Read Sony SS-US301 / SW-US301 / UZ-US301 Service Manual online
SS-US301/SW-US301/UZ-US301
9
9
SECTION 5
DIAGRAMS
5-1.
BLOCK DIAGRAM
B+ SWITCH
Q909, 910
56 57 54
2
(POWER ON (GRN))
USB
R-CH
R
AUDIO IN
L
J501
2
3
4
D+
D–
VBUS
J301
USB CONTROL
SWITCH
Q501, 502
9 D+
8 D–
21
HOST
28
XTI
1
XTO
X501
12MHz
14
VOUTL
15
VOUTR
USB D/A
CONVERTER
IC501
R-CH
USB AMP
IC506
8
9
6
10
11
12
INPUT SELECTOR
IC301
+
INPUT SELECTOR
CONTROL SWITCH
Q508
INPUT SELECTOR
CONTROL SWITCH
Q304
LINE AMP
Q506
BUFFER
IC505
5 LIN
17
LOUT
6
COUT
8 IN2
12
14
15
7
OUT2
4
DATA
5
CLK
CLK1
DATA1
ELECTRICAL VOLUME
IC306
1 IN1
8 IN2
2
OUT1
7
OUT2
4
DATA
5
CLK
CLK2
DATA2
ELECTRICAL VOLUME
IC307
3D SOUND PROCESSOR
IC302
PRE AMP
IC308
PRE AMP
IC309
5
3
9
7
17
19
21
23
SP101
(SUB WOOFER)
POWER AMP
IC401
(US) (EXCEPT US)
49
VOL2-DATA
50
VOL2-CLK
48
AMP-MUTE
CLK2
DATA2
4
ST-BY
22
MUTE
CLK1
DATA1
59
C-MUTE
51
LINE-MUTE
46
P-CON
47
READY-H
41
X1
40
X2
X801
8.38MHz
15 USB-LED
LED DRIVE
Q702
D702
USB
4 S-LOW
LED DRIVE
Q711
1
D703 – D706
5 GRN-LED
LED DRIVE
Q710
(STANDBY (RED))
16 RED-LED
LED DRIVE
Q701
D701
27
KEY2
58
APC-ON/OFF
26
KEY1
44
INT
S701 – 706
KEY ACTIVE
SWITCH
Q802
55
USB-H
AUDIO-DET
+
D507
D509
D506
R-CH
33
S-DATA
S-CLK
S-TRB
VOL1-DATA
53
VOL1-CLK
54
H/P-MUTE
H/P-S/W
1
SYSTEM CONTROLLER
IC801
: AUDIO
: USB
SIGNAL PATH
R-ch is omitted due to same as L-ch.
R-CH
13
SDA
12
SCL
16
STRB
HIGH-PASS
FILTER
IC303
MUTING
Q303
MUTING
Q308
HEADPHONE
AMP
IC310
11
R-CH
HIGH-PASS
FILTER
IC304
+
LOW-PASS
FILTER
IC305
MUTING
CONTROL SWITCH
Q301
MUTING
Q752
MUTING
Q309
MUTING
Q310
R-CH
J701
PHONES
D454
D452
R
L
+
–
D451
+
–
D453
+
+
–
–
–
FRONT
R
L
CENTER
SPEAKER
J404
OFF
ON
AUTO
POWER
S801
14 – 11
V-1 – V-4
D707 – D709
8 – 6
V-5 – V-7
LED DRIVE
Q707 – Q709
D711
3 S-HIGH
LED DRIVE
Q712
2
D712
SURROUND MODE
(AC IN)
RECT
D992 – 995
T902
SUB POWER
TRANSFORMER
+5.6V
REGULATOR
IC991
D393
D397
RESET SIGNAL
GENETATOR
IC802
RESET
SWITCH
Q801
36
43
STOP
RESET
µCOM +5V
RY992
RELAY DRIVE
Q992
RY991
RELAY DRIVE
Q991
F901
LINE FILTER
LF901, 902
RECT
D902
D902
TH901
3
POWER CONTROL
IC901
D
4 VCC
1 FB/OCP
D906
D907
D905
+20V
REGULATOR
Q901
ISOLATOR
PC901
SWITCHING
IC902
RECT
D914
D914
RECT
D911
D911
RECT
D909
D909
POWER ON/OFF
CONTROL SWITCH
Q902, 906
IC903
POWER AMP
(IC401) B+
B+ SWITCH
Q451, 452
+10V
REGULATOR
Q453
FAN902
(FAN)
M
+5.6V
REGULATOR
IC392
+3.3V
REGULATOR
IC502
D394
LED B+
LED B+
DIG +10V
READY
+10V
+3.3V
+5V
B+ SWITCH
Q391, 392
+5V
REGULATOR
IC391
MUTING
CONTROL SWITCH
Q312, 313
MUTING
CONTROL SWITCH
Q305, 306
T901
MAIN POWER
TRANSFORMER
TO SATELLITE
SPEAKER (L)/(R)
(SS-US301)
(US)
(US)
D804
D806
(US)
(EXCEPT US)
B+ SWITCH
Q904, 905
(US)
(EXCEPT US)
(US)
(EXCEPT US)
(US)
(EXCEPT US)
Click on the first or last page to see other SS-US301 / SW-US301 / UZ-US301 service manuals if exist.