Block Diagram - Main Section - Sony HCD-XGR90AV Service Manual

HCD-XGR90AV
Q Q
– MAIN SECTION –
3 7 6 3 1 5 1 5 0
DISTORTION
DISTORTION
(Page 25) E ON/OFF SWITCH
GUITAR AMP
Q880 – 883
IC853
J802
GUITAR AMP
GUITAR
IC852
RV601
GUITAR LEVEL
J801
MIC AMP
MIX MIC
IC850 (1/2)
CD-L
(Page 22) A
PB-L
(Page 23) B
ST-L
(Page 23) D
J701 (1/2)
PHONO
L EQ AMP
PHONO
IC601
IN
R R-CH
L
MD IN
A+10V
R-CH
R
J804
L
AUDIO
R R-CH
GAME
VIDEO INPUT
INPUT
SELECT
T E
L 1 3 9 4 2 2 9 6 5 1 3
IC191
VIDEO
IN4 A
8 2
IN3 B
J721
6 3
DVD IN2 C
VIDEO
4 5
INPUT
IN1
1
MUTE
VD-OUT
VIDEO OUT 10 6db
(75Ω)
J711
L
FRONT
R
R-CH
A/D, D/A
+
27
LOGIC
VCA
(L-R)
DVD
26
INPUT (L+R)
CONTROL
CENTER
MODE
3
2
SL-IN
L 77
1
REAR
R
R-CH
2
C-IN
CENTER 76
1
SW-IN
SUB WOOFER OUT 79
w w w
MIC AMP MIC OUT
IC850 (2/2)
RV602
MIC LEVEL
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC111
INC1
5
INB1
INPUT
4
+
INA1
SELECT
3
IND1
SWITCH
6
FUNCTION SELECT
INEX1
7
SWITCH
IC181 +
R-CH
X0 X
13
12
X1
14
SUR1
X2
15 42
X3
11
16 VDD
EQIC-DAT
EQIC-CLK
+5V
8 VSS
REG
A B
Q611
10 9
DBFB-H/L
SW-MODE
Q181 Q182
AUDIO-OUT 1
71 FUNC-SEL0
72 FUNC-SEL1
59 REC/PB/PASS
60 NR-ON/OFF
76 VIDEO-MUTE
LINE-MUTE 82
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (3/4)
STK-MUTE 83
HP-MUTE
PRO-LOGIC
SOUND
XC-OUT
CONTROL
IC201
40 42 72 1
XC-IN
REQ 24 77 PL-LAT X-OUT
22 78 PL-DAT
DATA
23 PL-CLK
SCK 79
X-IN
+
PROTECT
74
FRONT-RELAY
LT-IN
REAR-RELAY
HP-IN 95
SL
SL VOL OUT SL
11 10 VOL 9
C
C VOL OUT C
5 4
VOL 3
VR SW IN
SR
SR
VOL
15 16 80
1 2
17
VOL OUT SW
x a o
. i
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2 8
C
MID/
F OUT2
A
BASS & 14
B
TREBLE
C
A COMMAND
R-CH
B
SURROUND OR
DPL BUFFER
L+R
+
19
SPEANA
F
80
81
94
97
Q Q
3 7 6
POWER AMP
Q802,803 18 11
IC801
LEVEL SHIFT
12
MUTE MUTE
Q114 Q115
TH831
STANDBY SWITCH
TEMPERATURE
R-CH
Q803, 804, 834
DETECT SWITCH
TC
-VEE
+10V
86
11
X501 OVER LOAD
32.768KHz
R-CH
10
13
X502
DC DETECT
STANDBY
16MHz +
SWITCH
15
Q103, 104
R-CH
88
87
85
16
POWER AMP
10 5
IC101(1/2)
MUTE
LEVEL
Q281
R-CH
SHIFT
Q804, 807, 808
MUTE
Q271
D811
POWER AMP
14 6
IC101(2/2)
MUTE
Q731
u 1 6 3
y
24 24
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2 4
8 9 9
R-CH
Q805,806
NC
SWOUT
+ LEVEL SHIFT
24
VL
IN1
VOLUME
15 OUT1
CONTROL
18
CPU
INTERFACE
21 22 16 17
R-CH
(Page 25)
Q112
D803
+
Q165,166
R-CH
Q113 Q111
R-CH R-CH
R-CH
Q169,170 Q167,168
3 1 5 1 5 0 8 9
R-CH
Q831, 832
DELAY
Q833
D401
DETECT
Q801, 851
OVER LOAD OVER LOAD
PROTECT SWITCH
DETECT SWITCH DETECT SWITCH
Q431
Q437
Q432
SWITCH
Q433, 434
PROTECT SWITCH
Q439
RELAY DRIVE
Q401, 402
OVER LOAD
RELAY DRIVE
DETECT
Q101, 151 Q404, 406
D410
R-CH
RELAY DRIVE
Q403, 407
RY402
m
c o
.
2
8 9 9
REC-L
C (Page 23)
L
MD OUT
R-CH R
MUTE
Q701
J701 (2/2)
FAN MOTOR
M901
B+
(FAN)
FAN MOTOR
M
DRIVE
Q961, 962
TM401
FRONT SPEAKER
IMPEDANCE
USE 6 – 16Ω
–1
+
L
–
–2
+
R
–
2 4 9 8 2 9 9
MUTE
Q805,855
J803
PHONES
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER (FM/AM)
RY401
: CD PLAY
: TAPE PLAY
: RECORD
: MIC INPUT
TM402
SURROUND SPEAKER
IMPEDANCE
USE 8 – 16Ω
RY403
+
L
–
REAR
+
R
–
+
CENTER
–
J731
SUB WOOFER OUT