Block diagram-tuner section, Tuner, Section – Sony Ericsson CDX-M620 User Manual
Page 35: Hstx, Rstx, Sircs 24, Bu in, Ram bu, Sys rst, Bus on

35
35
CDX-M620/M670
AJ1
(ANTENNA)
1
10
2
AM ANT
MPX
SA CLK
SA OUT
8
AMDET
9
RDSDET
FM ANT
TUNER UNIT
TUX201
FM AMP
Q202
Q203
SYSTEM CONTROL
IC501 (2/3)
14
S METER
12
SDA
13
SCL
17
SDA
18
SCL
RDS DECODER
IC202
X201
4.3MHz
ELECTRONIC VOLUME
IC305
ATT
CDL
IC310
IC304
IC307
Q301
Q303
Q305
Q309
MUTE
CONTROL
Q310,312
POWER AMP
IC309
CN101
FL+
FL–
RL+
RL–
TEL MUTE
ILL
ACC
TEST
FR+
13
14
7
15
4
10
2
9
1
12
3
11
AUDIO 9V
FR–
RR+
RR–
5
AMP REM
6
ANT REM
16
BATT
X501
32.768kHz
X503
3.68MHz
ILLUM CHECK
Q407
POWER
CONT
Q401
ACC CHECK
Q405
POWER
CONT
Q110,111
Q406
R-CH
BATT
BATT
9V
TUNER 8V
TUNER 5V
POWER
CONT
Q107,108
REG
Q201
9V
POWER
CONT
Q306-308
BATT
Q402
Q404
CN301
CN302
R
L
SUB OUT (MONO)
–3
–4
R
L
AUDIO OUT
REAR
R-CH
–5
–6
R
L
AUDIO OUT
FRONT
R-CH
–1
–2
R
L
BUS AUDIO IN
R-CH
AEP,UK,E
FL
RL
F901
• Signal path
: FM
: AM/MW
: CD
EEPROM
-11V
+11V
3
1
IC310
5
7
EXCEPT M670:US
EXCEPT M670:US
M670:US
EXCEPT M670:US
EXCEPT M670:US
M670:US
• R-ch : same as L-ch.
4-4. BLOCK DIAGRAM — TUNER SECTION —
(Page 36)
(Page 34)