Sylvania SRT2232X service manual IF/Video Block Diagram, RF/IF Signal Video Signal Audio Signal

Page 24

IF/Video Block Diagram

RF/IF SIGNAL

VIDEO SIGNAL

AUDIO SIGNAL

TU1

 

SF1

 

IC33

(IF SIGNAL PROCESS)

 

CF31

WF1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IF 11

SAW

20

VIF

VIDEO

5

4.5MHz

3

EQ

1

FILTER

 

21

AMP

DET

TRAP

AMP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CF32

 

 

 

AGC

1

 

 

 

 

VCO

 

4.5MHz

8

SIF

10

SCL

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FILTER

AMP

 

 

 

 

 

 

 

 

SDA

5

 

 

 

 

 

 

 

 

 

 

EXT.CLK

8

 

 

 

 

 

 

LPF

 

VCO F/B

7

 

 

 

 

 

 

 

 

 

 

 

 

 

RF

 

 

 

 

 

 

 

 

17

 

 

 

 

 

 

 

 

WF16

AGC

 

 

IF AGC DET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AFT

 

 

 

 

 

 

 

 

 

AMP

 

 

 

 

 

22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

IC333

 

 

 

 

 

Q21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TV MICON/VIDEO

 

WF2

 

 

 

 

 

 

 

 

/AUDIO/CHROMA

 

 

 

 

JK721

 

 

 

 

/DEFLECTION

 

11

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VIDEO-IN

 

 

 

58

SCL

 

 

 

 

 

 

(FRONT)

 

 

 

56

SDA

 

 

 

 

 

 

JK701

 

 

 

 

 

 

 

 

 

 

 

 

32

 

 

 

 

 

VCXO

 

VIDEO-IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(REAR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26

 

 

 

 

 

 

 

 

 

 

 

24

 

 

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

MAIN CBA

SIF

TO

AUDIO BLOCK

 

Q33

INPUT0 FROM/TO

AGC

SYSTEM

CONTROL

AFT

BLOCK

 

16

X301

3.58MHz

 

LUMINANCE

 

 

PROCESS

 

 

CIRCUIT

OSD SW

 

RGB MATRIX

LPF

/COLOR CONT

CONTRAST

 

CHROMINANCE

BRIGHTNESS

 

PROCESS

 

 

CIRCUIT

 

29

 

 

Q951

CHROMA COMB

BASEBAND TINT

 

RGB DRIVE /CUT OFF /H.V. BLK

 

WH301A

 

52

5

BLUE

51

4

GREEN

50

3

RED

TO

CRT/H.V. BLOCK WH301B

 

JK711

 

30

OSD

 

 

 

 

S-VIDEO-IN

 

 

H-SYNC

 

 

Q956

 

C

Y

 

PROCESS

 

 

CIRCUIT

 

 

 

 

 

 

V-SYNC

61 S-SW

 

PROCESS

 

 

 

CIRCUIT

 

 

 

53

ACL

 

46

H-DRIVE

FROM/TO

45

FBP

CRT/H.V. BLOCK

38

RAMP-OUT

 

37

V-RAMP-F/B

 

6-3

6-4

L6650BLIF

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Page 23 Page 25
Contents SRT2232X Important Safety Notice Table of ContentsSpecifications Description Condition Unit Nominal LimitDBµV DBµV AFT Pull In Range 10mV input MHz ±2.2 ±0.7Important Safety Precautions Safety Precautions for TV CircuitNot be Above 0.5 mA L6115IMPL6115IMP Precautions during Servicing Safety Check after Servicing Clearance DistanceLeakage Current Test How to Remove / Install Flat Pack-IC Standard Notes for ServicingCircuit Board Indications RemovalWith Iron Wire With Soldering IronInstructions for Handling Semiconductors Cabinet Disassembly Instructions Disassembly FlowchartDisassembly Method Reference Notes in the TableRear Cabinet Main CBATV Cable Wiring Diagram Electrical Adjustment Instructions How to set up the service mode+B Adjustment Service modeInitial Setting AV Memory Setting dataGeneral Set toEnter the Service mode. See CNTBlack Stretch Control Adjustment SD Check ModePurity Check Position Adjustment Size Adjustment10. V. Position Adjustment Pedestal AdjustmentSoftware Reset 14. H. Size AdjustmentPIN Cushion Adjustment Cut-off Adjustment White Balance AdjustmentMode Input Sub-Brightness Adjustment Focus AdjustmentPurity Adjustment Convergence Adjustment FiguresBlock Diagrams System Control Block DiagramL6650BLS IF/Video Block Diagram RF/IF Signal Video Signal Audio SignalAudio Block Diagram L6650BLACRT/H.V. Block Diagram WF7 WF8Power Supply Block Diagram L6650BLPHOT CIRCUIT. be Careful Schematic Diagrams / Cbas and Test Points Standard NotesTolerance of Capacitors are noted with the following Wire Connectors How to read converged linesIs not consistent here Test Point InformationMain 1/4 Schematic Diagram Main 1/4 Ref No. PositionIC151 IC333 C-2 Q111 D-1 Q131 A-3 Q141 A-4 Q191 B-4 Q321 E-2Main 2/4 Schematic Diagram Main 2/4 Ref No. PositionIC431 IC771 IC801 CN801 L-4 CN802 L-3 L6650SCM2Main 3/4 Schematic Diagram Main 4/4 & CRT Schematic Diagram Main CBA Top View BL6650F01011-1Main CBA Bottom View CRT CBA Top View CRT CBA Bottom View Waveforms 20∝secL6650WF Wiring Diagram L6650WIPin Signal Name Function IC PIN FunctionsIC333 TV Micro Computer Input For Remote Control White Balance AdjustmentSwitching if IC VCO JudgementExploded Views CabinetDetails for DY551 and surrounding parts 11-2 L6650CEXPacking 11-3 L6250PEXMechanical Parts List V501 and DY551 CombinationCRT Warning Label Location 20030303 12-1 L6650CAElectrical Parts List 20030303 13-1 L6650ELCapacitors 20030303 13-2 L6650EL 20030303 13-3 L6650EL Connectors 20030303 13-4 L6650ELDiodes 20030303 13-5 L6650EL ICSCoils 20030303 13-6 L6650EL Transistors20030303 13-7 L6650EL Resistors20030303 13-8 L6650EL 20030303 13-9 L6650EL Switches 20030303 13-10 L6650EL20030303 13-11 L6650EL Miscellaneous20030303 13-12 L6650EL SRT2232X L6650UA

SRT2232X specifications

The Sylvania SRT2232X is a modern flat screen television that has garnered attention for its impressive features and cutting-edge technology. With a sleek design and robust capabilities, this TV is an appealing option for home entertainment.

One of the standout characteristics of the SRT2232X is its 32-inch LED display, which provides vibrant colors and sharp images. Thanks to the LED backlighting, viewers experience enhanced brightness and improved energy efficiency. The screen boasts a resolution of 1366 x 768 pixels, making it suitable for everyday viewing, whether it be movies, sports, or gaming.

The SRT2232X incorporates several technologies that improve the viewing experience. One such technology is the Digital Noise Reduction, which minimizes unwanted noise and enhances picture clarity. This feature is essential for content with high motion, ensuring that viewers can enjoy a smoother image without distractions.

The television includes integrated digital tuners that allow users to access free-to-air digital channels without the need for an additional set-top box. This convenience is coupled with HDMI ports that enable users to connect various devices, such as gaming consoles and Blu-ray players, providing versatility in multimedia options.

Audio quality is equally important, and the SRT2232X does not disappoint. It features built-in speakers that deliver clear and rich sound, suitable for standard viewing. Additionally, it often includes audio enhancement technologies that improve sound output, transforming the viewing experience into a more immersive one.

Furthermore, the Sylvania SRT2232X is designed with smart connectivity options. It typically includes USB ports that allow for direct playback of media files from flash drives. This means users can easily watch their favorite videos or view images without complicated setups.

The product is also lightweight and easily mountable, making it a flexible option for various living spaces. Whether placed on a stand or wall-mounted, the aesthetic appeal of the SRT2232X fits well in contemporary decor.

Overall, the Sylvania SRT2232X successfully combines solid performance with great features, making it a noteworthy choice for those seeking an affordable yet capable flat screen television for their home. With its combination of display technology, smart features, and user-friendly design, it provides a pleasant viewing experience for all.
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