SONY STR DE925 Service Manual

STR-DE925/V919
Ver 1.1 2003. 06
Photo : STR-DE925
Dolby Laboratories Licensing Corporation. “DOLBY” the double-D symbol a “AC-3” and “PRO LOGIC” are trademarks of Dolby Laboratories Licensing Corporation.
SPECIFICATIONS
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 8 ohm loads, both channels driven, from 20 - 20,000 Hz; rated 110 watts per channel minimum RMS power, with no more than
0.09% total harmonic distortion from 250 milliwatts to rated output (USA model only).
Amplifier section
POWER OUTPUT Stereo mode
Surround mode
a)Depending on the sound field settings and the source, there may be no
sound output.
Dynamic power output
Harmonic distortion at rated output
Frequency response
(8 ohms 20 Hz - 20 kHz, THD 0.09%) 110 W + 110 W (8 ohms at 1 kHz, THD 0.8%) Front: 110 W/ch Centera): 110 W Reara): 110 W/ch
165 W + 165 W, 8 ohms 230 W + 230 W, 4 ohms
Less than 0.09% (with sound field, tone, and bass booster bypassed)
PHONO: RIAA
equalization curve ±0.5 dB
CD, TAPE, MD/DAT, TAPE/MD, DVD/LD, TV/DBS, VIDEO 1, 2, and VIDEO 3 :
10 Hz - 50 kHz +0.5/-2 dB (with sound field, tone, and bass booster bypassed)
Inputs (Analog)
b)78’ IHF c)Weighted network, input level
Inputs (Digital)
Outputs
US Model
Canadian Model
E Model
PX Model
STR-DE925
Chinese Model
STR-V919
PHONO:
Sensitivity: 2.5 mV Impedance: 50 kilohms
S/Nb): 75 dB (A, 2.5 mVc)) CD, DVD/LD, TAPE, MD/DAT, TAPE/MD, TV/DBS, VIDEO 1, 2, and VIDEO 3 :
Sensitivity: 150 mV
Impedance: 50 kilohms
S/Nb): 82 dB (A, 150 mVc))
DVD/LD (coaxial):
Sensitivity: -
Impedance: 75 ohms
S/N: 100 dB (A, 20 kHz LPF) DVD/LD, TV/DBS, MD/DAT (Optical):
Sensitivity: -
Impedance: -
S/N: 100 dB (A, 20 kHz LPF) TAPE, MD/DAT, TAPE/MD, (REC OUT); VIDEO 1, 2 (AUDIO OUT):
Voltage: 150 mV
Impedance: 10 kilohms WOOFER:
Voltage: 2 V
Impedance: 1 kilohms PHONES:
Accepts low - and high-impedance headphones
— Continued on next page —
FM STEREO FM-AM RECORDER
9-922-896-12
2003F16-1 © 2003.06
Sony Corporation
Home Audio Company Published by Sony Engineering Corporation
STR-DE925/V919
3-2. BLOCK DIAGRAM – MAIN SECTION –
DE925
MODEL TV/DBS
DVD/LD
MD/DAT
TAPE
VIDEO 3
MONITOR
MODEL
PHONO
INPUT
VIDEO
VIDEO 1
VIDEO 2
V919
TV/LD
DVD
CH, SP, MY MODEL
DVD/LD
TV/DBS
MD/DAT (INPUT)
MD/DAT
(OUTPUT)
COAXIAL
DVD/LD
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
INPUT
TV/LD
J253
DVD
J252
VIDEO 1
INPUT
FM
75
AM
L
LCD
LINPUT
LOUTPUT
L
LOUTPUT
LAUDIO
TM301
ANTENNA
J301
J302
J303
IC001
IR LINK
DET
IC002
IR LINK
DET
IC003
IR LINK
DET
IC004
IR LINK
DET J001
J299
J201
J202
J203
Y
C
Y
C
Y
C
TUNER UNIT
FM
AM
DO
4 14 15 13 2 3 1
DO
TUNED
IC007
7 1
13
15
9
11
3
5
S-VIDEO
3
5
13
5
13
16
TUNED
TMUTE
STEREO
TMUTE
STEREO
VIDEO SELECT
IC201
V3 IN M OUT
V1 IN
V1 OUT
V2 IN
V2 OUT
TV
LD
Y SWITCH
IC252
V1 O
TV
V1 I
C SWITCH
IC251
V1 O3
TV LD
V1 I
M O
S DATA
VCC
SW1
SW2
SW3
SW4
L OUT
R OUT
DATA
CLK
CE
S CLK
S LAT
16
VEE
8
14
10
4
6
15
14SW1 10SW2
4SW3 6SW4
1LDM O
15
14SW1 10SW2
4SW3 6SW4
1
10
12
R CHR CH
EQ AMP
IC302
31
15 14
SELECT
13
SWITCH
12
IC1005
4 3 2 1
IC202
-5V
3 2
REG
AUDIO SELECT
IC301
3
2
1
7 6 5
10
9
CONTROL
14
S DATA
5
11
A
10
B
9
C
IC1006
A B C
+5V
-15V
DO
TUNED
STEREO
60
61
62
DATA
V-A
81
AUTO STOP
V-B82
V-E
83
V INH
80
Y
J252
VIDEO 1
OUTPUT
C
Y
J251
MONITOR
OUTPUT
C
CE
CLK15DI
13
S LAT
S CLK
TMUTE
97
STEREO
TUNER MUTE
4
DVD/LD
VIDEO2
8
11
A
S LAT
S CLK
S DATA
57
58
56
111A110B109
DATA
LATCH
CLOCK
OUTPUT
VIDEO1
X1101
24.576MHz
B
C
76
78
C
SCLK
SWDT
INPUT
INPUT
77
J305
LTV/DBS
L
LOUTPUT
J304
LINPUT
L
LINPUT
DIGITAL AUDIO
I/F RECEIVER
IC1101
47
D IN
27
XO
26
XI
40
SWDT
42
SCLK
41
XLAT
11
RESET
2
XLAT
RESET
D OUT
LRCK
ERROR
SRDT
CLK
BCK
SELECTOR
1
2
6
7
9
10
CONTROL
35
29
34
36
30
38
75
SRDT
IC303
CE13CLK15DI
14
S LAT
S CLK
S DATA
X1301
49.152MHz
IC1305 IC1305
D1201
67
ERROR
4
8
11
IC1305
Q1203
14
ANALOG/DIG
IC1108
IC1102
IC1403 CLOCK
13 10
DIVIDE
MEMORY
D0-7
IC1302
IC1305
IC1102
IC1102
A0-7
A8-15
SYSTEM
CONTROL
IC1201
LATCH IC1303 IC1304
DOLBY
DIGITAL AUDIO DECODER
IC1301
22
SDATA 1
27
SDATA 2
44
MCLK
43
SCK
25
SCLK1
28
SCLK2
42
RCLK
26
LRCLK1
29
LRCLK2
30
CLK
D0-7
5
EMRD
21
EXTMEM
SCCLK
SCD IN
7
6CS18
IC1202
16
15
SCCLK
SCDOUT
AUDATA0 AUDATA1 AUDATA2
SCDOUT
INTREQ
17CS20
36
41 40 39
19 20
RESET
RESET
Q1204
19
18
INTREQ
SCDIN
SRAM IC1402
Q1205
25 32
AD0 AD7
D0-7
D0-7
A0-7
D0-7
35
HA0
IC304 IC1104 IC1104
AUDIO DSP
IC1401
SOA
113
BCK0
SOB
115
LRCK
SOC
99
CLK1
117
SIA
118
SIB
119
SIC
74
XWE
70
XOE
16 20
HD0
.
23
HD7
25
SOD
15
HA0
HRDY
XHDRD10XHDCS14XRST
XHDWR
9
26
IC1202
IC1202
21
22
24
36
XRST
XHDCS
XHDRD
XHDWR
BALANCE
RV402
79
106
PROTETOR
VOLUME
RV401
IC408
IC410
IC410
IC409
101
102
103
105
104
RY HP
RY FRONT A
RY FRONT B
RY CENTER
RY WOOFER
RY REAR
DISP DATA
DISP CLK
RY POWER
DATA CLK LAT
DATA CLK LAT
DATA CLK LAT
DISP MR
STOP
SOTO
SINO
MD2 MD0
• RCH is omitted
• Signal Path
107
52 55 51
53SREQ 90RESET
64 10
9 87 89
VOL CONT
IC414
14
IN
9
DATA
8
CLK
10
LAT
VOL CONT
IC416
3
IN
14
IN
9
DATA
8
CLK
10
LAT
VOL CONT
IC415
14
IN
9
DATA
8
CLK
10
LAT
M
: FM
: PHONO
OUT
OUT
OUT
OUT
Q120
LED
DRIVE
L
15
C
2
A
W
15
SL
15
UP
DOWN
B
LED VOL
AC MUTE PROTECTOR
RY HP RY FRONT A RY FRONT B
RY CENTER RY WOOFER RY REAR
U DATA U CLOCK U MREQ
U SREQ U REST RY POWER STOP
SOTO SINO MD2 MD0
C
D
AUDIO CODEC
IC1103
30
LIN+
29
LIN-
9
SDTO
39
MCLK1
4
BCLK
5
LRCK
6
2 3 4
5
13
Q1206
23
37
HRDY
SOD
7 8
Q1207
SDTI 1 SDTI 2 SDTI 3
CDTO
44
6
CDTO
CDTI43CCLK42CS41PD
5
CDTI
L OUT1
L OUT3
R OUT3
L OUT2
4
CCLK
17
3CS7PD108
IC1104
27
IC1105
23
IC1105
24
IC1106
25
Q301
RELAY DRIVE
85
RY DIRECT PASS
Q1201
MUTE CONT
Q1202
FUN MUTE
XI
X1201
4MHz
RY301
92XO93
IC405
MUTE Q302
IC407
MUTE Q304
IC407
MUTE Q354
IC406
MUTE Q303
LAT
CLK
DATA
48
50
49
84
EV STB
EV CLK
EV DATA
AC MUTE
: CD
: DIGITAL
• Abbreviation CND :Canadian EA :Saudi Arabia MY :Malaysia SP :Singapore CH :Chinese
— 9 — — 10 —
3-3. BLOCK DIAGRAM – POWER SECTION –
STR-DE925/V919
US,CND MODEL
J258
TV/DBS
J257
MONITOR
J255
VIDEO 1
J256
VIDEO 2
16
A
B
D
B
Q255,256
LEVEL
CONTROL
Q257,258
LEVEL
CONTROL
Q254
LEVEL
CONTROL
SL
PROTECTOR
RY FRONT A
RY CENTER
RY WOOFER
RY POWER
S-LINK
L
C
W
AC MUTE
RY HP
FRONT B
RY REAR
STOP
URESET
USREQ
UMREQ
UCLOCK
UDATA
SOTO
SINO
MD2 MD0
DOWN
LED VOL
Q251,252 SWITCH 3
2
IC254 IC254
IC254
5 6
UP
Q253
BUFFER
1
7
8
7
11
IC106
MOTOR
DRIVE
ST-I/O IC251
IC251
MUTE
Q501,503
3
2
POWER AMP(L)
IC501
13 VCC
+B
VCC
+VE
14 15
-B
6
1
POWER AMP(C/W)
13 VCC
+B
14 VCC 15
-B
8
1 MUT
6
POWER AMP(SL)
13 VCC
+B
14 15
-B
6
1
55
UP
56
DOWN
88
LED VOL
M BUS96TV
VIDEO 2
VIDEO 1
94
93
95
6
4
VEE
IN
NF
MUT
-VE
IC601
+VE
VEE
IN
NF
-VE
IN
IC701
VCC
+VE
VEE
IN
NF
MUT
-VE
49
51
20
19
MD0
MD2
SINO
38
FUNCTION
KEY
S106,110,114,118 S122,126,128,130
2
5
3
12
9
11
2+VE 3-VE
2
5
3
SOTO
AD KEY1
61
62
60
UDATA
UCLOCK
S105,109,113,117 S121,125,127,129
LIMITER
Q504
LIMITER
Q505
LIMITER
Q604
LIMITER
Q605
LIMITER
Q704
LIMITER
Q705
UMREQ
39
FUNCTION
KEY
59
USEQ
AD KEY2
BOOSTER
Q506
BOOSTER
Q507
BOOSTER
Q606
BOOSTER
Q607
BOOSTER
Q706
BOOSTER
Q707
AD KEY3
40
FUNCTION
KEY
S104,108,112 S116,120,124
CUR DET
Q508
CUR DET
Q608
CUR DET
Q708
AD KEY4
41
FUNCTION
KEY
S103,107,111 S115,119,122
PROTECTOR
Q547-549
D109,110
LED
DRIVE
Q109,110
2
1
LED V2
LED V1
MODE CONTROL
IC102
S102
MUTING
PROTECTOR
Q509,510
PROTECTOR
Q609,610
7
AD KEY5
43
LED MD/DAT
D111-113 D116-118
DRIVE Q111-113 Q118-116
4
3
LED V3
LED DVD/LD
44
FUNCTION
KEY
S135-139,146
D114,115
LED
DRIVE
Q114,115
6
LED TAPE
FUNCTION
KEY
S140-145,147 S132,133
LED
5
9
10
LED TV/DBS
LED PHONO
AD KEY6
Q511
Q611
8
LED CD
LED TUNER
72
SPEAKER
SWITCH
S134
D101
LED
DRIVE
Q102
90
SP B73SP A
LED MUTE
POWER KEY
74
S131
POWER
D104-106
LED
DRIVE
Q103,104
Q106
16
LED INDEX
F2
15
FL DRIVE FL DRIVE
RELAY DRIVE
Q601
14
LED EQ
LED SUR
FL CLK21FL LAT24FL CLEAR
25
26
34
24
LAT
CLK
DIN
FLOURESCENT
INDICATOR TUBE
RY602
D1202
D1203
D100,108 D119,122
LED
DRIVE Q107,108 Q119,122
87
89
92
LED SOUND FIELD
LED DOLBY DIGITAL
CLR
29
FL101
91
LED BASS B
LED ON/OFF
4LS29
CLK
3
DOUT
IC105IC104
5CL30
RELAY DRIVE
Q546
RELAY DRIVE
Q596
24
F1
RY501
RY502
RY601
RELAY DRIVE
Q645
RY503
RELAY DRIVE
Q544
RY701
RELAY DRIVE
Q749
X101
82XO83
XI
ABUS OUT
67
Q180
I/O
DIN FL DAT
BUFFER
SIRCS
URESET
RESET
STOP
ABUS A1 IN
LAT
98
63
R CH
S501
IMPEDANCE
SELECTOR
26
58
77
47
R CH
R CH
+B
R CH
J701
PHONES
• RCH is omitted
L
R
TM501 FRONT
SPEAKER
• Signal Path
:FM
:CD
• Abbreviation CND :Canadian
C
S(L)
S(R)
-B
SWITCH
Q612,615
8
4
Q101
Q182
I/O
BUFFER
SURROUND
J501
WOOFER
CNJ701
WIRELESS
REAR
SPEAKER
5
11
12
TM701
SPEAKER
SWITCH Q613,616
REMOTO CONTROL RECEIVER
RESET
Q105
I/R
CONT
IC181
15 16
X102
7.28MHz
IC101
IC404
+5V
3
+15V
-15V
+32V
+24V
-24V
D5V
D3.3V
D3.3V
DELAY +B SW
Q902
POWER
CONT IC901
1
3
6
D184-186
58
J204
S-LINK
1
IC403 +12V
3
IC401 +15V
1
IC402
3
SWITCH Q747,748
Q801 +32V
REG
3
3
3
REG
REG
REG
-15V REG
IC801
5V
REG IC802 +3.3V
REG IC803 +3.3V
REG
D901-904
1
3
2
F801
D801
F802
F803
D802-805
F804
D808
1
1
1
RELAY
DRIVE
Q901
F805
F2
F1
RY901
T902
TU +5V
TU +12V
IC702
+18V
3
REG
SWITCH
Q614,618
INV SW
Q617
IC809
IC809
+5V
3
1
REG
+5.6V
RESET
14
Q181
Q183,184
33
IC180
I/R
LED
DET
2
DRIVE
EA :Saudi Arabia MY :Malaysia SP :Singapore CH :Chinese
T901
EXCEPT E, EA, PX MODEL
F901
US,CND MODEL
JW925
E, EA, PX MODEL
VOLTAGE
SELECTOR
F904
JW903
MY, SP, CH MODEL
F903
US, CND, E, EA, CH, PX MODEL
VS901
MY, SP MODEL
CNJ901
CNJ901
CNP901
AC IN
— 11 — — 12 —
3-5. SCHEMATIC DIAGRAM — AMP SECTION —
STR-DE925/V919
, PX
, PX
, PX
— 15 — — 16 —
STR-DE925/V919
3-7. SCHEMATIC DIAGRAM — VIDEO SECTION —
• See pages 61 for IC Block Diagrams.
(Page31)
(Page27)
— 19 — — 20 —
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