Panasonic CT-36SX31UE Purity and Convergence Procedure, When the CRT or the Yoke is Replaced

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Purity and Convergence Procedure

Adjustment is necessary only if the CRT or the deflection yoke is replaced or if the setting was disturbed. The complete procedure consists of:

1.Vertical Raster Shift Adjustment. (Only for Models with Purity/Convergence Assembly with 4 Pairs of Rings).

2.Initial static convergence.

3.Setting the purity.

4.Final static convergence.

When the CRT or the Yoke is Replaced

Place the yoke on the CRT neck (do not tighten the clamp).

Place the vertical raster shift tabs at 3 o’clock (90o from the purity and convergence tabs)

Vertical Raster Shift Adjustment (Only for

Models with Purity/Convergence Assembly with 4 Pairs of Rings).

Apply a green pattern with a horizontal line, adjust the Deflection Yoke so that has no tilt, then secure it. Adjust center line of the pattern with the mechanical center of the CRT, this center is determined by two marks at the side edges of the screen. To adjust the line, once the vertical raster shift tabs are place at 3 o’clock to reduce its magnetic field effect (see Fig. 9 and Fig. 10) open the tabs the same angle from the center, until the center line of the pattern becomes a straight line, centered with the marks of the CRT. (see Fig. 11)

R&B Convergence Rings

Purity Rings Centered

R&B&G Convergence Rings

Over G3/G4 Gap

 

G3 G4

Vertical Raster Shift Ring

Center line

from pattern

Mechanical

Center Marks

Open the same angle from center

Vertical Raster Shift tabs

Figure 9. Positioning of Purity/Convergence

Assembly (4 Pairs of Rings)

R&B&G Convergence Rings

90o

R&B Convergence Rings

 

Vertical Raster

 

Shift Rings

 

Purity Rings

 

Figure 10. Positioning of Purity/Convergence

Assembly (4 Pairs of Rings)

Turn the Receiver ON. Operate the Receiver for 60 minutes using the first Purity Check field (white screen) to stabilize the CRT.

Fully degauss the Receiver by using an external degaussing coil.

Slide the deflection yoke back and forth on the neck of the CRT until it produces a near white, uniform raster.

Figure 11. Vertical Raster Shift Adjustment (4 pairs of rings assembly)

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Contents NA8ML Main ManualImportant Safety Notice Schematics, Voltages and waveforms Chip Component Installation Service NotesHow to Replace Flat-IC Leadless Chip Component surface mountProcedure Horizontal Oscillator Disable CircuitPreparation Receiver Features Location of Controls Receiver Remote Control SensorQuick Reference Control Operation Controls InsideLocation of Controls Remote Disassembly for Service Important Notice Screws at top edge Screw by Antenna jacks Screw at lower Back Cover RemovalRight corner Left corner ScrewSource Voltage Chart Chassis Service Adjustment Procedures140.0V B+ Voltage Confirmation High Voltage CheckWhen the CRT or the Yoke is Replaced Purity and Convergence ProcedureVertical Raster Shift Adjustment Only for Final Convergence Procedure see Fig Purity AdjustmentDynamic Corvergence Adjustment Service Adjustments Electronic Controls procedureDAF Adjustment XV Adjustmentprecise adjustmentYH Adjustment VR2 for Vertical dynamic convergence Permalloy Convergence Corrector Strip Part No FMK014ZZConvergence Magnets and Wedges Location Quick Entry to Serviceman Mode Serviceman Mode Electronic ControlsTo toggle between Aging and Serviceman modes Exiting the Serviceman ModePress Volume Up/Down on For AdjustmentsRemote Control to adjust Press Channel Up/Down onMTS Adjustment Default Level Geometry Adjustments Default LevelPIP Adjustment Default Level Options Adjustment Default Level Option Adjustment Default Level To Check Purity Helpful Hints Entering Serviceman Mode Back-Open MethodPress Recall again to select desired field Press Action + Volume Up Simultaneously on Receiver Instructional Flow Chart for Serviceman ModeCUT-OFF Adjustments PIP Adjustments Sub-Contrast Adjustment Service Adjustments Electronic ControlsTint/Color Adjustment PIP Sub-Contrast Adjustment P03Complete Adjustment Color Temperature Adjustment B/W Tracking±0.05V DC 170±2V DCService Adjustments Electronic Controls, MTS Circuit Adjustments Correction Adjustment D02Input Level Adjustment M00 Stereo Separation Adjustment M01 & M02Clock Adjustment S07 Service Adjustments Mechanical ControlsFocus part of T551

CT-32SX31E, CT-36SX31E, CT-32SX31CE, CT-32SX31UE, CT-36SX31CE specifications

The Panasonic CT-36SX31UE, CT-36SX31CE, CT-32SX31UE, CT-32SX31CE, and CT-36SX31E are part of Panasonic's renowned line of CRT (cathode-ray tube) televisions designed to deliver excellent picture quality and robust performance. These models are known for their advanced features, making them a popular choice for home entertainment enthusiasts.

One of the key features of these televisions is their large screen sizes, with the CT-36SX31 models boasting a striking 36-inch display. The CT-32SX31 models, while slightly smaller at 32 inches, offer an equally immersive viewing experience. The screens are designed with high-resolution capabilities that enhance color depth and clarity, allowing viewers to enjoy a lifelike picture.

Panasonic has incorporated various technologies into these models, such as the Digital Comb Filter, which significantly reduces image distortion and enhances the overall picture quality. This feature allows for clearer images with improved color accuracy, making it ideal for watching movies and sports. Additionally, the models are equipped with a 3D Y/C separation processing feature that further elevates the quality of video playback by enhancing the precision of image separation.

Audio quality is also a focal point of these models. The television sets come with built-in speakers, providing powerful sound output that complements the stunning visuals. With features like surround sound capability, viewers can enjoy an enriched audio experience that brings movies and shows to life.

Connectivity is another essential aspect of these televisions. They are equipped with multiple input options, including composite, S-Video, and component inputs. This variety allows users to connect various devices like DVD players, gaming consoles, and cable boxes, facilitating a versatile entertainment setup.

Durability and reliability are characteristic of Panasonic products, and these models are no exception. Built with quality materials, they are designed to last, ensuring that consumers receive value for their investment.

In summary, the Panasonic CT-36SX31UE, CT-36SX31CE, CT-32SX31UE, CT-32SX31CE, and CT-36SX31E are standout CRT televisions renowned for their large screens, high-resolution image quality, excellent sound output, and robust connectivity options. While CRT technology has since transitioned to flat-panel displays, these models remain a testament to Panasonic's commitment to quality and performance in home entertainment.
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