Sylvania SRT2232X service manual Waveforms, 20∝sec, L6650WF

Page 37

WF1 ~ WF16 = Waveforms to be observed at Waveform check points. (Shown in Schematic Diagram.)

WAVEFORMS

Input:NTSC Color Bar Signal (with 1kHz Audio Signal)

INITIAL POSITION: Unplug unit from AC outlet for at least 5 minutes. reconnect to AC outlet and then turn power on.

(Brightness---Center Color---Center Tint --- Center Contrast---Approx 70%)

GND

WF1

1DIV: 0.5V

20∝sec

 

IC 33

Pin 3

 

WF2

1DIV:

0.5V

20∝sec

 

IC 333 Pin 14

 

 

GND

WF3

1DIV: 2V

20∝sec

 

Q 1511 Base

 

 

GND

 

 

GND

WF5

1DIV: 2V

20∝sec

 

Q 1531 Base

WF6 1DIV: 0.2V 20msec

IC 801 Pin 5

GND

WF7 1DIV: 10V 20∝sec

Q 572 Collector

 

 

GND

 

 

WF9

1DIV: 200V 20∝sec

WF13

1DIV: 20V

∝

 

CN 571 Pin 1

20 sec

 

 

Q 1531 Collector

 

 

GND

 

 

WF10

1DIV: 5V 20∝sec

WF14

1DIV: 20V

20∝sec

 

WH501A Pin 3

 

Q 1521 Collector

WF11

1DIV: 2V 5msec

WF15

1DIV: 20V

20∝sec

 

IC 551 Pin 7

 

Q 1511 Collector

WF4 1DIV: 2V 20∝sec

Q 1521 Base

 

 

10 V

5 ms

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WF8 1DIV: 5V 20∝sec

WF12

1DIV: 10V 5msec

 

WF16 1DIV: 0.2V 20∝sec

Q 571 Base

 

CN 571 Pin 4

 

TU 1 Pin 8

8-1

8-2

L6650WF

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Contents SRT2232X Table of Contents Important Safety NoticeDescription Condition Unit Nominal Limit SpecificationsDBµV DBµV AFT Pull In Range 10mV input MHz ±2.2 ±0.7Safety Precautions for TV Circuit Important Safety PrecautionsNot be Above 0.5 mA L6115IMPL6115IMP Precautions during Servicing Clearance Distance Safety Check after ServicingLeakage Current Test Standard Notes for Servicing How to Remove / Install Flat Pack-ICCircuit Board Indications RemovalWith Soldering Iron With Iron WireInstructions for Handling Semiconductors Disassembly Flowchart Cabinet Disassembly InstructionsDisassembly Method Reference Notes in the TableMain CBA Rear CabinetTV Cable Wiring Diagram How to set up the service mode Electrical Adjustment Instructions+B Adjustment Service modeAV Memory Setting data Initial SettingGeneral Set toCNT Enter the Service mode. SeeSD Check Mode Black Stretch Control AdjustmentPurity Check Size Adjustment Position Adjustment10. V. Position Adjustment Pedestal Adjustment14. H. Size Adjustment Software ResetPIN Cushion Adjustment White Balance Adjustment Cut-off AdjustmentMode Input Focus Adjustment Sub-Brightness AdjustmentPurity Adjustment Figures Convergence AdjustmentSystem Control Block Diagram Block DiagramsL6650BLS RF/IF Signal Video Signal Audio Signal IF/Video Block DiagramL6650BLA Audio Block DiagramWF7 WF8 CRT/H.V. Block DiagramL6650BLP Power Supply Block DiagramHOT CIRCUIT. be Careful Standard Notes Schematic Diagrams / Cbas and Test PointsTolerance of Capacitors are noted with the following How to read converged lines Wire ConnectorsIs not consistent here Test Point InformationMain 1/4 Ref No. Position Main 1/4 Schematic DiagramIC151 IC333 C-2 Q111 D-1 Q131 A-3 Q141 A-4 Q191 B-4 Q321 E-2Main 2/4 Ref No. Position Main 2/4 Schematic DiagramIC431 IC771 IC801 CN801 L-4 CN802 L-3 L6650SCM2Main 3/4 Schematic Diagram Main 4/4 & CRT Schematic Diagram BL6650F01011-1 Main CBA Top ViewMain CBA Bottom View CRT CBA Top View CRT CBA Bottom View 20∝sec WaveformsL6650WF L6650WI Wiring DiagramIC PIN Functions Pin Signal Name FunctionIC333 TV Micro Computer White Balance Adjustment Input For Remote ControlSwitching if IC VCO JudgementCabinet Exploded ViewsDetails for DY551 and surrounding parts 11-2 L6650CEX11-3 L6250PEX PackingV501 and DY551 Combination Mechanical Parts ListCRT Warning Label Location 20030303 12-1 L6650CA20030303 13-1 L6650EL Electrical Parts ListCapacitors 20030303 13-2 L6650EL 20030303 13-3 L6650EL 20030303 13-4 L6650EL ConnectorsDiodes ICS 20030303 13-5 L6650ELCoils Transistors 20030303 13-6 L6650ELResistors 20030303 13-7 L6650EL20030303 13-8 L6650EL 20030303 13-9 L6650EL 20030303 13-10 L6650EL SwitchesMiscellaneous 20030303 13-11 L6650EL20030303 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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