Block Diagram - Main Section - Sony STR-DE725 Service Manual

STR-DE725
3-2. BLOCK DIAGRAM – MAIN SECTION –
TM301
TUNER UNIT
ANTENNA
FM
FM L OUT 10
75Ω
AM AM R OUT 12 R CH R CH
4 14 15 13 2 3 1
EQ AMP
J301
IC302
3 1
PHONO L
CD L
J302
INPUT L
MD/DAT
OUTPUT L
J303
INPUT L
TAPE
OUTPUT L
IC001
IR LINK
DVD/LD 15
DET
5
SELECT
SWITCH
12
IC1005
A
3 A 11
B
2 B 10
C
1 C 9
J299
AUDIO L
VIDEO 3
VIDEO VIDEO SELECT
IC201
J201 7 V3 IN
VCC 16 +5V
MONITOR OUTPUT 1 M OUT IC202
-5V
INPUT 13 V1 IN VEE 8 3 REG 2 -15V
VIDEO 1
OUTPUT 15 V1 OUT
J202
INPUT 9 V2 IN
VIDEO 2
OUTPUT 11 V2 OUT
SW1 14
J203
SW2 10
TV/DBS INPUT 3 TV
SW3 4
DVD/LD INPUT 5
LD
SW4 6
16
AUDIO SELECT
IC301
SELECTOR
IC303
J305
3 4
TV/DBS INPUT L 1 4
2
DVD/LD INPUT L 2
1
OUTPUT L 6
7 8 VIDEO2 J304
6
INPUT L 7 8
5
OUTPUT L 9
10 11
VIDEO1
9
INPUT L 10 11
CONTROL CONTROL
14 15 13
14 15 13
DIGITAL AUDIO
I/F RECEIVER
IC1101
D OUT 35
CLK 29
IC1006
BCK 34
47 D IN
27 XO
X1101 LRCK 36
24.576MHz
26 XI X1301
49.152MHz
40 SWDT
IC1305
42 SCLK
ERROR
30
41 XLAT
11 RESET SRDT 38
60 61 62 97 57 58 56 111110109 76 78 77 2 75 67 14
81 V-A
82 V-B
83 V-E
80 V INH
— 9 —
DOLBY
DIGITAL AUDIO DECODER
IC1301
IC1108
IC1102
AUDATA0 41
22 SDATA1
AUDATA1 40
27 SDATA2
IC1305 AUDATA2 39
44 MCLK
IC1102
43 SCK
25 SCLK1 D0-7
28 SCLK2
SRAM
IC1102
IC1402
42 RCLK A0-7
IC1403 26 LRCLK1
IC1305
29 LRCLK2
CLOCK
13 10
DIVIDE
IC1305
30 CLK
D0-7
A0-7
D0-7
MEMORY LATCH
D0-7
IC1302 IC1303
IC1304
A8-15
5 EMRD
SCDOUT
19
21 EXTMEM
INTREQ 20
7 6 18 36
Q1203
16 15 17 20 19 18 25 32 35
AD0 AD7
SYSTEM
CONTROL
IC1201
AUDIO CODEC
RY301
IC405
IC1103
IC304 IC1104 IC1104 IC1104
30 LIN+ L OUT1 27
MUTE
Q302
BALANCE
29 LIN-
RV402
IC1105 IC407
L OUT3
23
9 SDTO
MUTE
Q304
39 MCLK1
4
BCLK IC1105 IC407
5 LRCK R OUT3 24
MUTE
AUDIO DSP
IC1401 Q354
113 SOA 6
BCK0 2 SDTI 1
115 LRCK SOB 3 7 SDTI 2
99 CLK1 SOC 4 8 SDTI 3
IC1106 IC406
L OUT2 25
MUTE
117 SIA
Q303
118 SIB 44 43 42 41 17
119 SIC
74 XWE
70 XOE
16
20 HD0
.
23 HD7
25
15 HA0 SOD 5
Q301
HRDY
13
RELAY
DRIVE
9 10 14 26
Q1201
MUTE
CONT
Q1202
21 22 24 36 23 37 6 5 4 3 7 108 85 49 50 48 84 79 106101102 103105104
XI XO
93 92
X1201
4MHz
— 10 —
VOLUME
RV401
VOL CONT
IC414
IC408
14 IN OUT 15 L
DATA
9
DATA
CLK
8 CLK
LAT
10 LAT
VOL CONT
IC416
IC410
3 IN OUT 2 C
A
IC410
14 IN OUT 15 W
DATA
9 DATA
CLK
8
CLK
LAT
10 LAT
VOL CONT
IC415
IC409
14 OUT SL
IN 15
DATA
9 DATA
CLK
8 CLK
LAT
10 LAT
UP
M
DOWN
B
Q120
LED
LED VOL
DRIVE
AC MUTE
PROTECTOR
RY HP
RY FRONT A
C
RY FRONT B
RY CENTER
RY WOOFER
RY REAR
DISP DATA 52 U DATA
DISP CLK 55 U CLOCK
DISP MR 51 U MREQ
SREQ 53 U SREQ
RESET 90 U REST
D
RY POWER 107 RY POWER
STOP 64 STOP
SOTO 10 SOTO
SINO 9 SINO
MD2 87 MD2
MD0 89
MD0
• RCH is omitted
• Signal Path
: FM
: PHONO
: CD
: DIGITAL