Sony STR-W777 Service Manual ▷ View online
— 59 —
• Display section
IC505 MC14053BCP
2
3
14
1
f04
13 f
12 VCC
11 NC
10 NC
15 f03
5
GND
6
BIAS
C
7
NC
8
NC
9
NC
4
16 f02
17 f01
18 RESET
RESET
C
PREF
LINE
NF
LINE
IN
REFFERENCE
CURRENT
BPF
DET
BPF
DET
BPF
DET
BPF
DET
DET
RESET
Bias
1
2
3
4
5
6
7
8
B1
B0
C.COM
CO
INH
VEE
VSS
VDD
B.COM
A.COM
A1
A0
A
B
C
C1
9
10
11
12
13
14
15
16
OPEN
OPEN
OPEN
• Panel/Motor section
IC891 LB1641
IC506 BA3833F
1
2
3
4
5
6
7
8
9
10
GND
MOTOR
DRIVE
NOISE
FILTER
CLAMP
FWD.IN
REV.IN
VCC 1
VCC 2
NOISE
FILTER
MOTOR
DRIVE
MOTOR
DRIVE
MOTOR
DRIVE
T.S.D
O.C.P
FWD/REV/STOP
CONTROL LOGIC
— 60 —
• Abbreviation
FL : Fluorescent indicator tube
5-23. IC PIN FUNCTION
• IC501 SYSTEM CONTROL (uPD780016AYGF-012-3BA)
Pin No.
1
2
3
4
5
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
39
40
I/O
O
O
O
O
O
O
O
—
—
O
I
—
O
I
I
I
I
I
I
I
I
O
—
—
I
I
I
I
I
I
I
I
—
—
O
O
O
O
—
—
Description
Not used
Surround level A signal output
Surround level B signal output
Not used
DBFB level 2 signal output
DBFB level 1 signal output
Mute signal output
Ground
Test terminal (Connected to ground)
X’ tal (5MHz)
Power supply (+5V)
X’ tal (32kHz)
Reset signal input
RDS clock input
RDS data input
Rotary encoder (VOLUME) pulse input
Rotary encoder (MULTI JOG STATION) pulse input
Spectrum analyzer control output
Power supply (+5V)
Analog power supply (+5V)
Audio input for VACS control
Spectrum analyzer data input
Key data input
Back up signal input
Analog ground
Ground
FL data output
FL clock output
FL latch output
FL reset output
Ground
Ground
Pin Name
CLK
LEVEL A
LEVEL B
PROLOGIC RLY
DBFB B2
DBFB B1
TA MUTE
GND
TEST
X2
X1
VDD
XT2
XT1
RESET
RDS CLK
RDS DATA
VOL A
VOL B
JOG A
JOG B
SPEANA CONT
VDD
A VDD
VACS
SPEANA0
SPEANA1
KEY0
KEY1
KEY2
KEY3
ACCUT
A VSS
GND
FL DATA
FL CLK
FL LAT
FL RESET
GND
VSS
— 61 —
Pin No.
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
I/O
I
I
I
O
—
—
—
—
O
O
O
O
O
O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
—
O
O
I
I
I
I
I
—
I
Description
AV INPUT (VIDEO 2) switch input
Sliding (panel) sensor signal input
Remote sensor signal input
Spectrum analyzer reset output
Ground
Soft test terminal
Audio indicator output
LED driver output
Serial data input/output
Serial clock input/output
LED driver output
Not used
LED driver output
Ground
LED driver output
Destination terminal
Model select terminal
Ground
VCD select terminal “L”: NON-VCD (Connected to ground)
Pin Name
AV IN
SENSOR IN
SIRCS IN
SPEANE RST
GND
GND
GND
GND
SOFT
SEN
MOVIE A
MOVIE G
MUSIC A
MUSIC G
I2C DATA
I2C CLK
GAME A
GAME G
PLACE A
PLACE G
PFILE A
PFILE G
GROOVE
+/–
JOG
ENTER
EFECT
KEYCON G
KEYCON A
NON STOP
VSS
DELAY
REVER B
SUFFIX0
SUFFIX1
SUFFIX2
SUFFIX3
WJ1/WJ3
GND
VCD
— 62 —
• Abbreviation
GEQ : Graphic Equalizer
PLL : Phase Locked Loop
PLL : Phase Locked Loop
Pin No.
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I/O
—
O
O
O
O
O
I
I
O
I
O
O
O
O
O
O
O
O
O
O
Description
Ground
Panel motor control output
Panel open switch output
Panel close switch output
ST mute signal output
Stereo detection input for tuner
Tuner detection input for tuner
Tuner PLL latch output
Tuner PLL data input
Sub clock output
Tuner PLL data output
Tuner clock output
Power on/off control output
GEQ latch output
GEQ data output
GEQ clock output
Not used
Pin Name
GND
MOTOR1
MOTOR2
PANEL OPEN
PANEL CLOSE
ST. MUTE
STEREO
TUNED
LAT
DATA IN
PCL OUT
DATA OUT
CLK
POWER ON/OFF
GEQ LAT
GEQ DATA
GEQ CLK
LAT1
LAT2
DATA
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