Sony STR-DE525, Service Manual

Page: 8 / 40

STR-DE525/V515
— 9 — — 10 —
3-2. BLOCK DIAGRAM –MAIN SECTION–
L
24
IF DA
T
A
FM
AM
FM
75
Ω
AM
DO AST
OP
TMUTE STEREO D
ATA
CLK CE
L OUT
R OUT
TUNER UNIT
DO AUT
O ST
OP
TMUTE STEREO
S DA
T
A
S CLK S LA
T
R CH R CH
: FM
: CD (ANALOG)
• Signal Path
• RCH is omitted
R CH R
PHONO
L
R
CD
J201
R CH
L
R CH R
INPUT
L
R
OUT PUT
J202
R CH
L
R CH R
FRONT
L
R
REAR
J203
R CH
C
WOOFER
5.1 INPUT
TAPE/MD
M OUT 1
J201
IN
MONITOR
J202
J203
5.1 IN
TV/DVD
VIDEO 2
OUT
IN
VIDEO 2
OUT OUT
OUT
V1 IN 13
V1 OUT 15
V2 IN 9
V2 OUT 11
TV 3
LD
5
7 V3 OUT
8 VEE
16 VCC
14 SW1
10 SW2
2 SW5
4 SW3
6 SW4
3 2
VIDEO SELECT
IC201
-5V
REG
IC202
-15V
+5V
: VIDEO
3
2
1
10
9
6
4
11
8
CONTROL
CE
13
CLK
15
DI
14
AUDIO SELECT
IC302
MUTE
Q300
S LA
T
S CLK S DA
T
A
CONTROL
CE
45
CLK
47
D
ATA
46
D LA
T
S CLK S DA
T
A
3 1
LINE AMP
IC404
9
L OUT
S OUT
C OUT
41
39
38
MATRIX DECODER
IC401
DOLBY PROLOGIC
11
13
3 1
EQ AMP
IC303
30
29
27
26
28
25
CONTROL
CE
13
CLK
15
DI
14
SELECTOR
IC403
S LA
T
S CLK S DA
T
A
20k
L.P.F
ADM
5k/7k
L.P.F VOL/
MUTE
DEC
CE
4
CLK
2
DI
3
D LA
T
S CLK S DA
T
A
22
20
PROCESSOR
IC400
SURROUND
SL OUT
L OUT
24
23
22
MUTE SW
Q411
3
2
1
3 1
MUTE
Q304
5 7
MUTE
Q305
IC306
IC304
IC305
L.P.F
MUTE
Q302
4
2
3
6
5
BASS
TREBLE
TONE CONTROL
IC502
LEVEL SHIFT
STB
10
CLK
8
DI
9
T
LA
T
S CLK S DA
T
A
BOOST
DET
Q501,502
Q411 Q414
+5V
RY301
RELAY
DRIVE
Q308
5 7
IC307
LINE AMP
RV401
VOLUME
RV402
BALANCE
L
C
W
SL
A
POWER
SECTION
M
UP
DOWN
V-A 2
SYSTEM
CONTROL
IC103(1/2)
V-B 3
V-E 4
V INH 27
16
21
AUT
O ST
OP
23
STEREO
22
TUNER MUTE
S DA
T
A
S CLK
S LA
T
DO
AUT
O ST
OP
STEREO
TMUTE
19
S DA
T
A
18
S CLOCK
20
S LA
TCH
9
D LA
TCH
17
T
LA
TCH
D LA
T
T
LA
T
52
VOL
+
51
VOL-
3 51
8 7
VOL
MOTOR
IC106
UP
DOWN
6
S MUTE
49
BASS BOOST
41
DIRECT
P
ASS
LED SW
Q108
LED SW
Q143
D136
P RY
B
POWER
SECTION
: PHONO