If/video block diagram – Sylvania SRT2232X User Manual

Page 24

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background image

L6650BLIF

6-3

6-4

58

16

56
32

30

SCL

CF31

CF32

VCO F/B

Q33

AGC

SDA

S-SW

(REAR)

FROM/TO
CRT/H.V. BLOCK

WH301A

TO
CRT/H.V. BLOCK
WH301B

BLUE

5

GREEN

4

RED

3

IF/Video Block Diagram

IC33 (IF SIGNAL PROCESS)

CHROMINANCE

PROCESS

CIRCUIT

LUMINANCE

PROCESS

CIRCUIT

CHROMA COMB

BASEBAND TINT

H-SYNC

PROCESS

CIRCUIT

V-SYNC

PROCESS

CIRCUIT

VCXO

OSD

RGB MATRIX

/COLOR CONT

OSD SW

CONTRAST

BRIGHTNESS

RGB DRIVE

/CUT OFF

/H.V. BLK

LPF

14

20

29

11

61

53
46
45
38
37

ACL
H-DRIVE
FBP
RAMP-OUT
V-RAMP-F/B

JK721
VIDEO-IN

24

SAW

FILTER

VIF

AMP

VIDEO

DET

VCO

4.5MHz

FILTER

LPF

IF AGC DET

EQ

AMP

RF

AGC

AMP

AFT

4.5MHz

TRAP

SIF

AMP

20

14

16

22

7

21

5

3

8

1

10

TU1

SF1

IF

AGC

SDA

SCL

EXT.CLK

1

11

5

4

8

17

26

SIF

52
51
50

MAIN CBA

VIDEO SIGNAL

RF/IF SIGNAL

AUDIO SIGNAL

JK701
VIDEO-IN

WF16

WF1

WF2

TO
AUDIO BLOCK

IC333

TV MICON/VIDEO
/AUDIO/CHROMA
/DEFLECTION

JK711
S-VIDEO-IN

C

Y

(FRONT)

INPUT0

X301
3.58MHz

AFT

FROM/TO
SYSTEM
CONTROL
BLOCK

Q21

Q951

Q956

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