Sony STR-SE381 Service Manual ▷ View online
STR-SE381
— 21 —
— 22 —
3-9.
SCHEMATIC DIAGRAM — MAIN (2/3), POWER SECTION —
• See page 27 for IC Block Diagrams.
STR-SE381
— 23 —
— 24 —
3-10. SCHEMATIC DIAGRAM — MAIN (3/3), SP SW SECTION —
• See page 12 for SW Board Wiring Board. • See page 27 for IC Block Diagrams.
— 25 —
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
I/O
O
O
O
O
O
O
O
—
I
I
I
O
O
I
O
I
I
I
I
—
O
O
O
O
I
I
I
I
—
—
—
—
—
—
—
O
—
—
—
O
Description
Fluorescent indicator tube drive.
Power supply (+5V).
System clock.
System data.
PLL data input from TU001.
Chip enable output.
Chip enablr output.
Input for model select.
Standby relay ON/OFF control.
Protector detect input.
System reset terminal.
Auto stop detect input.
Stereo detect input.
Ground.
Speaker relay drive.
Surround Relay.
Power relay drive.
Not used.
A/D signal input terminal.
A/D3 key input terminal.
A/D2 key input terminal.
A/D1 key input terminal.
Power supply (+5V).
Reference voltage (+5V).
Ground.
Not used (Open).
Ground.
System clock (4.19MHz).
System clock (4.19MHz).
Mute drive output for
µ
PD2581V (IC701).
Prologic LED drive.
CINEMA STUDIO LED drive.
Hall LED drive.
Tuner mute drive output.
Pin Name
DIG7
DIG6
DIG5
DIG4
DIG3
DIG2
DIG1
+5V
S. CLK
S. DATA
PLL. DATA
S. CE (LC7288)
S. CE (LV100)
REAR-R
BRIDGE CABLE
PROTECT
RESET
AUTO-STOP
STEREO-IN
AVss
SP-RY
SURR-RY
POWER-RY
Not used
SIGNAL
A/D3
A/D2
A/D1
AVDD
AV. REF
GND
NC
Vss
X1
X2
IC. MUTE
PROLOGIC
CSTUDIO
HALL
T. MUTE
3-11. IC PIN FUNCTION
DISPLAY BOARD IC201 :
µ
PD78044FGF-064-3B9 (SYSTEM CONTROL)
— 26 —
Pin No.
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
I/O
O
O
—
I
I
I
I
—
I
I
O
—
—
O
O
I
I
I
I
I
O
O
O
O
O
O
O
O
O
O
—
O
O
O
O
O
O
O
O
O
Description
Volume up.
Volume down.
Standby LED drive.
System power ON/OFF.
RDS data input terminal (EXCEPT Australian, E, Saudi Arabia, PX model).
RDS clock input terminal (EXCEPT Australian, E, Saudi Arabia, PX model).
Stop signal input from NJM2103D (IC950).
Ground.
Sircs signal input.
Power switch input terminal.
5.1ch input LED.
Power supply (+5V).
Bass boost LED drive.
Line mute drive.
Surround Lch mute.
Input for model select.
Key in 4.
Key in 3.
Key in 2.
Key in 1.
Surround Rch mute.
Key out 1.
Key out 2.
Key out 3.
Key out 4.
Connect to –24V.
Fluorescent indicator tube drive.
Pin Name
VOLUME UP
VOLUME DOWN
STANDBY
SYS. POWER
RDS. DATA. IN
RDS. CLK. IN
STOP
Vss
SIRCS
POWER SW
5.1ch LED
+5V
BASS BOOST
FUNC. MUTE
SL MUTE
VERSION
K14
K13
K12
K11
SR MUTE
S15
S14
S13
S12
S11
S10
S9
S8
S7
VLOAD
S6
S5
S4
S3
S2
S1
DIG10
DIG9
DIG8
Fluorescent indicator tube drive.
Click on the first or last page to see other STR-SE381 service manuals if exist.