DOWNLOAD Sony STR-KM2 / STR-KM3 Service Manual ↓ Size: 5.28 MB | Pages: 82 in PDF or view online for FREE

Model
STR-KM2 STR-KM3
Pages
82
Size
5.28 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
str-km2-str-km3.pdf
Date
PREV: Sony HT-M2 / HT-M3 Service Manual

Sony STR-KM2 / STR-KM3 Service Manual ▷ View online

STR-KM2/KM3
45
•  IC Block Diagrams
IC2007  TC74VHC393FT (ELK) (DIGITAL AUDIO BOARD (3/4))
IC2033  TC7SH126FU (DIGITAL AUDIO BOARD (2/4))
14
13
12
11
10
9
8
1
2
3
4
5
6
7
Q
A
Q
B
Q
C
Q
D
A
CLEAR
VCC
Q
A
Q
B
Q
C
Q
D
A
CLEAR
GND
IC2020  S-80929CNMC-G8ZT2G (DIGITAL AUDIO BOARD (2/4))
IC2034  S-80929CNMC-G8ZT2G (DIGITAL AUDIO BOARD (1/4))
IC2032  TC74VHC157FT (EKJ) (DIGITAL AUDIO BOARD (2/4))
IC2804  TC74VHC157FT (EKJ) (DIGITAL AUDIO BOARD (3/4))
VDD 2
OUT 1
VSS 3
+
–
VREF
CD
5
NC
4
DELAY
CIRCUIT
SELECT 11
1
1A 2
3
4
5
6
7
INPUT
INPUT
OUTPUT
OUTPUT
1A
1B
1Y
2A
2B
2Y
1B
1Y
2A
2B
2Y
GND 8
V
CC
STROBE
16
4A
15
14
13
11
12
11
10
INPUT
INPUT
OUTPUT
OUTPUT
G
4B
4Y
3A
4A
4B
4Y
3A
3B
9
3B
3Y
3Y
S
GA
TE
IN A
GND
VCC
OUT
-Y
1 2 3
4
5
IC2019  74AHC1G08GW-125 (DIGITAL AUDIO BOARD (2/4))
IN
IN
GND
1
2
3
5
4
VCC
OUT
Ver. 1.2
STR-KM2/KM3
46
IC2123  WM8768GEDS/R (DIGITAL AUDIO BOARD (4/4))
IC2805  TC74VHC08FT (EKJ) (DIGITAL AUDIO BOARD (3/4))
IC2421, IC2812  TK11150CSCL-G (DIGITAL AUDIO BOARD (4/4))
IC3533  MM1839A50NRE (HDMI RE BOARD (2/2)) (KM3)
IC2303  TC7WHU04FK (DIGITAL AUDIO BOARD (3/4))
IC3527  TC7WHU04FK (HDMI RE BOARD (2/2)) (KM3)
1
MODE
18 VMID
17 VREFP
16 VREFN
20 NC
19 NC
22 VOUT1R
21 VOUT1L
24 VOUT2R
23 VOUT2L
26 VOUT3R
25 VOUT3L
28 AVDD
27 AGND
15 TESTREF
2
MCLK
3
BCLK
5
DVDD
6
DGND
4
LRCLK
11
ML/I2S
12
MC/IWL
13
MD/DM
14
MUTE
7
DIN1
8
DIN2
9
DIN3
10
DNC
AUDIO
INTERFACE,
DIGITAL
FILTERS
CONTROL
INTERFACE
STEREO
DAC
STEREO
DAC
STEREO
DAC
LOW
PASS
FILTER
LOW
PASS
FILTER
LOW
PASS
FILTER
VCC 1Y
3A 2Y
1A 3Y
2A GND
1
2
3
4
8
7
6
5
A0
B0
Y0
A1
B1
Y1
GND
VCC
A3
B3
Y3
A2
B2
Y2
1
2
3
4
5
6
7
14
13
12
11
10
9
8
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
Ver. 1.2
STR-KM2/KM3
47
IC2806  LC89075W-H (DIGITAL AUDIO BOARD (3/4))
DGND
DVDD
RXOUT
DGND
RXIN8
RXIN7
OPTICAL SAT/CATV
HDMI MCK
SD1
Stereo
ADC
Group: D (input)
ADC
ADC
Error
Data mute
MPIN4 (Error)
MPIN5 (Data mute)
MPIN6 (Non-PCM)
Non-PCM
C bit info
Clock & data
GROUP: A
GROUP: B
GROUP: C
GROUP: D
DIR
GROUP: A
GROUP: B
GROUP: C
GROUP: D
Group: C (input)
S/PDIF
S/PDIF
Micro
Controller
Interface
Oscillation
Amplifier
Power-on
Reset
Output
Data
Level
Detector
ADC data
DIR data
Group: A data
Group: B data
Group: C data
Group: D data
ADC DIR Group: A Group: B Group: C Group: D
PVDD
64
LPF
1
PGND
2
3
HDMI BCK
4
HDMI LRCK
5
SD0
6
7
SD2
8
SD3
9
GND
10
GND
11
GND
12
DSP MCK
13
DSP BCK
14
DSP LRCK 
15
DSP DOUT
16
DGND
17
DVDD
18
DSP SID
19
DSP SIE
20
DSP SIF
21
MPOUT4
22
ERROR
23
XSTATE
24
NPCM
25
MPIO1
26
MPIO2
27
MPIO3
28
MPIO4
29
XMCK
30
XOUT
31
XIN
32
COAXIAL
63
USB SPDIF
62
HDMI SPDIF
61
ARC SPDIF
60
OPTICAL GAME
59
58
57
56
55
54
53
52
RXIN1A
51
RXIN2A
50
RXIN3A
49
VCOM
48
AGND
47
AVDD
46
ADINL
45
ADINR
44
DGND
43
DVDD
42
DSTATE
41
DIR INT
40
DIR_MISO
39
DIR_MOSI
38
DIR_SPICLK
37
DIR_CE
36
XMODE RESET
35
DVDD
34
DGND
33
MUX
15:3
MUX
(4x6):4
DIR
Master clock
Group: A (input)
Group: B (input)
Bit clock
LR clock II DSD
LR clock II DSD
3,4/6ch data
5,6/6ch data
1,2/6ch data II DSD
2ch data II DSD
Master clock
Bit clock
II 1,2/8ch data
II 3,4/8ch data
II 5,6/8ch data
II 7,8/8ch data
II Error
II Data mute
II Non-PCM
MUX
(4x5):4
PGA
PGA
ATT
Group: C (input)
Group: C (output)
LR clock II DSD
2ch data II DSD
ADC data II C bit info
Master clock
Bit clock
II S/PDIF
II S/PDIF
II S/PDIF
II S/PDIF
STR-KM2/KM3
48
IC100  PT6315 (DISPLAY BOARD)
IC3507  TC74LCX541FT (EKJ) (HDMI RE BOARD (2/2)) (KM3)
11
Y8
12
Y7
13
Y6
14
Y5
15
Y4
16
Y3
17
Y2
18
Y1
19
G2
20
Vcc
10 GND
9 A8
8 A7
7 A6
6 A5
5 A4
4 A3
3 A2
2 A1
1 G
1
2
3
4
5
4-bit latch
24-bit output latch
12-bit shift register
Data selector
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
Serial
interface
OSC
Timing generator
key scan
Display memory
24 bits x 12 words
Key data memory
(2 x 16 bits)
Command decoder
segment driver
Grid driver
Multiplexed driver
39
40
41
42
43
44
SW1
SW2
SW3
SW4
OSC
DOUT
DIN
CLK
STB
KEY1
KEY2
VSS
VDD
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
GRID9
GRID8
GRID7
GRID6
GRID5
GRID4
GRID3
GRID2
GRID1
VDD
VSS
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
VEE
SEG17
GRID11
GRID10
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