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Block Diagram -tuner Section - Sony CDX-M620 Service Manual

Fm/am and fm/mw/lw compact disc player.
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4-4. BLOCK DIAGRAM — TUNER SECTION —
CD
SECTION
(Page 34)
TUNER UNIT
TUX201
AJ1
AM ANT
1
(ANTENNA)
MPX
10
2
FM ANT
AMDET
8
FM AMP
Q202
6
RDSDET
9
X201
4.3MHz
AEP,UK,E
S METER
14
SDA
12
SCL
13
SDA
17
EEPROM
SCL
18
• Signal path
• R-ch : same as L-ch.
ATT
4
ELECTRONIC VOLUME
CDL
IC305
4
28
AUXL
OUT FL
43 MDL
IC310
38 ACOUTL
(Page 36)
5
7
33 AC INL
3
27
OUT RL
SA CLK
35 SA CLK
SA OUT
38 SA OUT
DISPLAY SECTION
13
MPX
11
AM
15
MP IN
IC310
14
S METER
20
SDA
3
24
SWR
21
SCL
17
QUAL
18
EXT ATT
SYSTEM CONTROL
IC501 (2/3)
31
VOL ATT
NOISE
CANCEL
7
50
QUALITY
IC201
Q203
56
NS MASK
RDS DECODER
ST-BY
55
IC202
TEL ATT
16
ILL IN
95
16
MPX
SDA
9
81
4
SCL 10
ACC IN
OSCO
X1A
73
MPTH 2
5
OSCI
52 MPTH
DAVN 8
X0A
74
20
LV IN
75 DAVN
S-METER
TEST IN
84
53
70 I2CSDA
PW ON
83
71 I2CSCL
X0
92
10 E2PSDA
93
X1
11 E2PSCL
TUN ON
114
: FM
: AM/MW
: CD
35
EXCEPT M670:US
IC304
3
1
Q301
M670:US
LINE
AMP
5
7
Q303
EXCEPT M670:US
1
Q305
MUTE
CONTROL
Q310,312
EXCEPT M670:US
M670:US
Q309
IC307
3
1
PRE
AMP
5
7
EXCEPT M670:US
Q406
ILLUM CHECK
Q407
X501
ACC CHECK
32.768kHz
Q405
POWER
X503
BATT
CONT
AUDIO 9V
3.68MHz
9V
Q110,111
POWER
9V
CONT
TUNER 8V
Q107,108
POWER
CONT
1
BATT
Q306-308
8
REG
TUNER 5V
Q201
35
CDX-M620/M670
CN302
–1
L
BUS AUDIO IN
–2
R-CH
R
–5
L
AUDIO OUT
FRONT
–6
R-CH
R
–3
L
AUDIO OUT
REAR
–4
R-CH
R
CN301
L
SUB OUT (MONO)
R
POWER AMP
IC309
CN101
1
5
FL+
FL
12
9
FL–
3
2
9
RL+
RL
11
10
RL–
7
22
MUTE
4
STBY
4
FR+
12
FR–
3
R-CH
RR+
11
RR–
13
TEL MUTE
14
ILL
7
ACC
15
TEST
Q402
5
POWER
AMP REM
6
CONT
ANT REM
Q401
Q404
F901
16
BATT
BATT
DC-DC
5
-11V
CONVERTER
IC306
+11V

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