Sony HCD-GS300AV Service Manual ▷ View online
26
26
HCD-GS300AV
– SURROUND Section –
IC502 (2/2)
AMP
IC502 (1/2)
AMP
• SIGNAL PATH
: FM
: CD
• R-ch is omitted due to same as L-ch.
: TAPE (PB)
: TAPE (REC)
: AUDIO IN
: VIDEO IN
: 5.1CH INPUT
74
76
22 23 24
8
7
6
9
3
1
17
5
7
16
15
26
27
INPUT
AUTO-BALANCE
DELAY
VOLUME
MODIFIED
BNR
TRIMMER,
VOLUME
TRIMMER,
VOLUME
PSEUDO
STEREO
NOISE
SEQUENCER
TRIMMER,
VOLUME
L+R
2
L–R
CPU
INTERFACE
DATA
REQ
SCK
COMMAND
SLIN
CIN
LTIN
R-CH
R-CH
SELECTOR
CENTER
MODE
CONTROL
10KBIT S-RAM
LOGIC
CIRCUIT
ADAPTIVE
MATRIX
R-CH
PS
RIN
PS
LIN
DS2L
OUT
DIN
L
C
R
SW
OUT
SWVOL
IN
S
42
40
4
5
10
11
DVOL
OUT
R-CH
LOUT
CVOL OUT
SLVOL OUT
SLVOL
IN
CVOL
IN
BNR
IN
+
SWVOL OUT
C
OUT
SL
OUT
IC501
DOLBY PRO LOGIC
SURROUND PROCESSOR
4
5
3
6
9
INB1
INC1
INA1
IND1
INEX1
INPUT SELECT
LOGIC
8
14
19
22
21
DATA
CLK
55 VOL-DATA
54 VOL-CLK
DATA
CLK
R-CH
R-CH
GAME-L
J304
VIDEO OUT
J701
J301
VIDEO IN (MD)
L
R
AUDIO IN
L
R
VIDEO IN
J601
FRONT
L
R
REAR
L
R
CENTER
SUB
WOOFER
5.1CH
INPUT
R-CH
R-CH
FRONT
REAR
CENTER
WOOFER
F-L
REAR
CENTER
FRONT
TOUT1
RECB1
77
18
OUT1
R-CH
15
VOLIN1
42
S(1)
SOUND
CONTROL
IC301 (2/2)
ELECTRICAL VOLUME
Q501
MUTING
SUB WOOFER
OUT
Q502, 503
MUTING
CONTROL
J602
F
J
AMP
SECTION
I
AMP
SECTION
FRONT
L-CH
REAR
L-CH
CENTER
H
AMP
SECTION
AMP
SECTION
G
E
DISPLAY
SECTION
SECTION
D
TAPE DECK
SECTION
A
B
C
CD
L-OUT
L-OUT
TUNER
L-CH
L-CH
TAPE
PB-L
PB-L
INPUT SELECT
IC301 (1/2)
PL-DATA
PL-RQ
PL-CLK
51 52 53
SW-MUTE
50
+
+
R-CH
WOOFER
SWIN
79
80
VRSWIN
LIN
72
DATA
CLK
49 SURCE SEL-B
48 SURCE SEL-A
SEL-B
SEL-A
SEL-B
SEL-A
IC801 (3/5)
SYSTEM CONTROLLER
REC
L-CH
L-CH
VACS
2
1
13
5
3
4
IC302
INPUT SELECTOR
Q304
AMP
3
1
24
SW
OUT
Q101
DBFB
DBFB
SWITCH
R-CH
BB_B1
BB_A1 16
17
D301
D303
CD
SECTION
TUNER
SECTION
TAPE DECK
SECTION
SW-MUTE
DBFB
AMP
SECTION
27
27
HCD-GS300AV
– AMP Section –
IC501
POWER AMP
IC503
POWER AMP
IC600
POWER AMP
IC502
POWER AMP
• Signal Path
: FM
• R-ch is omitted due to same as L-ch.
Q517, 518
MUTING
Q522
MUTING
CONTROL
Q525,526
MUTING
R-CH
DBFB
FRONT
L-CH
L-CH
REAR
L-CH
L-CH
SW-MUTE
CENTER
R-CH
68
67
STK-MUTE
A-MUTE
70
PROTECT
A-MUTE
STK-MUTE
71
72
R-MUTE
C-MUTE
C-MUTE
R-MUTE
C-MUTE
R-MUTE
14
10
4
10
3
10
3
10
3
8
8
8
6
12
65
MULTI ROOM-A
STK MUTE
A-MUTE
Q524
Q514,527
PROTECT
PROTECT
DETECT
+
+
D510
D512
AU +9.6V
D307
D304
D503
D511
Q506, 507
OVER LOAD
DETECT
+
+
+
+
+
Q519, 520
MUTING
Q313, 314, 305
POWER ON MUTING
Q523
MUTING
CONTROL
H/P CHK
F-RELAY
76
F-RELAY
69
H/P-CHK
Q513, 515
DC DETECT
Q512
SWITCH
Q505
RELAY DRIVE
H/P CHK
F-RELAY
+
–
+
+
–
FRONT SPEAKER
IMPEDANCE
USE 6-16
Ω
SURROUND
SPEAKER
IMPEDANCE
USE 6-16
Ω
L
R
PHONES
J882
RY501
IC801 (4/5)
SYSTEM CONTROLLER
J501
F
66
MULTI ROOM-B
SURROUD
SECTION
SURROUD
SECTION
H
SURROUD
SECTION
G
SURROUD
SECTION
J
SURROUD
SECTION
M
Q601,602
FAN MOTOR
DRIVE
(FAN MOTOR)
M391
TH501
Q511
THERMAL
DETECT
+
–
+
+
–
+
–
77
R-ST/BY
RY502
RY503
J502
REAR
L
R
CENTER
+
Q510
RELAY DRIVE
12
14
15
11
13
10
9
A
B
IC310
REAR AMP
SELECT SWITCH
Q319
Q318
I
28
28
HCD-GS300AV
IC932
+8V REG
IC802
RESET SIGNAL
GENERATOR
FL701
FLUORESCENT
INDICATOR TUBE
7 – 10, 12 – 22,
24 – 41, 43 – 47
FIP22 – FIP59
PB4 – PB1
LED9 /PIP9
ı
LED14/PIP14,
FIP17 – FIP19
LED15 /PIP15,
LED16/PIP16,
FIP20, FIP21
68 PA4
69 PA5
RV752
ROTARY
ENCODER
VOLUME
66 PA2
67 PA3
RV751
ROTARY
ENCODER
GRAPHIC
EQUALIZER
DISC
SELECT
X
SURROUND
SECTION
E
VACS
VACS
X701
4MHz
82 X0
83 X1
94 – 99, 2 – 4
LED2 /PIP2,
LED3/PIP3,
LED5/PIP5
ı
LED8/PIP8
87, 88, 90 – 93
100, 1, 5, 6
76 – 73
Q759
LED DRIVE
Q701
LED DRIVE
Q723 - 726
GRID DRIVE
D742, 743
(CD LED)
(CD LED)
59
(DOOR SW)
IC701
DISPLAY CONTROLLER
60
SDA(I2C)
61
SCL(I2C)
77
RSTX
30 I2C DATA
29 I2C CLK
79 FL-RESET
73 POWER KEY
74 DISPLAY KEY
S778
S779
DISPLAY
4 RMC
78 ST/BY LED
X801
16MHz
15 XIN
13 XOUT
X802
32.768kHz
10 SUBXIN
11 SUBXOUT
38
CD ON
80
GAME LED
IC801 (5/5)
SYSTEM CONTROLLER
40
TU-ON
82
P-ST/BY
12
RESET
75
AC CUT
Q316, 317
B+ SWITCH
CD +8V
MOTOR +12V
FAN +12V
CD +5V
COM +5V
IC701
VCC
D701, 702
Q303, 307
B+ SWITCH
FM +7V
Q311, 312
B+ SWITCH
+3.3V
D805
D907
Q931
+12V REG
AU +9.6V
EVER +3.3V
U-COM +3.3V
D806
D807
D803
D931 – 934
RECT
D901 – 904
RECT
Q901
RELAY DRIVE
T902
POWER
TRANSFORMER
(SUB)
D516, 518-520
RECT
F AMP B+
F AMP B–
D505-507, 515
RECT
R AMP B+
R AMP B–
Q934
– 30V
REGULATOR
VP – 30V
D905
RECT
RECT
VF1
VF2
RY901
(AC IN)
T901
POWER
TRANSFORMER
(MAIN)
Q803
RESET
SWITCH
IC702
REMOTE CONTROL
RECEIVER
TO FLUORESCENT
INDICATOR TUBE
FL701
1
79
86
1
3
1
2
3
1
3
1
3
1
3
IC931
+5V REG
IC933
+9V REG
IC803
+4V REG
D758
(STBY)
LED1/PIP1
Q702
LED DRIVE
D741
(DOOR LED)
89
LED4/PIP4
Q751 - 756
LED DRIVE
LED DRIVE
D751 - 753,
755 - 757
S751 – 759T
FUNCTION KEY
78
S770 – 777
FUNCTION KEY
S760 – 769
FUNCTION KEY
80
PB6
PB5
PB7
SO1
72
PB0
Q301
LED DRIVE
D754
S701
GAME
MIXING
F1 - F4
36 KB-SDA
20 KB-SCL
37 KB-CTRL
4
1
5
B+ 5V
+5V
SDA
SCL
J881
KEYBOARD
INPUT
IC305
1
2
3
4
11
10
9
8
Q804
GAME
MIXING
– DISPLAY/POWER Supply Section –
29
29
HCD-GS300AV
7-3. Printed Wiring Board – CD Section –
5
6
7
8
9
C105
IC121
IC103
IC101
IC104
IC150
Ref. No.
Location
IC101
B-7
IC103
B-6
IC104
B-8
IC121
D-2
IC150
B-6
Q101
D-3
• Semiconductor
Location
• See page 23 for Circuit Boards Location.
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