IN FL
MUTE
Q204
MUTE DRIVE
Q250,251
NS MASK
CONTROL
Q300
RDS DEMODULATOR
IC350
72
74
ACC IN
TEL ATT
ACCESSORY
CHECK
Q500
BUS ON
SWITCH
Q453
LINK
SWITCH
Q454
TU+5V REG
Q301
BU+3.3V
BU+5V
+3.3V REG
IC700
ILLUMINATION CHECK
Q510
13
TEL-MUTE
14
ILL
D252
D250
F901
(L)
(R)
3
6
5
4
3
1
2
8
7
BATT
BATT
BATT
6
DATA I/O
4
CLK
2
RST
1
BUS ON
BATTERY CHECK
Q455
BUS INTERFACE
IC450
D453
CNJ450
TH450
BUS
CONTROL
IN
CD
SECTION
B
D457
11
12
9
10
16
1 7
XTI SCL
SCL
BU+3.3V
SDA
SDA
INTN
XTO
MPX
VDDA VDDD
TEL ATTENATION
CHECK
Q520
RDS POWER
CONTROL
Q350
9
15
X350
8.664MHz
R-CH
20
17
OUTLF
OUTRF
R-CH
L
R
MUTE
Q205
MUTE
Q201
REAR
FRONT
54
BU IN
58
UNISI
59
UNISO
60
UNISCK
87
BUSON
R-CH
12
DIFFG
75
ILLIN
RST
13
BUS IN
12
CLK IN
11
DATA OUT
8
B/U-C
10
DATA IN
9
DISPLAY
SECTION
D
CD-L
CD
SECTION
A
BATTERY CHECK
DISPLAY
SECTION
E
AUDIO
OUT
J200
(2/2)
R-CH
L
R
BUS
AUDIO
IN
J200 (1/2)
SUB
AUDIO
OUT
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: FM
: AUX
: AM/MW/LW