Diagrams; Block Diagram -Main Section - Sony CDX-GT22W Service Manual

5-1. BLOCK DIAGRAM — MAIN SECTION —
R-CH
J901
AUX
TU1
(TUNER UNIT)
J1
L-CH
1 ANT 4
(ANTENNA)
R-CH 3
I2C-SCL
TU-SCL 13
I2C-SDA
TU-SDA 14
AUDIO +8.3V 10 VCC (+8.3V)
11 TU-VDD (TU+5V)
TU+5V
B.U +3.3V 15 E2P-VDD
QUALITY
QUALITY 5
VSM
S-METER 6
TUATT
TU-MUTE 7
EEP-SCL
E2P-SCL 16
EEP-SDA
E2P-SDA 17
CNP301
11 AU_LCH
15
AU_RCH
R-CH
22
UNI_SO
24
UNI_SI
26 UNI_CLK
16 Z_MUTE
5
CD_ON
CD
7
CDM_ON
MECHANISM
UNIT
6
(MG-101TC) SYS_RST
21
EJECT_OK
27
BUS_ON
9
A_ATT
25
BU_IN
18 D_+3.3V
SERVO +3.3V
19 A_+3.3V
8
BU_+3.3V
BU_+3.3V
1,2
DR_+6V
MECHA +6V
CDX-GT22W/GT120/GT220
SECTION 5

DIAGRAMS

ELECTRONIC VOLUME
IC401
9 AUX-LCH
7 AUX-RCH
R-CH
8 AUX GND
4 TU-LCH
3 TU-RCH
R-CH R-CH
6 CD-LCH
5 CD-RCH
R-CH
SYSTEM CONTROL
IC501 (1/2)
38 QUALITY
39 VSM
12 TU ATT
25 EEP_CKO
24 EEP_SIO
D512
59 UNISO
58
UNISI
60 UNISCK
93 Z-MUTE
98 CD_ON
99 CDM_ON
D510
77 RESET
BU+3.3V 88 SYSRST
87 BUSON
RESET
IC602
1 VOUT VDD 2
SUBOUT L 21
R-CH
SUBOUT R 22
MUTE
Q481
OUT-FL 25
OUT-RL
23
OUT-FR 26 R-CH (FRONT)
MUTE MUTE
OUT-RR 24 R-CH (REAR)
Q441 Q461
VOLATT
MUTE 28
I2C-SCL
SCL 29
I2C-SDA
R-CH
SDA 30
D479
MUTE
CONTROL SWITCH
Q478,479
I2C-SCL
D511
I2C_CKO 33
I2C-SDA
I2C_SIO 34
VOL ATT 9
ATT 86
BEEP 5
AMPSTB 26
DIAG 8
ACC_IN 72
D580
BATTERY LEVEL CHECK
BU IN 54
Q580–582
BU +3.3V
17 17
R-CH
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
IC750
12 IN-FL OUT-FL+ 5
OUT-FL– 3
11 IN-RL
OUT-RL+ 9
OUT-RL– 7
R-CH
BATT
AMP-REM 29
I2C-SCL
4 SCL
I2C-SDA
2 SDA
ANT-REM 27
BATT
FU601
VP 35
VP1 20
VP2 6
B.UP+B 37
B.U+5V
BU +5V
AUDIO+8.3V 30 AUDIO +8.3V
16 BEEP
SERVO+3.3V 31
SERVO+3.3V
22 STB MECHA+6V
33 MECHA+6V
25 DIAG
PANEL+B 34 PANEL+B
ACCESSORY CHECK
Q631
BATT
TU+5V REG
TU+5V AUDIO +8.3V
Q1,D1
D581
• R-CH is omitted due to same as L-CH.
• Signal Path
: CD PLAY
: FM
: AM
: AUX
CDX-GT22W/GT120/GT220
J330
L AUDIO
OUT
R REAR
CN601
1
FL+
9
FL–
2
RL+
10
RL–
4
FR+
12
FR–
3
RR+
11
RR–
5
AMP-REM
6
ANT-REM
16
BATT
7
ACC