Sylvania SRT2232X service manual Main CBA Top View, BL6650F01011-1

Page 34

Main CBA Top View

CAUTION !

Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F601) is blown, check to see that all components in the power

supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.

NOTE :

The voltage for parts in hot circuit is measured using hot GND as a common terminal.

TP601 +B

FOCUS-VR (UPPER SIDE)

SCREEN-VR (LOWER SIDE)

TP300

GND

TP302 15kHz

VR661

+B ADJ

VR561

PCC

VR562

WIDTH

TP301

AGC

BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED. ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT SLOWLY, WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.

CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE. ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE

4A/125V

MÊME TYPE DE 4A, 125V.

 

 

 

 

 

 

 

 

 

 

 

MAIN CBA

 

 

 

 

 

 

Ref No.

 

Position

Ref No.

Position

 

 

 

ICS

TRANSISTORS

 

 

IC33

 

B-2

Q751

C-1

 

 

IC151

 

E-5

Q761

C-1

 

 

IC333

 

F-5

Q791

C-1

 

 

IC431

 

A-1

Q792

C-1

 

 

IC551

 

C-2

Q793

D-1

 

 

IC601

 

C-4

Q794

D-1

 

 

IC771

 

D-1

Q825

E-2

 

 

IC801

 

E-2

Q831

E-3

 

 

TRANSISTORS

Q832

F-3

 

 

Q21

 

C-1

Q841

F-2

 

 

Q33

 

C-1

Q851

E-3

 

 

Q111

 

F-3

Q951

D-1

 

 

Q131

 

F-4

Q956

D-1

 

 

Q141

 

E-5

Q961

C-1

 

 

Q191

 

F-5

CONNECTORS

 

 

Q321

 

E-3

CN301

A-1

 

 

Q531

 

C-2

CN571

B-3

 

 

Q533

 

C-2

CN691

D-5

 

 

Q547

 

B-2

CN801

E-2

 

 

Q551

 

B-2

CN802

E-5

 

 

Q552

 

B-2

WH301A

D-4

 

 

Q561

 

B-2

WH501A

A-4

 

 

Q571

 

B-4

TEST POINTS

 

 

Q572

 

C-2

TP300

A-4

 

 

Q601

 

B-1

TP301

A-2

 

 

Q602

 

B-4

TP302

A-4

 

 

Q652

 

D-4

TP591

A-3

 

 

Q672

 

D-3

TP592

A-3

 

 

Q673

 

D-3

TP601

B-5

 

 

Q674

 

D-3

VARIABLE RESISTOR

 

 

Q681

 

D-3

VR561

B-2

 

 

Q682

 

D-4

VR562

B-2

 

 

Q683

 

D-4

VR661

B-2

 

 

Q696

 

D-4

 

 

7-11

7-12

BL6650F01011-1

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Contents SRT2232X Important Safety Notice Table of ContentsDBµV SpecificationsDescription Condition Unit Nominal Limit DBµV AFT Pull In Range 10mV input MHz ±2.2 ±0.7Not be Above 0.5 mA Important Safety PrecautionsSafety Precautions for TV Circuit L6115IMPL6115IMP Precautions during Servicing Clearance Distance Safety Check after ServicingLeakage Current Test Circuit Board Indications How to Remove / Install Flat Pack-ICStandard Notes for Servicing RemovalWith Iron Wire With Soldering IronInstructions for Handling Semiconductors Disassembly Method Cabinet Disassembly InstructionsDisassembly Flowchart Reference Notes in the TableRear Cabinet Main CBATV Cable Wiring Diagram +B Adjustment Electrical Adjustment InstructionsHow to set up the service mode Service modeGeneral Initial SettingAV Memory Setting data Set toEnter the Service mode. See CNTSD Check Mode Black Stretch Control AdjustmentPurity Check 10. V. Position Adjustment Position AdjustmentSize Adjustment Pedestal Adjustment14. H. Size Adjustment Software ResetPIN Cushion Adjustment White Balance Adjustment Cut-off AdjustmentMode Input Focus Adjustment Sub-Brightness AdjustmentPurity Adjustment Convergence Adjustment FiguresSystem Control Block Diagram Block DiagramsL6650BLS IF/Video Block Diagram RF/IF Signal Video Signal Audio SignalAudio Block Diagram L6650BLACRT/H.V. Block Diagram WF7 WF8L6650BLP Power Supply Block DiagramHOT CIRCUIT. be Careful Standard Notes Schematic Diagrams / Cbas and Test PointsTolerance of Capacitors are noted with the following Is not consistent here Wire ConnectorsHow to read converged lines Test Point InformationIC151 IC333 C-2 Main 1/4 Schematic DiagramMain 1/4 Ref No. Position Q111 D-1 Q131 A-3 Q141 A-4 Q191 B-4 Q321 E-2IC431 IC771 IC801 Main 2/4 Schematic DiagramMain 2/4 Ref No. Position 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 20∝sec WaveformsL6650WF Wiring Diagram L6650WIIC PIN Functions Pin Signal Name FunctionIC333 TV Micro Computer Switching if IC VCO Input For Remote ControlWhite Balance Adjustment JudgementDetails for DY551 and surrounding parts Exploded ViewsCabinet 11-2 L6650CEXPacking 11-3 L6250PEXCRT Warning Label Location Mechanical Parts ListV501 and DY551 Combination 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 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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