JVC UX-A7DVD - Page 52

UX-A7DVD
1-52 (No.22013)
4.12 LA73054-X (IC601) : Video driver
• Pin layout & Block diagram
• Pin function
Pin No. Symbol I/O Function
1 VCC1 - VCC except for 75ohm driver
2 COMPOSITE.IN I Input composite
3 SQUEEZE.SW I Selecting squeeze mode
4 LETTER-BOX.SW I Selecting letter-box mode
5 MUTE-SW-1 I Composite/S signal mute selection
6 C-IN I Input Chroma signal
7 GND11 - Composite/S GND except for 75ohm driver
8 Y-IN-1 I Input Y signal
9 YC-MIX.SW I Selecting of doing Y/C-MIX or not
10 SIGNAL-IN.SW I Selection of a kind of signal
11 Y-IN-2 I Input component Y or baseband signal
12 MUTE-SW-2 I Component signal mute selection
13 LPF.SW I Selection of a kind of component LPF
14 CB.IN I Input component or baseband signal
15 AMP.SW-2 I Selecting amplifier gain for component signal
16 CR.IN I Input component or baseband signal
17 GND12 - Component GND except for 75ohm driver
18 REG O Capacitor terminal for regulator
19 DRIVE.SW-2 I 2drive/1drive select for component signal
20 GND26 - CR-GND for 75ohm driver
21 CR.OUT O 75ohm driver output of pin16 input
22 GND25 - CB-OUT for 75ohm driver
23 CB.OUT O 75ohm driver output of pin14 input
24 VCC22 - Component Vcc for 75ohm driver
25 Y-OUT-2 O 75ohm driver output of pin11 input
26 GND24 - Component Y out for 75ohm driver
27 GND23 - Y out for 75ohm driver
28 Y-OUT-1 O 75ohm driver output of pin8 input
29 GND22 - Chroma out for 75ohm driver
30 C-DC.OUT O DC voltage output for S1,S2
31 C-OUT O 75ohm driver output of pin6 input
32 GND21 - Composite out for 75ohm driver
33 COMPOSITE-OUT O 75ohm driver output of pin2 input
34 VCC21 - Composite/S Vcc for 75ohm driver
35 DRIVE.SW-1 I 2drive/1drive select for composite/S signal
36 AMP.SW-1 I 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
LPF1LPF2
75
DRIVER
SYNC
SEP
PEDESTAL
CLAMP
PEDESTAL
CLAMP
2Step
Amp5
2Step
Amp6
LPF1LPF2 LPF1LPF2
75
DRIVER
75
DRIVER
REG
VCC