Sony HT-DDW880 / HT-DDW900 / STR-K880 / STR-K900 Service Manual ▷ View online
45
STR-K880/K900
– VIDEO Board –
IC203 NJM2595D
6dB
AMP
75
Ω
DRIVER
CONT1
CONT2
6dB
AMP
75
Ω
DRIVER
CONT1
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.SAVE
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-K880/K900
• IC Pin Function Description
DIGITAL BOARD IC1101 MB90488BPF-G-175E1 (SYSTEM CONTROL)
DIGITAL BOARD IC1101 MB90488BPF-G-175E1 (SYSTEM CONTROL)
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
PCM1608_RST
O
IC reset signal output to DAC
11
VSS
—
Ground terminal
12
PCM1608_ML
O
Latch signal output to DAC
13
PCM1608_MC
O
Clock signal output to DAC
14
PCM1608_MDI
O
IC data output to DAC
15
PCM1608_MDO
I
IC data input from DAC
16
T.SERIAL_CLK
O
Tuner clock signal output terminal
17
TUNER_DATA
O
Tuner 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
—
Tuning data output (not used)
22
TUNING_B
—
Tuning data output (not used)
23
VCC5
—
Power supply (+3.3V)
24
FL_RESET
O
FL driver reset signal output
25
FL_CLK
O
Not used
26
XM_RST
—
FL driver clock signal output terminal (not used)
27
FLASH2
O
FLASH2 signal output (not used)
28
FLASH1
O
FLASH1 signal output (not used)
29
SDA
I
EEPROM data signal input terminal
30
SCL
O
EEPROM clock signal output terminal
31
ENC_A
I
Input Encoder (A) signal input
32
ENC_B
I
Input Encoder (B) signal input
33
UPCON
—
Not used
34
UPCON_CLK
—
Not used
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
RDS_SIG
I
RDS signal detect input (connected to ground terminal) (not used)
44
MODEL
I
MODEL select input
45
TONE_EN_B
I
Tone control input from rotary encoder.
46
TONE_EN_A
I
Tone control input from rotary encoder.
47
XMDACMS
O
Not used
47
STR-K880/K900
Pin No.
Pin Name
I/O
Description
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_CLOCK
I
RDS clock signal input (Short to ground terminal)
53
RDS_DATA
I
RDS data signal input (Short to ground terminal)
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_DSP_INT
I
ADCC DSP interrept input
58
POWER_RY
O
Power relay control signal output
59
VOL_CL
O
Volume IC clock signal output
60
VOL_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_ENC (B)
I
Volume signal input from rotary encoder
65
VOL_ENC (A)
I
Volume signal input from rotary encoder
66
FRONT_RY
O
Front A speaker relay control signal output
67
SP_B_RY
O
Front B speaker control signal output
68
C/SB_RY
O
Center speaker relay control signal output
69
REAR_RY
O
Rear speaker control signal output
70
SW_RY
O
Sub woofer control signal output
71
ANALOG_SW_CLK
O
Analog switch IC clock signal output
72
BRIGEABLE_RY
O
Brigeable relay control output
73
DO
I
Frequency data signal input from the tuner
74
SLATCH
O
Latch signal output to the tuner
75
TUNED
I
Tuning a frequency signal input from the tuner
76
STEREO
I
Stereo tuning signal input from the tuner
77
RSTX
I
System reset input
78
MUTE
O
Muting signal output to the tuner
79
X1A
—
Not used
80
X0A
—
Ground terminal
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
ANALOG_SW_DATA
O
Analog switch IC data output
86
D595_DATA
O
I/O expander data output
87
D595_CLK
O
I/O expander clock output
88
D595_OE
O
I/O expander O/P enable output
89
D595_LAT
O
I/O expander latch signal output
90
SELECT 2
—
Not used
91
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
95
CLK
O
Clock signal output to DIR
96
CE
O
Chip enable signal output to DIR
48
STR-K880/K900
Pin No.
Pin Name
I/O
Description
97
DI
O
Data signal output to DIR
98
DO
I
Data signal input from DIR
99
ERROR
I
PLL error muting signal input from DIR
100
XSTATE
I
XSTATE data signal input from DIR
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