Sony HT-DDW995 / STR-K995 Service Manual ▷ View online
45
STR-K995
– VIDEO Board –
IC203 NJM2595D
CONT1
CONT2
CONT1
6dB
AMP
75
Ω
DRIVER
6dB
AMP
75
Ω
DRIVER
6dB
AMP
75
Ω
DRIVER
CONT1
CONT2
CONT2
1
2
3
4
5
6
7
8
9
10
11
22
21
20
19
18
17
16
15
14
13
12
BIAS
BIAS
BIAS
BIAS
BIAS
BIAS
BIAS
BIAS
BIAS
CH1_IN1
SW1
CH1_IN2
SW2
CH1_IN3
V+1
CH2_IN1
GND
CH2_IN2
GND
CH2_IN3
CH1_OUT
P.
S
A
VE
CH2_OUT
V+2
CH3_OUT
V-
2
CH3_IN1
V-
1
CH3_IN2
GND
CH3_IN3
2
3
4
5
6
7
8
9
12
11
13
15
16
1
14
10
M.OUT
SW5
DVD
SW3
V2
SW4
NC
VEE
V3
SW2
NC
GND
V1
SW1
VI.OUT
VCC
6dB
Amp
Amp
6dB
Amp
Amp
75
Ω
Driver
75
Ω
Driver
6dB
Amp
Amp
75
Ω
Driver
IC304 NJM2586AL
46
STR-K995
– HDMI RE Board –
IC3504, IC3521 SN74LV4052APWR
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
2Y0
1Y2
VCC
1Y1
1-COM
1Y0
1Y3
A
B
GND
GND
INH
2Y1
2Y3
2-COM
2Y2
1
VCCA
8
VCCB
7
SCLB
6
SDAB
5
EN
2
SCLA
3
SDAA
4
GND
1
2
59
58
56
55
53
52
50
49
60
57
54
51
42
43
41
44
45
46
47
48
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
38
39
40
35
34
32
31
29
28
26
27
30
33
36
37
25
22
21
23
24
CONTROL
LOGIC
NC
SDA1
SCL1
GND
B11
RX W/EQ
RX W/EQ
RX W/EQ
RX W/EQ
RX W/EQ
RX W/EQ
RX W/EQ
RX W/EQ
RX W/EQ
3-TO-1 MUX
3-TO-1 MUX
3-TO-1 MUX
3-TO-1 MUX
TMDS
DRIVE
TMDS
DRIVE
TMDS
DRIVE
TMDS
DRIVE
RX W/EQ
RX W/EQ
RX W/EQ
A11
VCC
B12
A12
B13
A13
VCC
B14
A14
GND
GND
VCC
VSADJ
PRE
NC
S1
S2
S3
GND
Y4
Z4
VCC
Y3
Z3
Y2
Z2
VCC
Y1
Z1
GND
GND
GND
SCL_SINK
SDA_SINK
HPD_SINK
HPD1
VCC
GND
A24
B24
VCC
A23
B23
GND
B22
VCC
A21
B21
GND
A22
GND
SCL2
SDA2
HPD2
VCC
NC
GND
A34
B34
VCC
A33
B33
GND
A32
VCC
A31
B31
GND
SCL3
B32
SDA3
HPD3
VCC
OE
NC
80 79
75
78
77
76
74
73
72
71
70
69
68
67
66
65
64
61
63
62
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
IC3503 TMD341APFCR
IC3507 PCA9517DP.118
47
STR-K995
• IC Pin Function Description
DIGITAL BOARD IC1501 CXD9718BQ (AUDIO DIGITAL SIGNAL PROCESSOR)
DIGITAL BOARD IC1501 CXD9718BQ (AUDIO DIGITAL SIGNAL PROCESSOR)
Pin No.
Pin Name
I/O
Description
1
VSS
—
Ground pin
2
XRST
I
Reset signal input from system control IC
3
EXTIN
I
Not used. (Fixed to “L”)
4
LRCKI3
I
Not used. (Fixed to “L”)
5
VDDI
—
Power supply pin (+2.6 V)
6
BCKI3
I
Not used. (Fixed to “L”)
7
PLOCK
O
Not used. (Open)
8
VSS
—
Ground pin
9
MCLK1
I
Clock signal input (13.9 MHz)
10
VDDI
—
Power supply pin (+2.6 V)
11
VSS
—
Ground pin
12
MCLK2
O
Clock signal output (13.9 MHz)
13
MS
I
Not used. (Fixed to “L”)
14
SCKOUT
O
Internal system clock signal output for 8CH D/A converter IC
15
LRCKI1
I
Sampling clock signal input from A/D converter IC
16
VDDE
—
Power supply pin (+3.3 V)
17
BCKI1
I
Bit clock signal input from A/D converter IC
18
SDI1
I
Audio IF data input from A/D converter IC
19
LRCKO
O
Sampling clock signal output for 8CH D/A converter IC
20
BCKO
O
Bit clock signal output for 8CH D/A converter IC
21
VSS
—
Ground pin
22
KFSIO
I/O
Audio clock signal (384fs/256fs) input/output for digital audio interface receiver IC
23 to 26
SDO1 to SDO4
O
Digital audio serial data output for 8CH D/A converter IC
27
SPDIF
O
Not used. (Open)
28
LRCKI2
I
Sampling clock signal input from A/D converter IC
29
BCKI2
I
Bit clock signal input from A/D converter IC
30
SDI2
I
Digital audio serial data input from digital audio interface receiver IC
31
VSS
—
Ground pin
32
HACN
O
Acknowledge signal output for system control IC
33
HDIN
I
Serial data input from system control IC
34
HCLK
I
Clock signal input from system control IC
35
HDOUT
O
Serial data output for system control IC
36
HCS
I
Chip select signal input from system control IC
37
GP12
I
GP12 signal input from system control IC
38, 39
GP13, GP14
O
Not used. (Open)
40
VDDI
—
Power supply pin (+2.6 V)
41
VSS
—
Ground pin
42
GP15
O
Not used. (Open)
43
CE0
O
SDRAM enable signal output
44
CS0
O
External memory chip select signal output for SDRAM IC
45
WE0
O
SDRAM write enable signal output for SDRAM IC
46
VDDE
—
Power supply pin (+3.3 V)
47
WMD1
I
Not used. (Fixed to “H” (+3.3 V))
48
VSS
—
Ground pin
49
WMD0
I
Not used. (Fixed to “H” (+3.3 V))
50
PAGE2
O
Not used. (Open)
51
VSS
—
Ground pin
48
STR-K995
Pin No.
Pin Name
I/O
Description
52, 53
PAGE1, PAGE0
O
Not used. (Open)
54
BOOT
I
Not used. (Fixed to “L”)
55
TST1
O
Not used. (Open)
56
BST
I
Boot stop signal input
57
MOD1
I
Operation mode signal input (L: 386fs, H: 256fs) (Fixed to “H” (+3.3V))
58
MOD0
I
Not used. (Fixed to “L”)
59
EXLOCK
I
Error detection signal input from digital audio interface receiver IC
60
VDDI
—
Power supply pin (+2.6 V)
61
VSS
—
Ground pin
62, 63
A17, A16
O
Not used. (Open)
64 to 66
A15 to A13
O
External memory address signal output for SDRAM IC
67
GP10
O
Not used. (Open)
68
GP9
O
GP9 signal output for system control IC
69
GP8
I
Audio signal input from digital audio interface receiver IC
70
VDDI
I
Power supply pin (+2.6 V)
71
VSS
—
Ground pin
72 to 75
D15/GP7 to D12/GP4
I/O
External memory data input/output for SDRAM IC
76
VDDE
—
Power supply pin (+3.3 V)
77 to 80
D11/GP3 to D8/GP0
I/O
External memory data input/output for SDRAM IC
81
VSS
—
Ground pin
82
A9
O
External memory address signal output for SDRAM IC
83 to 85
A12 to A10
O
External memory address signal output for SDRAM IC
86
TDO
O
Not used. (Fixed to “H” (+3.3V))
87
TMS
I
Not used. (Fixed to “H” (+3.3V))
88
XTRST
I
Not used. (Fixed to “H” (+3.3V))
89
TCK
I
Not used. (Fixed to “H” (+3.3V))
90
TDI
I
Not used. (Fixed to “H” (+3.3V))
91
VSS
—
Ground pin
92 to 97
A8 to A3
O
External memory address signal output for SDRAM IC
98, 99
D7, D6
I/O
External memory data input/output for SDRAM IC
100
VDDI
—
Power supply pin (+2.6 V)
101
VSS
—
Ground pin
102 to 105
D5 to D2
I/O
External memory data input/output for SDRAM IC
106
VDDE
—
Power supply pin (+3.3 V)
107, 108
D1, D0
I/O
External memory data input/output for SDRAM IC
109, 110
A2, A1
O
External memory address signal output for SDRAM IC
111
VSS
—
Ground pin
112
A0
O
External memory address signal output for SDRAM IC
113
PM
I
PLL initialization signal input from system control IC
114, 115
SDI3, SDI4
I
Not used. (Open)
116
SYNC
I
Not used. (Fixed to “H” (+3.3V))
117
TST2
I
Not used. (Fixed to “L”)
118
GP11
I
Not used. (Fixed to “L”)
119
TST3
I
Not used. (Fixed to “L”)
120
VDDI
—
Power supply pin (+2.6 V)
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