Sony TA-VA777ES / VUCD-777A Service Manual ▷ View online
49
Pin No.
Pin Name
I/O
Function
1
RESET
I
Reset
2
XTAL
I
20MHz master clock
3
EXTAL
O
20MHz master clock
4
MD1
I
1: normal/0:boot
5
MD0
I
Ground
6
NMI
I
Ground
7
STBY
I
+5V
8
VCC
—
+5V
9
P52/SCK0
I
C-bit input clock
10
P51/RXD0
I
C-bit input data
11
P50/TXD0
O
Latch No.7
(“L”
t “H” : latch)
12
GND
—
Ground
13
P97/WAIT
I
Ready
14
P96/MCK
I
(NC)
15
P95/AS
O
Latch No.6
(“L”
t “H” : latch)
16
P94/WR
O
WR
17
P93/RD
O
RD
18
P92/IRQ0
O
Latch No.5
(“L”
t “H” : latch)
19
P91/IRQ1
O
Latch No.4
(“L”
t “H” : latch)
20
P90/IRQ2
O
CXD2712#1 CS
(“H” = select)
21
P60
O
CXD2712#2 CS
(“H” = select)
22
P61
O
CXD2712RD
(“H” = read)
23
P62
O
CXD2712WR
(“H” = write)
24
P63
O
Latch No.3
(“L”
t “H” : latch)
25
P64
I
Buzy control port
26
P65
O
Latch No.2
(“H” : transparent)
27
P66
O
Latch No.1
(“H” : transparent)
28
P67
O
Latch No.1 to No. 7 OE
(“L” = on)
29
AVCC
—
+5V
30
AN0
I
DC analog input
31
AN1
I
HP sw input
(“L” = HP on)
32
AN2
I
AC-3 RF error
(“H“ = error)
33
AN3
I
DIR unlock
(“H“ = error)
34
AN4
I
ADSP21062
FLAG0
35
AN5
I
ADSP21062
FLAG1
36
AN6
I
ADSP21062
FLAG2
37
AN7
I
ADSP21062
FLAG3
38
AGND
—
Ground
39
P40/TXD2
O
8bit bus data (positive)
40
P41/RXD2
O
8bit bus data (positive)
41
P42
O
8bit bus data (positive)
42
P43
O
8bit bus data (positive)
43
P44
O
8bit bus data (positive)
44
P45
O
8bit bus data (positive)
45
P46
O
8bit bus data (positive)
46
P47
O
8bit bus data (positive)
47
VCC
—
+5V
48
P27/A15
O
Bus address A15
49
P26/A14
O
Bus address A14
50
P25/A13
O
Bus address A13
IC357 HD64F2134FA20-777C (Control
µ
COM port assign) (DIGITAL BOARD)
50
Pin No.
Pin Name
I/O
Function
51
P24/A12
O
Bus address A12
52
P23/A11
O
Bus address A11
53
P22/A10
O
Bus address A10
54
P21/A9
O
Bus address A9
55
P20/A8
O
Bus address A8
56
GND
—
Ground
57
P17/A7
O
Bus address A7
58
P16/A6
O
Bus address A6
59
P15/A5
O
Bus address A5
60
P14/A4
O
Bus address A4
61
P13
O
Bus address A3
62
P12/A2
O
Bus address A2
63
P11/A1
O
Bus address A1
64
P10/A0
O
Bus address A0
65
P30/D0
O
Bus data D0
66
P31/D1
O
Bus data D1
67
P32/D2
O
Bus data D2
68
P33/D3
O
Bus data D3
69
P34/D4
O
Bus data D4
70
P35/D5
O
Bus data D5
71
P36/D6
O
Bus data D6
72
P37/D7
O
Bus data D7
73
GND
—
Ground
74
P80
O
HBR for ADSP21062
75
P81
I
HBG from ADSP21062
76
P82
O
(NC)
77
P83
O
(NC)
78
P84/TXD1
O
Communicate with external
79
P85/RXD1
I
Communicate with external
80
P86
I
FS (sampling frequency)
51
IC349 LC89055W DIGITAL AUDIO I/F RECEIVER (DIGITAL BOARD)
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
41
42
43
44
45
46
47
48
I/O
I
O
I
O
I
—
O
I
I
O
—
—
—
O
O
O
O
—
—
—
O
I
O
—
O
—
—
—
—
—
—
O
O
O
O
I
I
I
I
I
I
—
—
O
O
I
I
I
Pin Name
DISEL
DOUT
DIN0
DIN1
DIN2
D. GND
D. V
DD
R
V IN
LPF
A. V
DD
A. GND
CK OUT
BCK
LRCK
DATA O
XSTATE
D. GND
D. V
DD
XMCK
XOUT
XIN
EMPHA
AUDIO
CSFLAG
F0/P0/C0
F1/P1/C1
F2/P2/C2
F3/P3/C3
D. V
DD
D. GND
AUTO
BPSYNC
ERROR
DO
DI
CE
CLK
XSEL
MODE0
MODE1
D. GND
D. V
DD
DOSEL0
DOSEL1
CKSEL0
CKSEL1
XMODE
Description
Input data select. (connected to ground.)
EIAJ data and parity flag output terminal (Not used)
Amplifier integrate data input terminal
Amplifier integrate data input terminal (Connecting to ground)
Amplifier integrate data input terminal (Connecting to ground)
Digital ground
Digital power supply
Input terminal for VCO generator band adjustment
Input terminal for VCO self running frequency set
External LPF for PLL is connected to this terminal
Analog power supply
Analog ground
256fs or 128fs clock output terminal (Select CLKMD terminal)
Bit clock output terminal
L, R clock output terminal (L-ch: “H”, R-ch: “L”)
Audio data output terminal
Xtal status frag output.
Digital ground
Digital power supply
Not used.
Crystal oscillator output terminal (Not used.)
Crystal oscillator input terminal
Emphasis monitor output terminal (“H” = ON) (Not used.)
Not used.
C-bit change frag output.
Not used.
Not used.
Not used.
Not used.
Digital power supply
Digital ground
Non PCM data detect flag output.
Non PCM sync detect flag output.
Error mute output terminal
Microprocessor I/F. When CCB/SUB is “H”, data output terminal (high level open drain output) (Not used)
Microprocessor I/F. Data input terminal
Microprocessor I/F. Chip enable/latch input terminal
Microprocessor I/F. Clock input terminal
Xtal select. (Connected to +5V.)
Mode 0 input. (Connected to ground.)
Mode 1 input. (Connected to ground.)
Digital ground
Digital power supply
Output data select 0. (Connected to ground.)
Output data select 1. (Connected to ground.)
System clock select input 0. (Connected to ground.)
System clock select input 1. (Connected to ground.)
Reset input.
SECTION 4
EXPLODED VIEWS
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
•
The mechanical parts with no reference number
in the exploded views are not supplied.
in the exploded views are not supplied.
•
Hardware (# mark) list and accessories and
packing materials are given in the last of this
parts list.
packing materials are given in the last of this
parts list.
The components identified by mark
0
or
dotted line with mark
0
are critical for safety.
Replace only with part number specified.
52
Front panel section
Chassis section
not supplied
not supplied
not supplied
#7
#10
#7
4
8
5
1
2
3
6
7
2
1
5
8
8
8
4-1. CASE SECTION
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
1
X-4949-759-1 FOOT ASSY
2
4-970-124-01 CUSHION (F50180S)
3
X-4951-908-1 KNOB(VOL) ASSY
4
4-222-052-11 CASE
5
4-227-843-11 SCREW(TP), FLAT HEAD
6
4-972-439-11 SPACER (SCREW HEAD)
7
4-971-099-01 WASHER (P)
8
4-974-510-01 SCREW(+BV 3X8 CU)
Click on the first or last page to see other TA-VA777ES / VUCD-777A service manuals if exist.