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TA-VA777ES
3-4. BLOCK DIAGRAM CONTROL SECTION
POWER AMP(L)
IC4101
+B
13
VCC
+V2
12
BIAS
14
VCC
Q4102
RV3101
VOLUME
-B
15
VEE
L
IC4102
NF2
9
3
1
8
IN2
-V2
11
C
IC4202
3
1
C
POWER AMP(C/W)
IC4201
(Page 9)
W
IC4202
+B
13
VCC
+V1
2
BIAS
5
7
14
VCC
Q4102
-B
15
VEE
NF1
5
LS
IC4302
6
IN1
3
1
-V1
3
+V2
12
8
IN2
-V2
11
M
NF2
9
POWER AMP(LS)
IC4301
+B
13
+V1
VCC
2
BIAS
Q4102
14
VCC
-B
15
VEE
NF1
5
6
IN1
-V1
3
2
4
MOTOR
DRINE
IC333
5
8
ANA DATA
D
ANA CLK
ANA OE
(Page 9)
39
22
SYSTEM CONTROL
IC357(3/3)
16
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CURRENT
BOOSTER
DET
Q4103
Q4105
RY4701
RELAY
DRIVE
Q4701
BOOSTER
PROTECT
Q4104
Q4106
RY4451
CURRENT
RELAY
BOOSTER
DET
DRIVE
Q4203
Q4205
Q4451
RY4401
RELAY
DRIVE
Q4401
BOOSTER
PROTECT
RY4501
Q4204
Q4206
RELAY
DRIVE
Q4501
RY4551
CURRENT
BOOSTER
DET
Q4303
RELAY
Q4305
DRIVE
Q4551
BOOSTER
PROTECT
Q4304
Q4306
RY4601
PROTECTOR
RELAY
Q4001-4003
D4001,4002
DRIVE
Q4601
IC317
ANA DATA
14
5
SHIFT
ANA CLK
11
REGISTER
1
15
13
2
12
4
3
6
7
34
9
4 1 79 78
14
XTAL
2
X305
20MHz
EXTAL
3
PORY48
26
R-CH
J103
HEADPHONE
IC102
L
A
TM4401
EEPROM
FL101
R-CH
R
FRONT
SPEAKER
1G-19G
P1-P35
L
B
IC108
R-CH
R
F1
F2
41
35
60
FL
37
.
DRIVER
C
20
27
TM4501
S(L)
6
32
SURROUND
SPEAKER
IC109
S(R)
R-CH
17
3
FL
26
29
.
DRIVER
16
5
J4702
8
4
WOOFER
30
J4701
FL102
L
G1-G16
S1-S35
R-CH
R
IC107
F1
F2
C
5
63
FL
62
33
W
DRIVER
Q101-108
40
61
55
60
LS
R-CH
RS
SELECTOR
IC344
A0
2
4
Y0
B0
3
A1
5
7
Y1
B1
6
A2
11
9
Y2
B2
10
A3
14
12
Y3
B3
13
S
1
D316
10
10
MODE CONTROL
IC103
IC101
OPEN MT
45
3
7
MOTOR
M
M101
DRIVE
CLOS MT
46
6
2
S112
OPEN SW
26
OPEN
S114
22
HP SW IN
CLOS SW
25
CLOS
S116
POWR SW
27
POWER
5
71
SDA
6
70
SCL
D101
LED DRIVE
BLU LED
41
Q112
RV101
JOG SWA
36
JOG
JOG SWB
35
KEY ENT
34
S101-109
TACT J
32
RV102
FUNC S A
77
FUNCTION
FUNC S B
76
9
FL1 CLK
KEY DIG
75
S111
13
FL1 CLR
KEY ASP
74
S113
10
FL1 LAT
KEY DOR
72
S115
11
FL1 DAT
S118-130
TACT 1
30
KEY
MATRIX
TACT 2
31
S117
D110
SP SW
SP SELA
23
A+B
+5VB
SP SELB
24
21
FL2 DAT
A
BUFFER
17
FL2 CLK
B
16
FL2 LAT
15
FL2 RES
SIRCS
28
RXD1
79
2
XTAL
X101
I/R CONTROL
20MHz
IC352
3
EXTAL
STAT A
58
1
STAT 0
SIRCS IN
STAT A
57
44
STAT 1
STAT A
55
43
STAT 2
STAT A
54
42
STAT 3
63
BUZY CT
CARRIER
IC111
1
SIRCS
BUFFER
4
44
STAT 4
Q311
IRQ0
18
2
IRQ1
19
IRQ IN
80
66
RESET OUT
19
RESET
1
RESET C
SIRSTS
52
8
SIRSTS
39
TXD2
CA1 LAT
59
5
CTRL LATCH
40
RXD2
MD1
4
22
OUT LO1
78
TXD1
BOOT CT
65
25
END FLG
RESET
UART IN
I/O BUFFER
CA1 OUT
60
11
A1 OUT
Q307,308
OUT HI2
64
COM SEL
D304
CA1 IN
61
12
A1 IN
62
STOP IN
20
RESET N
XOUT
POW CNT
67
• RCH is omitted
• Signal Path
: FM
IC110
+5VB
SIRCS
1
3
RX
10
IC353
+5V
IC106
1
2
4
6
2
LED SW
2
33
Q109
IC106
3
5
LED SW
SIRCS
Q110
TX
IC106
1
7
LED SW
Q111
IC350
+5VB
14
1
RESET 2
26
23
XIN
15
X304
7.28MHz
16
J1701
CTRL-A1
J1601
IC1601
RS232
12
13
DTR
RS232
DRIVER/
RECEIVER
11
14
TXD
POW CNT
STOP OUT
E
D POWER
V POWER
(Page 11)
PORY48
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