Tu/If Block Diagram; Vps Block Diagram - LG RC-185 Service Manual

2. TU/IF BLOCK DIAGRAM

TUNER BLOCK
5.3VA
MOD_AUDIO
MODULATOR_4í Lí
5.0V
VCRí Hí
MOD_VIDEO
RF AGC
TU_SECAMí Hí
TU_SECAM_VLí Hí
IIC_CLK
IIC_DATA
AFT
TU_MONO_A
SIF
33V
TU_VIDEO
TU701
PAL (NTSC) TUNER
1
BB+_5V
2 AUDIO_IN 1
3 2
SDA (CH_SW)
4 3
MB_5V
5 SCL (CTL) 4
6 5
VIDEO IN
7
VTU_33V
8
AGC
9 SW1 (AGC) 6
10 7
SW1 (Open)
11 8
AS
12 9
SCL
13 10
SDA
14 11
AFT OUT
15 12
AUDIO OUT
16 13
SIF OUT
17 14
VTU_33V
18 15
IF OUT
19 16
VIDEO OUT
PAL
NTSC
3-22

3. VPS BLOCK DIAGRAM

VPS BLOCK
1
VSS A
2 VSS D
N.C.
3
4 SCL
SDA
5
6 CSO
7 VCS
8 N.C.
9 DAVN
EHB
10
SDA5650X
3-23
20
VDD A
VDD D 19
N.C.
18
CVBS 17
IREF
16
VCO 1 15
PD2/VCO2 14
N.C. 13
PD 1 12
TI
11
IC7V1