Block Diagram - Audio Section - Sony STR-DG820 Service Manual

6-4.

BLOCK DIAGRAM - AUDIO Section -

L
TV IN
R R-CH
J401
(1/2)
L
SA-CD/CD
CD-R IN
R R-CH
L
DVD
AUDIO IN
R R-CH
J403
L
SAT
AUDIO IN
R R-CH
J404 (1/2)
L
VIDEO 1
AUDIO IN
R R-CH
J703 (2/2)
LINE AMP
L
VIDEO 2 IN
IC706
PORTABLE AV IN
AUDIO
R R-CH
(US, Canadian)
XML
Q
(Page 16)
FL, SL, C,
SW, FBL
P
(Page 16)
J701
MIC AMP
AUTO
IC705
CAL MIC
CN2226 (2/2)
DMPORT
13
L+
MIX AMP
11
IC3002
L–
14
R+ R-CH
12
R– R-CH
ANTENNA TUNER (FM/AM)
FM75Ω
FM ANT L CH
COAXIAL
R CH
AM AM ANT
DO
DI
CLK
CE
SD
RDS_DATA
RDS_INT
STR-DG820
47 INL9 LOUT 76
RECL1 29
51 INL7 R-CH
RECL2 27
41 INL12 R-CH
POWER AMP
IC700
43 INL11
38 INL13
FLOUT 14 6 IN1
INL0
47
POWER AMP
IC800
INPUT SELECTOR,
ELECTRICAL VOLUME
IC400
34 INL15
SLOUT 18 6 IN1
FL
72 LIN
SL
68 SLIN
POWER AMP
IC600
SBL
66 SBLIN
C
70 CIN
SW
71 SWIN
SBL OUT 20 6 IN1
59 INL3
MUTING
Q713
D709
MUTING
CONTROL SWITCH
Q712, 714
COUT 16 8 IN2
INL2
61
(DMPORT_L)
SWOUT 15
63 INL1 (TUNER_L)
R-CH
10 11
67 66
8 MIC_MUTE
105 TUN_DO
107 TUN_DATA
106 TUN_CLK
108 TUN_CE
109 TUN_SD
(AEP, ECE, UK)
104 RDS_DATA
164 RDS_INT
L_OUT
C
(Page 14)
J401 (2/2)
L
SA-CD/CD
R-ch is omitted due to same as L-ch.
CD-R OUT
R SIGNAL PATH
: AUDIO (ANALOG)
J404 (2/2)
L
: TUNER
VIDEO 1
AUDIO OUT
R
Abbreviation
ECE : Continental european, East European
and Russian models
NF1 5
BOOSTER
+VOUT1 2
Q703
BIAS
CURRENT
Q701, 702
DETECT
Q711, 712
BOOSTER
–VOUT1 3
Q704
NF1 5
BOOSTER
+VOUT1 2
Q803
BIAS
CURRENT
Q801, 802
DETECT
Q811, 812
BOOSTER
–VOUT1 3
Q804
NF1 5
BOOSTER
+VOUT1 2
Q603
BIAS
CURRENT
Q601, 602
DETECT
Q611, 612
BOOSTER
–VOUT1 3
Q604
NF2 9
BOOSTER
+VOUT2 12
Q653
BIAS
CURRENT
Q651, 652
DETECT
Q661, 662
BOOSTER
–VOUT2 11
Q654
AF POWER
PROTECTOR
Q320, 321, 323 – 325
68
SYSTEM CONTROLLER
IC7001 (3/4)
17 17
–2
–1
RELAY DRIVE
RY375
Q375
–1
–2
RELAY DRIVE
RY350
Q350
–2
AF POWER
SENSOR
Q720
–1
R-CH
RELAY DRIVE
RY365
Q365
–2
AF POWER
SENSOR
Q820
–1
R-CH
–2
RELAY DRIVE
AF POWER
RY360
Q360
SENSOR
Q620
R-CH
RELAY DRIVE
RY370
Q370
–1
RELAY DRIVE
AF POWER
RY355
Q355
SENSOR
Q670
RELAY DRIVE
RY301
Q301
D7007
D7002
D7009
D7005
D7008
D7004
32 24 26 23 27 25
STR-DG820
J702
PHONES
TB601
+
L
–
FRONT A
–
R
+
TB603
+
L
–
FRONT B
–
R
+
TM2880
+
L
– SPEAKERS
SURROUND
–
R
+
+
L
–
SURROUND
BACK
–
R
+
+
TB001
–
CENTER
J405
SUBWOOFER
AUDIO OUT
POWER_DETECT
R
(Page 18)
34