Block Diagram - Audio Section - Sony MEX-R5 Service Manual

5-2. BLOCK DIAGRAM – AUDIO Section –
DVD-L
(Page 20) B
AMUTE
(Page 20) F
CN301
(2/3)
BUS AUDIO IN
(AUX IN)
11
AUX L
12
AUX LGND
13
AUX R R-CH
14
AUX RGND
BUS_AUX
GND SWITCH
Q301
FM/AM TUNER PACK
TUX201
J201
(ANTENNA IN)
L 4
1 ANT
R 3 R-CH
SDA
TU_SDA 14
SCL
TU_SCL 13
VSM
S_METER 6
TU MUTE
TU_MUTE 7
MUTE CON
MUTE-CONDITION 8
TRDA
E2P_SDA 17
TRCL
E2P_SCL 16
QUALITY
QUALITY 5
RDS 9
RDS DECODER
IC201
MPX 16
4 OSCO
SDA
X201 SDA 9
SCL
4.332MHz
SCL 10
5 OSCI
DAVN
DAVN 8
(AEP, UK, Russian)
MEX-R5
GAIN CONTROL
IC304
6 IN1B
OUTB 11
7 IN2B
MUTING
Q311
2
R-CH
MUTING CONTROL
Q309, 310
INPUT SELECT,
ELECTRICAL VOLUME
IC301
42 MD L OUTLF 25
4 PDL+
OUTLR 24
40 AML
OUTSW 17
MUTING MUTING
Q302 Q304
12 13 16 14 15
(AEP, UK, Russian)
NS DET DISCHARGE
SWITCH
Q202
SDA
EEPROM
SCL
IC504
1 2 51 41 39 3 50 10 32 31
VIDEO
(Page 20) G
R-CH
1Y0 4
CNT A
2 1A 1Y1 5
LEVEL SHIFT
CNT B
Q904, 905 3 1B 1Y2 6
1Y3 7
RF CONTROL
IC101
R-CH
R-CH
MUTING
Q306
R-CH
MUTING CONTROL
Q307, 308
12
SWITCHING
IC305
11
4 44 30 15 28 16 11 14 90 91
SYSTEM CONTROLLER
IC501 (1/2)
21 21
RF UNIT
AVT101
VIDEO
AUDIO_L
AUDIO_R
LED1
• R-ch is omitted due to same as L-ch.
LED2
LED3
• SIGNAL PATH
LED4
: DVD/CD (AUDIO)
: TUNER
: AUX IN
CN301 (3/3)
1
FRONT LCH
FRONT AUDIO
3
OUT
FRONT RCH
5
REAR LCH
REAR AUDIO
7
OUT
REAR RCH
9
SUB (SUB OUT (MONO))
POWER AMP
IC306 (1/2) CN801 (2/2)
1
FL+ 5 FL+
FL IN 9
FL– 3 FL–
4
FR+
R-CH 12
FR–
2
RL+ 9 RL+
RL IN
10
RL– 7 RL–
3
RR+
R-CH
11
RR–
2 4 22 25
BZ801
BUZZER DRIVE
Q801
23 22 5
VMUTE_F 13
VMUTE_R
Z_MUTE 53
CD_RST 70
MEX-R5
MUTE1
A
(Page 20)
MUTE2
12
Z_MUTE
C
(Page 20)
RESET
D
(Page 20)