Sony CDX-V3800, Service Manual

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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)
BATT
9 C2
8 C1
R-CH
4
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
15 TU ATT
25 EEP SCK
24 EEP SIO
L
R
CD-L
R-CH
17
18 OUTS2
OUTS1
R-CH
L
R
5
3
LF+
LF-
9
7 RF+
RF-
29
27 SW1
R-CH
SW2
BATT
30
37 REG1
REG2
31
33 REG3
REG4
34 REG5
TU+5V
BATT
25
24 OUTF1
OUTR1
29 MUTE
2 SDA
AU+8V
U-COM+3.3V
SERVO+3.3V
MECHA+6V
DISP+B
4 SCL
SDA
SCL
16 ACGND
22 STB
25 DIAG
AU+8V
35 VP
15
7
10
12
11
16
1
9
2
4
3
5
6
30
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 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)