Sylvania SRT2232X Electrical Adjustment Instructions, Test Equipment Required, +B Adjustment

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ELECTRICAL ADJUSTMENT INSTRUCTIONS

General Note:

"CBA" is abbreviation for "Circuit Board Assem- bly."

NOTE:

Electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to perform these adjustments only after all repairs and replacements have been com- pleted.

Also, do not attempt these adjustments unless the proper equipment is available.

Test Equipment Required

1.NTSC Pattern Generator (Color Bar W/White Window, Red Color, Dot Pattern, Gray Scale, Monoscope, Multi-Burst)

2.DC Voltmeter

3.Oscilloscope: Dual-trace with 10:1 probe, V-Range:0.001~50V/Div,

F-Range: DC~AC-60MHz

4.Plastic Tip Driver

5.Remote control unit: Part No. N0138UD or N0139UD

6.DC power supply 13.2V/5A

How to make Service remote control unit:

1.Prepare normal remote control unit. (Part No. N0138UD or N0139UD) Remove 3 Screws from the back lid. (Fig. 1-1)

2.Added J1 (Jumper Wire) to the remote control CBA. (Fig. 1-2)

SCREWS

How to set up the service mode:

Service mode:

1.Use the service remote control unit.

2.Turn the power on. (Use main power on the TV unit.)

3.Press "SLEEP" button on the service remote con- trol unit. Version of micro computer will display on the CRT. (Ex: 054-0.05)

4.Check the display on the lower left is "3815" and if it is not "3815," set it at "3815" according to "2. Ini- tial Setting."

1.+B Adjustment

Purpose: To obtain correct operation.

Symptom of Misadjustment: The picture is dark and the unit does not operate correctly.

Test Point

Adj. Point

Mode

 

Input

 

 

 

 

 

 

 

 

 

 

TP601(+B)

VR661

---

 

---

TP300(GND)

 

 

 

 

 

 

 

 

 

 

Tape

M. EQ.

 

Spec.

 

 

 

---

DC Voltmeter

+132±0.5V DC.

 

 

 

 

 

Note:TP601, TP300(GND), VR661 --- Main CBA

1.Connect DC Volt Meter to TP601 and TP300(GND).

2.Adjust VR661 so that the voltage of TP601 becomes +132±0.5V DC.

REMOTE CONTROL UNIT

Fig. 1-1

 

 

 

 

 

J 1

 

 

 

Fig. 1-2

 

REMOTE CONTROL CBA

 

 

 

 

 

Notes:

1.The service remote control unit that be made in above method is usable in the electrical adjustment of the following models.

SRT2313/2319, SRT2213B/2219B, SRT2227X, SRT2223X, SRT2223B, SRT2232X, SRT2220P SRT4127P

2.The attached remote control unit can not be used as service remote control unit.

5-1

L6650EA

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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 Leakage Current Test Safety Check after ServicingClearance Distance 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 CNTPurity Check Black Stretch Control AdjustmentSD Check Mode 10. V. Position Adjustment Position AdjustmentSize Adjustment Pedestal AdjustmentPIN Cushion Adjustment Software Reset14. H. Size Adjustment Mode Input Cut-off AdjustmentWhite Balance Adjustment Purity Adjustment Sub-Brightness AdjustmentFocus Adjustment Convergence Adjustment FiguresL6650BLS Block DiagramsSystem Control Block Diagram IF/Video Block Diagram RF/IF Signal Video Signal Audio SignalAudio Block Diagram L6650BLACRT/H.V. Block Diagram WF7 WF8HOT CIRCUIT. be Careful Power Supply Block DiagramL6650BLP Tolerance of Capacitors are noted with the following Schematic Diagrams / Cbas and Test PointsStandard Notes 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 L6650WF Waveforms20∝sec Wiring Diagram L6650WIIC333 TV Micro Computer Pin Signal Name FunctionIC PIN Functions 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 L6650CACapacitors Electrical Parts List20030303 13-1 L6650EL 20030303 13-2 L6650EL 20030303 13-3 L6650EL Diodes Connectors20030303 13-4 L6650EL Coils 20030303 13-5 L6650ELICS 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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