Read Sony CDX-V3800 Service Manual online
14
14
CDX-V3800
CDX-V3800
3-2. BLOCK DIAGRAM — MAIN SECTION —
1 ANT
7 B2
ELECTRONIC VOLUME
IC401
PJ601
(ANTENNA)
TUX601
(TUNER UNIT)
POWER AMP
IC100
SYSTEM CONTROL
IC801 (2/3)
CNP901
6 B1
R-CH (FRONT)
R-CH (REAR)
R-CH (REAR)
BATT
9 C2
8 C1
R-CH
4
3
3
10
VCC
11
TU VDD
15
E2P VDD
13
TU-SCL
14
TU-SDA
6
S-METER
7
TU MUTE
16
E2P SCL
17
E2P SDA
45 VSM
AU+8V
TU+5V
U COM+3.3V
U COM+3.3V
15 TU ATT
25 EEP SCK
24 EEP SIO
24 EEP SIO
L
R
CD-L
R-CH
17
18
18
OUTS2
OUTS1
R-CH
L
R
5
3
3
LF+
LF-
9
7
7
RF+
RF-
29
27
27
SW1
R-CH
SW2
BATT
30
37
37
REG1
REG2
31
33
33
REG3
REG4
34
REG5
TU+5V
BATT
25
24
24
OUTF1
OUTR1
29
MUTE
2 SDA
AU+8V
U-COM+3.3V
SERVO+3.3V
MECHA+6V
MECHA+6V
DISP+B
4 SCL
SDA
SCL
16 ACGND
22 STB
25 DIAG
25 DIAG
AU+8V
35 VP
15
7
10
12
11
16
1
9
2
4
3
5
6
30
31
31
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
33
IIC SCK
34
IIC SIO
6
VOL ATT
1
LINE ATT
5
BEEP
31
STB
56
DIAG
53
BU IN
67
PAK BK
12 IN RR(FL)
FL+
FL-
RL+
RL-
FR+
FR-
RR+
RR-
AMP-REM
ANT-REM
ACC
PAK BK
23
OUTF2
11 IN RF(RL)
22
OUTR2
MUTE
Q405
MUTE
Q407
REAR
AUDIO OUT
MUTE DRIVE
Q400,401
58
UNI SI
59
UNI SO
64
ACC IN
ACC CHECK
Q900
TU+5V REG
Q601
BATT
BATTERY CHECK
Q902
BACK-UP
DETECT
Q906,907
MUTE
Q404
D400
D702
F900
R-CH
L
R
FRONT
AUDIO OUT
R-CH
5
3
3
AP2
AP1
R-CH
L
R
AUX IN
PJ401
D912
BATT
D915
CD
SECTION
A
MUTE
CD
SECTION
B
BATT
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: FM
: AM
(Page 13)
(Page 13)
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