21
AVR-2802/982
Symbol Function
CO: IC304
Q1 A Video input switching
Q2 B Video input switching
Q3 C Video input switching
Q4 D Video output switching
Q5 E Video output switching
Q6 F Video output switching
Q7 H Video output switching
Q8 G Video output switching
Port
Symbol Function
CO: IC305
Port
Q1
DIRECT/TONE DEFEAT
DIRECT & TONE DEFEAT relay control (H:DIRECT,TONE DEFEAT)
Q2 S1 Video signal switching control output
Q3 S2 Video signal switching control output
Q4 EXT. IN
Sub woofer channel gain control terminal (L:EXT. IN)
Q5 D Video output switching
Q6 G Video output switching
Q7 NC
Q8 FRONT A+B Current limiter control terminal (H:Front SP A+B)
BU4094BCF (CO: IC304,305)
BU2090F (CO: IC103)
1Vss
2DATA
3CLOCK
4LCK
5Q0
6Q1
7Q2
8Q3
9Q4
18
17
16
15
14
13
12
11
10
VDD
OE
Q11
Q10
Q9
Q8
Q7
Q6
Q5
CONTROL CIRCUIT
12-bit SHIFT RESISTER
12-bit STRAGE RESISTER
OUTPUT BUFFER (OPEN DRAIN)
STROBE
1
2
3
4
5
6
7
8
9
10
11
16
15
14
13
12
DATA
CLOCK
Q1
Q2
Q3
Q4
V
SS
VDD
OE
Q5
Q6
Q7
Q8
Q'
S
Q
S
LC75721E (CO: IC101)
64
49
48 33
32
17
161
AM 1
AM 2
AM 3
AM 4
AM 5
AM 6
AM 7
AM 8
AM 9
AM 10
AM 11
AM 12
AM 13
AM 14
AM 15
AM 16
AM 17
AM 18
AM 19
AM 20
AM 21
AM 22
AM 23
AM 24
AM 25
AM 26
AM 27
AM 28
AM 29
AM 30
AM 31
AM 32
G7
G8
G9
G10
G11
AA8/G12
AA7/G13
AA6/G14
AA5/G15
AA4/G16
AA3
AA2
AA1
AM35
AM34
AM33
DI
CL
CE
RES
V
DD
OSCI
OSCO
Vss
TEST
V
FL
G1
G2
G3
G4
G5
G6
Symbol
V
DD
Vss
Power terminal +5V
Power terminal GND
V
FL
Power terminal FL drive
DI
CL
CE
Serial data transfer terminal
DI: Data
CL: Clock
CE: Chip enable
OSCI
OSCO
External CR connecting terminal
RES
System reset terminal
AM1~AM35
AA1~AA3
Anode output terminal
AA4/G16
AA5/G15
AA6/G14
AA7/G13
AA8/G12
Anode/Grid output terminal
G1~G11 Grid output terminal
TEST LSI test terminal
Function
LC75721E Terminal Function
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
3031
32
33
34
35
36
37
3839
40
41
42
V
DD
V
SS
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
GND
CK
DATA
STB
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
18 bit Latch Circuit (Rch)
(Lch) Same as Rch
Level Shift + Shift Register Circuit
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
3031
32
33
34
35
36
37
3839
40
41
42
V
DD
V
SS
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
GND
CK
DATA
STB
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
18 bit Latch Circuit (Rch)
(Lch) Same as Rch
Level Shift + Shift Register Circuit
TC9274N-011 (AU: IC107) TC9274N-017 (EX: IC312)
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