Sony HT-DDW2500 / STR-KM2500 Service Manual ▷ View online
STR-KM2500
STR-KM2500
13
13
6-1. BLOCK DIAGRAM - MAIN Section -
SECTION 6
DIAGRAMS
• SIGNAL PATH
SYSTEM CONTROLLER
IC1101 (1/3)
SWITCH
IC1014
78 DPSIA
79 DPSIB
88 DPLRCK
94 DPFSCK
89 DPBCK
16 FLAG1
DSP
SPDIF(LA
T)
21
XRST
8
DSP
INT
47
XSPIDS
XRESET
FLAG0
DSP
IC1501
D/A CONVERTER
IC1452
2 MCK
3 BCK
4 LRCK
9 DIN3
7 DIN1
8 DIN2
VO1L 21
VO1R 22
VO2L 23
VO2R 24
VO3L 25
VO3R 26
DPDVLRCK
64
DPDVBCK
DPSOA
DPSOB
DSPOC
87
65
70
86
DSP
SPI CLK
: AUDIO (ANALOG)
: AUDIO (DIGITAL)
143
142
X1302
25MHz
XTAL
CLKIN
97 XNONAUDIO
122 121 15
20
MOSI
19
MISO
18
SPICLK
MOSI
MISO
125 127 126
DAC_ML
12
DAC_MC
13
DCAC_INT
57
DAC_MDI
14
DAC_MUTE
15
11 13 14
ML/I2S
MD/DM
MUTE
12
MC/IWL
R-CH
R-CH
SL
L, C, SW, SL
C
L
SW
B
• R-ch is omitted due to same as L-ch.
D1503
D1504
D1501
EEPROM
IC1131
DIR_DO
DIR_DI
DIR_CLK
DIR_CE
DIR_ERROR
DIR_XMODE
DIR_XST
ATE
DIR_DA
TA0
1
DOUT
7
SCKI
12
BCK
8
LRCK
14
VINL
13
VINR
6
XMCK 20
DATAO 16
BCK
15
LRCK
14
CKOUT 13
AUDIO 24
47
OPTICAL
SAT IN
DIGITAL OPTICAL
RECEIVER
IC1351
WAVE
SHAPER
IC1303
DIGITAL AUDIO
INTERFACE RECEIVER
IC1301
DIN2
J1301
5
COAXIAL
DVD/BD IN
DIGITAL
A/D CONVERTER
IC1401
21
22
X1301
12.288MHz
XOUT
XIN
DIR_CKCEL1
94
D1301
83
82
X1
X0
29 SDA
30 SCL
X1101
24MHz
DIN1
4
CKSEL1
DOUT
DI
CLK
CE
XMODE
XST
ATE
ERROR
A_AUDIO
A
98 97 95 96
99
100
93
R-CH
35 36 38 37 48 17 34
RESET SIGNAL
BUFFER
IC1111
RSTX 77
(Page 14)
(Page 14)
STR-KM2500
STR-KM2500
14
14
SYSTEM CONTROLLER
IC1101 (2/3)
10
DA
TA
11
CLK
L CH
R CH
DO
DI
INL1 (TUNER_L)
63
VOL_IC_CLK
25
VOL_IC_DA
TA
24
89
LOUT 76
FM 75
Ω
COAXIAL
91
90
92
90
92
TV IN
ANTENNA
TUNER (FM/AM)
AM
INPUT SELECTOR,
ELECTRICAL VOLUME
IC400
R-CH
FM ANT
GND
AM ANT
GND
CLOCK
CE
DO/SD/ST
TUNER_DATA
TUNER_CLK
SLATCH
TUNER_DATA
TUNER_CLK
SLATCH
INL7
51
SA-CD/CD
IN
L
R
INL9
47
INL11
43
J402
SAT IN
L
R
L
R
R-CH
R-CH
R-CH
INL5
55
SLIN
68
CIN
70
SWIN
71
LIN
72
43
SD
TUNER_SD
• SIGNAL PATH
: TUNER
: AUDIO (ANALOG)
A_AUDIO
A
FLOUT 14
SL
L, C, SW, SL
C
L
SW
B
+VOUT1 2
NF1 5
-VOUT1 3
LIMITER
Q701, 702
BOOSTER
Q703
BOOSTER
Q704
CURRENT
DETECT
Q711, 712
IN1
6
POWER AMP
IC701
AF POWER
PROTECT
Q720
RELAY DRIVE
Q375
RELAY DRIVE
Q365
PROTECT
OR
61
67
VACS CTRL
45
PROTECT
SWITCH
Q320, 321, 325
+VOUT1 2
NF1 5
-VOUT1 3
LIMITER
Q601, 602
BOOSTER
Q603
BOOSTER
Q604
IN1
6
COUT 16
+VOUT2 12
NF2 9
-VOUT2 11
LIMITER
Q651, 652
BOOSTER
Q753
BOOSTER
Q754
CURRENT
DETECT
Q761, 762
IN2
8
POWER AMP
IC601
AF POWER
PROTECT
Q770
CURRENT
DETECT
Q611, 612
15
SWOUT
+
−
+
−
RY365
RY375
R-CH
+
−
+
−
HP_DETECT
HP_R
Y
FRONT
A
C/SW/REAR/SB_R
Y
55 62 66
D1110
D1109
D1107
J790
PHONES
TB602
L
R
FRONT
TB606
SPEAKERS
SUB
WOOFER
VIDEO IN/
PORTABLE AUDIO IN
J2000
R-CH
RELAY DRIVE
Q360
RY360
6-2. BLOCK DIAGRAM - AMP Section -
(Page 13)
(Page 13)
STR-KM2500
STR-KM2500
15
15
6-3. BLOCK DIAGRAM - POWER SUPPLY Section -
(AC IN)
F901
B+
B-
FL -20V
TU +9V
DSP +3.3V
DSP +1.2V
A+3.3V
A-7V
A+5V
A+7V
SYS +3.3V
58
POWER_RY
63
FUSE_DETECT
SYSTEM CONTROLLER
IC1101 (3/3)
75 FL_DATA
74 FL_CLK
76 FL LAT
74 FL_CLK
76 FL LAT
FLUORESCENT
INDICATOR TUBE DRIVER
IC100
7
DIN
8
CLK
9
STB
FLUORESCENT
INDICATOR
TUBE
FL101
SEG1 – SEG16,
SEG17
14 – 29, 31
GRID1 – GRID1
1
42 – 32
54 SIRCS
ROTARY
ENCODER
RV101
LEVEL SHIFT
IC101
REMOTE CONTROL
RECEIVER
IC103
INPUT
SELECTOR
I/
S114 – 119
58 POWER KEY
39 A/D1
S103, 104
40 A/D2
32
31 ENC_A
S152
ENC_B
ROTARY
ENCODER
RV102
MASTER
VOLUME
VOLUME
65
64 VOL_ENCODER(B)
VOL_ENCODER(A)
48
STOP
SUB POWER
TRANSFORMER
T902
RELAY DRIVE
Q901
RECT
D950 – 953
RECT
D910 – 913
RECT
D921
AC OFF DETECT
Q990
RY901
D990, 991
+3.3V
REGULATOR
IC1904
+9V
REGULATOR
IC1902
+5.8V
REGULATOR
IC4100
+7V
REGULATOR
IC350
-20V
REGULATOR
Q930
+5V
REGULATOR
IC1001
+3.3V
REGULATOR
IC1903
+3.3V
REGULATOR
IC1905
+1.2V
REGULATOR
IC1002
MAIN POWER
TRANSFORMER
T901
RECT
D4001
-7V
REGULATOR
IC352
F4002
F4001
FL+5V
+5V
REGULATOR
IC1031
RECT
D941, 942
STR-KM2500
STR-KM2500
16
16
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω and
1
/
4
W or less unless otherwise
specifi ed.
• f :
internal
component.
• 2 : nonfl ammable resistor.
• 5 : fl usible resistor.
• C : panel designation.
• 5 : fl usible resistor.
• C : panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
• Voltages are taken with a VOM (Input impedance 10 M
• Voltages are taken with a VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J :
J :
AUDIO
(DIGITAL)
F :
AUDIO
(ANALOG)
f :
TUNER
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
•
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
C
B
These are omitted.
E
Q
C E
B
These are omitted.
• Circuit Boards Location
Note: The components identifi ed by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specifi ed.
DISPLAY board
MAIN board
DIGITAL AB board
TUNER (FM/AM)
DCDC CONVERTER board
STANDBY board
POWER board
DCAC board
HEADPHONE board
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
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