Sony CDX-GT33U, Service Manual

Page: 17 / 40

CDX-GT33U
CDX-GT33U
17
17
4-1.
BLOCK DIAGRAM – MAIN Section –
20 22 11 12 28
8
17 18
3
25
7
19 27 13 24
4
AU_LCH AU_RCH TXD(MC-BUS) RXD(MC-BUS) WAKE UP Z_MUTE CD_ON CDM_ON SYS_RST EJECT_OK VBUS ON A_ATT BU CHECK MECHA 8.5V A+3.3V BU_+3.3V DR_+6V
R-CH R-CH
R-CH
R-CH
R-CH BU+3.3V
AUDIO +8.5V BU_+3.3V SERVO+3.3V
R-CH
7
AUX-L
9
AUX-R MC RX
59 MC TX
60 WAKE UP
58 Z-MUTE
62 CD_ON
27 CDM_ON
28 RESET
54 SYSRST
26 V-BUS ON
BU +3.3V
70
CLK IN
61 MD2
51 MD0
53 FLASH EN1
78
VOUT
1
VIN
2
15
D701
4
FMIN1
3
FMIN2
3
TU-L
8
AUX GND
ELECTRONIC VOLUME
IC302
J1
(ANTENNA)
PHASE LOCKED LOOP
(PLL)
IC001
L6
FM MIX
L2
CN701
CD
MECHANISM
UNIT
(MG-101Y)
(1/2)
I2C BUS CONTROLLED
POWER AMP/MULTIPLE VOLTAGE REGULATOR
IC301
SYSTEM CONTROL
IC401 (1/2)
RESET
IC403
CN802
4
TU-R
5
CD-L
6
CD-R
R-CH R-CH
BATT
R-CH
8 9
18
SCL
19
SDA
14
RSSI
37
VSM
84
DAVN
76
RDS ON
12
MPXIN
13
MPXOUT
16
MPX
11
SCL
12
SDA
I2C-SCK I2C-SIO
15
1
7
INTN
16
XTAL1
15
XTAL2
LOUT
ROUT
J901
AUX
X1
4MHz
AEP,UK,IT,RU MODEL
S401
RESET
5 3
OUT-FL+
AEP,UK,IT,RU MODEL
OUT-FL–
9 7
OUT-RL+ OUT-RL–
27
R-CH
ANT-REM
35
VP
BATT
20
VP1
6
VP2
30
AUDIO+B
31 33
SERVO+3.3V
MECHA+6V
34
PANEL+B
25 23
OUT-FR
17
SACLK
18
SADA
19
SAOUT
OUT-RR
28
MUTE
4
SCL
AUDIO +8.5V SERVO+3.3V MECHA+6V PANEL+B
2
SDA
16
BEEP
22
STB
25
DIAG
7
10 12 11 16
1 9 2 4 3 6
29 30
SCL SDA
SCL SDA
SCL SDA
SCL SDA
SCL SDA
23
I2C_SCK
72
SACLK
71
SAOUT
38
SAIN
22
I2C_SIO
31
ATT
47
EXTATT_XEN
98
E-VOL_ATT
97
BEEP
68
AMPSTB
69
DIAG
12
IN-FL
FL+ FL– RL+ RL– FR+ FR– RR+ RR– ANT-REM BATT ACC
26
OUT-FL
11
IN-RL
24
OUT-RL
MUTE DRIVE
Q303,304
29
ACC IN
ACC DETECT
Q805
+3.3V REG
IC402
MUTE
Q103
13
TEL-ATT
30
TL ATT
TEL-ATT DETECT
Q806
1
AMRFIN
D306
D308
D309
FU601
83
BU CHECK
37
BU+B
B.U+5V
MUTE
Q104
BU+3.3V
BATT
2
3
9
XTI
10
XTO
VDDA
VDDD
BU +3.3V
X601
8.664MHz
RDS DEMODULATOR
IC601
MECHA +6V
3.3V
6 3
FLASH_W UART_CLK
7
CLK IN
2
RESET RX
4 1 5
TX
CN401
FLASH
PROGRAMMING
BU +3.3V
B.U +5V
RDS +3.3V
CONTROL SWITCH
Q601,602
CD MUTE
Q305
FLASH
PROGRAMMING
BUFFER
Q401,402,701
BACK-UP
CHECK
Q802,807,808,
D806,807
• Signal Path
• R-CH is omitted due to same as L-CH.
IT : Italian model RU: Russian model
• Abbreviation
: AM or MW : CD : FM : AUX
SECTION 4
DIAGRAMS