TH-V70
1-49
LA73054 (IC601) : Video driver
2. Pin function
1. Terminal layout & block diagram
1,24,34
2
3
4
5
6
7,17,20,22
26,27,29,32
8
9
10
11
12
13
14
15
16
18
19
21
23
25
28
30
31
33
35
36
Pin No.
Symbol
Function
VCC
COMPOSITE IN
SQUEEZE SW
LETTER-BOX SW
MUTE1 SW
CHROMA IN
GND
Y-1 IN
YC MIX SW
RGB SW
Y-2 IN
MUTE2 SW
LPF SW
Cb IN
AMP-2 SW
Cr IN
REG
DRIVE-2 SW
Cr OUT
Cb OUT
Y-2 OUT
Y-1 OUT
C-DC OUT
CHROMA OUT
COMPOSITE OUT
DRIVE SW
AMP-1 SW
Power supply
Composite video signal input (Not connect)
Selecting squeeze mode
Selecting letter box mode
Composite/S signal mute selection
Chrominance signal input
Ground
Brightness signal input
Y/C-MIX control
Selection of a kind of signal (11pin)
Brightness signal input or baseband signal
Component signal mute selection
Selection of a kind of component LPF
Component signal (Cb) input or baseband signal
Selecting amplifier gain for component signal
Component signal (Cr) input or baseband signal
Capacitor terminal for regulator
2drive/1drive select for component signal
Component signal (Cr) output
Component signal (Cb) output
Brightness signal output
Brightness signal output
DC voltage output (Not connect)
Chrominance signal output
Composite video signal output
2drive/1drive select for composite/S signal
Selecting amplifier gain for composite/S signal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
CLAMP
C_OFFSET
DC_CTL
2Step
Amp1
LPF
75
DRIVER
2Step
Amp2
LPF1
75
DRIVER
CLAMP
2Step
Amp3
LPF1
75
DRIVER
Y/C
MIX
CLAMP
PEDESTAL
CLAMP
2Step
Amp4
LPF1
LPF2
75
DRIVER
SYNC
SEP
PEDESTAL
CLAMP
PEDESTAL
CLAMP
2Step
Amp5
2Step
Amp6
LPF1
LPF2
LPF1
LPF2
75
DRIVER
75
DRIVER
REG
VCC
I/O
-
I
I
I
I
I
-
I
I
I
I
I
I
I
I
I
O
I
O
O
O
O
O
O
O
I
I
Summary of Contents for TH-V70
Page 55: ...TH V70 1 55 M E M O ...