Block Diagram -Tuner Section - Sony CDX-R3000 Service Manual

CDX-R3000/R3000T
3-3. BLOCK DIAGRAM — TUNER SECTION —
TUNER UNIT
TU1
J1
4
1 ANT L-CH
(ANTENNA)
R-CH 3
RDS 9
S-METER 6
TU-SDA
14
TU-SCL 13
QUALITY
5
E2P-SDA 17
E2P-SCL 16
8
MUTE-CONDITION
TU-MUTE 7
11
TU-VDD (TU5V)
VCC (8.3V) 10
BUS-LCH
5
NC
CD-LCH
CDL 9
A
CD
CDR R-CH
(Page 19)
SECTION
TV-LCH
7
R-CH
SDA
31
SCL
30
29
R3000
RDS DEMODULATOR
IC51
16 MPX
SDA 12
SYSTEM CONTROL
11
SCL
9 XTI
60 VOLATT
XTO
10
X51 82 DAVN
INTN 15
8.664MHz
1 7
TU 5V REG
3.3V
Q51,52
93 VSM
79 I2C_SIO
81 I2C_CKO
R3000
NS MASK
92 QUALITY
SWITCH
Q22
66 NS-MASK
68 EEP_SIO
67 EEP_CKO
R3000
28 TU_ATTIN
64 TU_ATT
+5V REG.
AUDIO 8.3V
Q1
SOUND CONTROL
ELECTRONIC VOLUME
IC401
OUT
EFFECT -FL
23
OUT
-RL
TONE 22
EVR
I2C
17
CONT.
BUS
OUT-
SUB-L
MUTE
IC501 (2/3)
AMPSTB 70
BEEP 85
TELATT 23
ACCIN 21
22
TESTIN
LINE MUTE
24
ATT
CONTROL
BATT
Q478,479
59
DIAG
3.3V
SYSRST 37
BUSON 36
UNISI 5
UNICKO 6
UNISO 4 NC BACK-UP CHECK/
OVER VOLTAGE
LOW VOLTAGE
BUIN 31
CHECK
Q580,D580,581
Q581,582
20 20
POWER AMP
IC750 (1/2)
5
12
3
MUTE
Q441
9
11
7
MUTE
Q461
STB
22
R-CH
BEEP
16
MUTE
Q481
CONT.
SDA
2
I2C
VP2 6
SCL
BUS
4
VP1 20
R3000
TEL
ATT
Q651
ACC
CHECK
Q631
MULTIPLE VOLTAGE
REGULATOR
IC750 (2/2)
D759
AMP-REM
29
D760
ANT-REM
27
25 DIAG
37 3.3V
B.UP+B
PANEL+B 34 PANEL+B
MECH 6V 33 MECH 6V
SERVO 3.3V 31 SERVO 3.3V
AUDIO 8.3V
AUDIO 8.3V 30
VP 35
BATT
BATT
DET.
• Signal path
: CD
• R-ch is omitted due to same as L-ch.
L
J330
-1
AUDIO OUT REAR
R
R-CH
-2
CN601
1 FL+
9
FL-
2 RL+
10 RL-
4 FR+
12 FR-
3
RR+
11
RR-
13
ATT
7
ACC
15
TEST
5 ANP-R
6 ANT-R
8 GND
19
17
F901
10A
18
16 +B (BATT)
: FM
: AM (CDX-R3000T) or MW (CDX-R3000)