Sony HT-DDW790 / HT-DDW795 / STR-K790 Service Manual ▷ View online
37
STR-K790
– HDMI SW Board –
IC5005 SN74LVC1G3157DCKR
1
2
3
6
5
4
B2
GND
B1
S
VCC
A
IC5001 TMDS341PFCR
SCL1
R
INT
V
CC
3
GND
4
GND
65
GND
66
GND
72
GND
78
GND
10
GND 24
GND 30
GND 36
GND 37
GND
47
GND
59
GND
16
VCC
7
VCC
61
VCC
69
VCC
75
VCC
79
VCC
13
VCC 27
VCC 33
VCC
43
VCC
17
SDA1
2
NC
1
NC
20
NC
41
NC
60
HPD1
80
B31
48
A31
49
HPD2
62
HPD3
44
SCL2
64
SDA2
63
SCL3
46
SDA3
45
Y4 25
VSADJ
18
PRE
19
Z4
Y3
Z3
26
S1 21
S2 22
S3 23
SCL_SINK 38
HPD_SINK 40
SDA_SINK 39
Control Logic
R
INT
V
CC
B32
51
A32
52
R
INT
V
CC
B33
54
A33
55
Rx w/
R
INT
V
CC
(3.3V)
EQ
Rx w/
EQ
Rx w/
EQ
Rx w/
EQ
B34
57
A34
58
Rx w/
R
INT
V
CC
EQ
B21
67
A21
68
Rx w/
R
INT
V
CC
EQ
B22
70
A22
71
Rx w/
R
INT
V
CC
EQ
B23
73
A23
74
Rx w/
R
INT
V
CC
(3.3V)
EQ
B24
76
A24
77
R
INT
V
CC
R
INT
V
CC
R
INT
V
CC
Rx w/
R
INT
V
CC
EQ
Rx w/
EQ
Rx w/
EQ
Rx w/
EQ
TMDS
Drive
B11
5
A11
6
B12
8
A12
9
B13
11
A13
12
(3.3V)
B14
14
A14
15
3-to-1 MUX
28
29
TMDS
Drive
Y2
Z2
31
32
TMDS
Drive
Y1
Z1
34
35
OEB
42
TMDS
Drive
38
STR-K790
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
39
STR-K790
• IC Pin Function Description
DIGITAL BOARD IC1101 MB90F045PF-G-9033-SPE1 (SYSTEM CONTROLLER)
DIGITAL BOARD IC1101 MB90F045PF-G-9033-SPE1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
DATAO
I
Audio data signal input from DIR
2
GP9
I
GP9 signal input from DSP
3
BST
O
BST signal output to DSP
4
HCS
O
HCS signal output to DSP
5
HACN
I
HACN signal input from DSP
6
XRST
O
Reset signal output to DSP
7
PM
O
PM signal output to DSP
8
GP12
O
GP12 signal output to DSP
9
FL_LAT
O
FL driver latch signal output
10
PCM1609/1803_RST
O
IC reset signal output to DAC and ADC
11
VSS
—
Ground terminal
12
PCM1609_ML
O
Latch signal output to DAC
13
PCM1609_MC
O
Clock signal output to DAC
14
PCM1609_MDI
O
IC data output to DAC
15
PCM1609_MDO
I
IC data input from DAC
16
FL_CLK
O
FL driver clock signal output terminal
17
FL_DATA
O
FL driver data signal output terminal
18
HDOUT
I
HDOUT signal input from DSP
19
HDIN
O
HDIN signal output to DSP
20
HCLK
O
Clock signal output to DSP
21
TUNING_A
I
Tuning encoder input (not used)
22
TUNING_B
I
Tuning encoder input (not used)
23
VCC5
—
Power supply (+3.3V)
24
V_SW1
O
Composite video signal select 1 (not used)
25
V_SW2
O
Composite video signal select 2 (not used)
26
C LINK_DET
I
C link detect input (not used)
27
FLASH2/C LINK_RX
I
for FLASH programming
(MICLO)
28
FLASH1/C LINK_TX
O
for FLASH programming
(MDCLI)
29
SDA
I
EEPROM data signal input terminal
30
SCL
O
EEPROM clock signal output terminal
31
ENC_A
I
Input selector Encoder (A) signal input
32
ENC_B
I
Input selector Encoder (B) signal input
33
NC
—
Not used (Open)
34
NC
—
Not used (Open)
35
AVCC
—
Analog power supply (+3.3V)
36
AVRH
I
Analog reference voltage input (+3.3V)
37
AVSS
—
Analog ground terminal
38
ADCC
I
ADCC signal input
39
A/D1
I
Function key push signal input
40
A/D2
I
Function key push signal input
41
VERSION
I
Version setting input terminal (DESTINATION)
42
VSS
—
Ground terminal
43
TUNER SD
I
RDS signal detect input (AEP, UK only)
44
MODEL
I
MODEL select input
45
VAX CTRL
I
Vacs control input
40
STR-K790
Pin No.
Pin Name
I/O
Description
46
TUNER CLK
O
Tuner clock signal output
47
TUNER DATA
O
Tuner data signal output
48
STOP
I
AC off detect signal input
49
MD0
I
Operation mode setting input
50
MD1
I
Operation mode setting input
51
MD2
I
Operation mode setting input
52
RDS_CLK
I
RDS clock signal input (AEP, UK only)
53
RDS_DATA
I
RDS data signal input (AEP, UK only)
54
SIRCS
I
Data signal input from the remote control sensor
55
HP_DETECT
I
Headphone signal input
56
POWER_KEY
I
Power switch key detect signal input
57
ADCC_INT
I
ADCC interrupt input
58
POWER_RY
O
Power relay control signal output
59
VOL IC_CL
O
Volume IC clock signal output
60
VOL IC_DA
O
Volume IC data and latch signal output
61
PROTECTOR
I
Protector status detect signal input
62
HP_RY
O
Headphone relay control signal output
63
FUSE_DETECT
I
Fuse detect signal input
64
VOL_ENCODER (B)
I
Volume signal input from rotary encoder
65
VOL_ENCODER (A)
I
Volume signal input from rotary encoder
66
FRONT_RY/DG51_FB
O
Front A speaker relay control signal output
67
FRONT_B_RY/DG51_FA
O
Front B speaker control signal output
68
DC-CONTROL
O
Center speaker relay control signal output
69
C/REAR/SB_RY
O
Center, rear, surround back speaker control signal output
70
SW_RY
O
Sub woofer control signal output
71
NC
O
Not used (Open)
72
BRIDGABLE_RY
O
Bridgeable relay control output (not used)
73
DO/SD/ST
I
Frequency data signal input from the tuner
74
SLATCH
O
Latch signal output to the tuner
75
V_SW3
O
Composite video signal select 3 (not used)
76
V_SW4
O
Composite video signal select 4 (not used)
77
RSTX
I
System reset input
78
COMP MUTE
O
Composite video muting signal output (not used)
79
XIA
—
Not used (Open)
80
XOA
—
Not used (ground)
81
VSS
—
Ground terminal
82
X0
—
Connection for a crystal resonator
83
X1
—
Connection for a crystal resonator
84
VCC3
—
Power supply (+3.3V)
85
HDMI_S2
O
HDMI select 2 (not used)
86
HDMI_S1
O
HDMI select 1 (AEP, UK only)
87
HDMI_OED
O
HDMI output enable (AEP, UK only)
88
HDMI_PRE
O
HDMI PRE (AEP, UK only)
89
HDMI_CTRL
O
HDMI board control (AEP, UK only)
90
COMP_S2
O
Composite video select 2 (not used)
91
COMP_S1
O
Composite video select 1 (not used)
92
BST_SEL
O
BST signal output terminal
93
XMODE
O
Reset signal output to DIR
94
CKSEL 1
O
CKSEL control signal output to DIR
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