Read Sony CDX-R3300 / CDX-R3300T Service Manual online
20
20
CDX-R3300/R3300T
J1
(ANTENNA)
1 ANT
CDL
CDR
CD-L
TU-L
R-CH
3
R
AUDIO 8.3V
TUNER UNIT
TU1
6
S-METER
14
SDA
SYSTEM CONTROL
IC500 (2/3)
24
ACCIN 21
TELATT 23
AMPSTB 70
BEEP 85
CD
SECTION
A
CD
SECTION
B
3
11
CN700
1
9
FL+
FL-
2
10
RL+
RL-
4
12
13
7
FR+
FR-
15
RR+
RR-
TEST
ACC
ATT
16 +B (BATT)
8 GND
R-CH
F901
10A
TU_ATT
BATT
3.3V
17
19
18
BATT
EEP_CKO
67
VSM
3.3V
13
SCL
ATT
BATT
D493
59
TESTIN
DIAG
22
93
5
QUALITY
QUALITY
92
NS-MASK
66
VOLATT
60
DAVN
82
SOUND CONTROL
ELECTRONIC VOLUME
IC400
NC
BUS-LCH
5
C2
9
B2
7
SDA
SCL
MUTE
CONT.
EVR
29
I2C_SIO
I2C_CKO
79
81
17
E2P-SDA
16
E2P-SCL
8
MUTE CON
7
TUN MUTE
11
VDD5V
10
VCC8.3V
68 EEP_SIO
64
TU_ATTIN
28
R-CH
9
RDS OUT
16 MPX
9 XTI
10
1
7
XTO
12
SDA
25
29
AUDIO OUT REAR
-1
L
R
-2
R-CH
J400
5 AMP-R
27
35
37
34
33
31
30
6 ANT-R
BEEP
STB
FL
RL
SUB-L
4
SCL
2
SDA
CONT.
9
7
6
20
POWER AMP
IC300 (1/2)
MULTIPLE VOLTAGE
REGULATOR
IC300 (2/2)
VP2
VP1
VP1
• Signal path
: FM
: AM (CDX-R3300T) or MW (CDX-R3300)
: CD
• R-ch is omitted due to same as L-ch.
12
BUIN
M-ATT
31
4
L
OUTF2
23
OUTR2
22
SYSRST 37
RESET 19
+5V REG.
Q3
BACK-UP CHECK/
LOW VOLTAGE
CHECK
Q606,607
OVER VOLTAGE
DET.
Q605,D602,603
RESET
IC502
LINE MUTE
CONTROL
Q491,492
TEL
ATT
ATT
Q701
I2C
BUS
ACC
CHECK
Q702
MUTE
Q440
NS MASK
SWITCH
Q1
MUTE
Q450
11
MUTE
TONE
INPUT SELECTOR
EFFECT
15
INTN
11
SCL
OUTS2
17
MUTE
Q480
5
3
DIAG
AMP-REM
ANT-REM
B.UP+B
PANEL+B
MECH 6V
SERVO 3.3V
AUDIO +B
3.3V
PANEL+B
MECH 6V
SERVO 3.3V
AUDIO 8.3V
SERVO 3.3V
AUDIO 8.3V
VP
D302
D301
D351
S103
(RESET)
MUTE
16
22
I2C
BUS
31
30
RDS POWER
CONTROL
Q50,51
R3300
RDS DEMODULATOR
IC50
R3300
R3300
X50
8.664MHz
R3300
BU IN
SYS RST
1
4
3-3. BLOCK DIAGRAM — TUNER SECTION —
(Page 19)
(Page 19)
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