Sony HT-DDW995 / STR-K995 Service Manual ▷ View online
41
STR-K995
• Waveforms
– DIGITAL Board –
– DIGITAL Board –
1
IC1501
9
(MCLK1)
1 V/DIV, 40 ns/DIV
72 ns
3.3 Vp-p
2
IC1907
tj
(X1)
1 V/DIV, 20 ns/DIV
80
n
s
4 Vp-p
3
IC1301
ws
(XIN)
1 V/DIV, 40 ns/DIV
81 ns
4.4 Vp-p
1
IC3511
ig
(XTAL_IN)
1 V/DIV, 20 ns/DIV
35
n
s
3.1 Vp-p
2
IC3519
qd
(XIN)
1 V/DIV, 40 ns/DIV
100
n
s
2.2 Vp-p
– HDMI RE Board –
42
STR-K995
SYSTEM
CLOCK
MANAGER
FUNCTION
CONTROL
INTERFACE
SERIAL
INPUT
INTERFACE
4X/8X
OVER SAMPLING
DIGITAL
FILTER
WITH
FUNCTION
CONTROLLER
ENHANCED
MULTI-
LEVEL
DELTA-
SIGMA
MOJULE
ZERO DETECT
DAC
LPF
DAC
LPF
DAC
LPF
DAC
LPF
DAC
LPF
DAC
LPF
RST
SCKI
SCKO
BCK
TEST
VDD
DGND
DATA1
DATA2
DATA3
ZEROA
LRCK
37
38
39
40
42
43
44
45
46
47
48
41
ZERO1
ZERO2
ZERO3
ZERO4
ZERO5
ZERO6
NC
NC
VOUT6
VOUT5
VOUT4
VOUT3
1
2
3
4
5
6
7
8
9
10
11
12
VOUT2
VOUT1
VCOM
VOUT7
AGND5
VCC5
AGND6
VOUT8
AGND4
VCC4
AGND3
VCC3
13
14
15
16
17
18
19
20
21
22
23
24
ML
MC
MDI
MDO
ZERO8
DATA4
ZERO7
NC
VCC1
AGND1
VCC2
AGND2
36 35 34 33
32 31 30
29
28
27
26
25
• IC Block Diagrams
– DIGITAL Board –
– DIGITAL Board –
38 37
36
23 24
1
2
3
4
5
44
8
9
10
46
17
22
21
20
30
35
25
26
27
28
29
32
33
34
16
45
13 14 15
47
40
41
48
CLK
39
XSEL
CE
DI
EMPHA
AUDIO
DISEL
SPDIF
DINO
DINI
DIN2
6
D.GND
7
DVDD
11
AVDD
12
AGND
DOSEL0
R
VIN
LPF
CKSEL0
XSTATE
18
DGND
19
DVDD
XIN
XOUT
XMCK
DVDD
31 DGND
DO
CSFLAG
F0/P0/C0
F1/P1/C1
F2/P2/C2
VF/P3/C3
LOCK
BPSYNC
ERROR
DATAO
DOSEL1
CKOUT
BCK
LRCK
CKSEL1
MODE0
MODE1
42
DGND
43
DVDD
XMODE
TIMING
MICROCOMPUTER
INTERFACE
SAMPLING
FREQUENCY
C BIT
DETECT
PA/PB
DETECT
LOCK
DETECT
SYSTEM
RESET
MODE
SELECT
INPUT
CIRCUIT
DATA
DEMODULATOR
PLL
CLOCK
1
2
3
4
5
6
7
15
16
14
13
12
11
10
9
8
STROBE
STROBE/
DECODER
B
1C3
1C2
1C2
1C1
1C0
1C0
1Y
GND
STROBE
A
A
SC3
SC2
SC2
2C1
2C0
2C0
2Y
VCC
IC1301 LC89056W-E
IC1302 TC74ACT153F (EL)
IC1452 PCM1602APT
43
STR-K995
IC1401 PCM1803DBR
– DIGITAL Board –
IC501, IC601, IC701 uPC2581V-S
– MAIN Board –
PROTECTOR
DRIVE
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
PRE
DRIVE
PRE
DRIVE
BIAS CIRCUIT
REG
MUTE
+VOUT1
–VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
–VOUT2
+VOUT2
VCC1
VCC2
VEE
DRIVE
VINL
1
VINR
2
VERF1
3
VERF2
4
VCC
5
AGND
6
PDWN
7
BYP
AS
8
FSYNC
9
LRCK
10
MODE1
20
MODE0
19
FMT1
18
FMT0
17
OSR
16
SCKI
15
VDD
14
DGCD
13
DOUT
12
BCK
11
Single-End
/Differential
Converter
5 th Order
Delta-Sigma
Modulator
5 th Order
Delta-Sigma
Modulator
Reference
Single-End
/Differential
Converter
× 1/64 (× 1/128)
Decimation
Filter
with
DC Cut Filter
Power Supply
Clock and Timing Control
Serial
Interface
Mode/
Format
Control
44
STR-K995
IC100 PT6315
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
LED1
LED2
LED3
LED4
OSC
DOUT
DIN
CLK
STB
KEY1
KEY2
VSS
VDD
SEG1/KS1
SEG2/KS2
SEG3/KS3
SEG4/KS4
SEG5/KS5
SEG6/KS6
SEG7/KS7
SEG8/KS8
SEG9/KS9
SEG10/KS10
SEG20/GRID9
SEG21/GRID8
SEG22/GRID7
SEG23/GRID6
SEG24/GRID5
GRID4
GRID3
GRID2
GRID1
VDD
VSS
SEG11/KS11
SEG12/KS12
SEG13/KS13
SEG14/KS14
SEG15/KS15
SEG16/KS16
VEE
SEG17/GRID12
SEG18/GRID11
SEG19/GRID10
– DISPLAY Board –
IC101 TC74ACT08P
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1A
1B
1Y
2A
2B
2Y
GND
VCC
4B
4A
4Y
3B
3A
3Y
Click on the first or last page to see other HT-DDW995 / STR-K995 service manuals if exist.