Panasonic CT-32SX31CE Color Temperature Adjustment B/W Tracking, Complete Adjustment, ±0.05V DC

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Procedure:

1.Connect the oscilloscope to TPY1.

2.Apply a color bar signal in main and PIP (PIP on).

3.In the Serviceman Mode for making electronic adjustments, select the DAC adjustment (P03) for PIP Sub-Subcontrast so that child (PIP) level is 90% of parent (MAIN) signal (See Fig. 29)

A

Ax0.9

 

Figure 29. Waveform

Color Temperature Adjustment (B/W Tracking)

Serviceman DAC Adjust. (C00) (C01) (C02) (C04) (C05) Minor Touch-Up Method

OBSERVE low and high brightness areas of a B/W picture for proper tracking. Adjust only as required for “good gray scale and warm highlights”.

1.LOW LIGHT areas – In Serviceman Mode for making electronic adjustments, select Cutoff (C00) RED, (C01) GRN, (C02) BLU and adjust the picture for gray.

2.HIGH LIGHT areas – In Serviceman Mode for making electronic adjustments, select Drive (C04) GRN, (C05) BLU and adjust the picture for warm whites.

Complete Adjustment

Preparation:

1.Turn the Receiver “ON” and allow 10 minutes warm up at high brightness.

2.Apply a color bar signal with color “OFF”.

3.Turn the SCREEN control (part of FBT T551) fully counterclockwise.

Procedure:

Preset the following Serviceman DACs for best results:

•C0 . . . . . . . . . . . . . . 128

•C1 . . . . . . . . . . . . . . 128

•C2 . . . . . . . . . . . . . . 128

•C4 . . . . . . . . . . . . . . . 64

•C5 . . . . . . . . . . . . . . . 64

1.Connect the oscilloscope to TP37 (L-Board).

2.In Serviceman Mode for making electronic adjustment, select the Sub-Bright DAC (B02).

3.Press the R-Tune key on the remote.

4.Observe the oscilloscope waveform at Horizontal rate and adjust the Serviceman Mode Sub-Bright DAC (B02) level until a scanning period of 2.3±0.05V above DC ground is measured, as indicated in Fig. 30.

2.3±0.05V DC

0V DC

Figure 30. TP35 Waveform

5.Press the R-Tune key on the remote.

6.Connect the scope to RED Cathode (KR) on the CRT-Board.

7.In the Serviceman Mode for making electronic adjustments, select the RED CUTOFF DAC (C00).

8.Press the R-Tune key on the remote.

9.View scope trace at Horizontal rate and adjust the Serviceman Mode DAC (C00) level until a scanning period of 170±2V above DC ground is measured, as indicated in Fig. 31.

10.Press the R-Tune key on the remote.

11.Write the same C00 data to C01 and C02.

12.Press the R-Tune key on the remote.

13.Turn the Screen Control (part of FBT) slowly clockwise until a slightly color horizontal line appears.

14.Adjust DAC C01 and C02 until the horizontal line becomes white.

15.Press the R-Tune key on the Remote

170±2V DC

0V DC (Ground)

Figure 31. KR Waveform

16.In the Serviceman Mode for making electronic adjustments select the DAC DRIVE adjustments (C04) GRN, (C05) BLUE and adjust for warm white in a white color bar pattern.

17.Apply a monoscope pattern and check for a good picture.

18.EXIT the Serviceman Mode.

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Contents Main Manual NA8MLImportant Safety Notice Schematics, Voltages and waveforms Service Notes Chip Component InstallationHow to Replace Flat-IC Leadless Chip Component surface mountProcedure Horizontal Oscillator Disable CircuitPreparation Receiver Features Remote Control Sensor Location of Controls ReceiverQuick Reference Control Operation Controls InsideLocation of Controls Remote Disassembly for Service Important Notice Back Cover Removal Screws at top edge Screw by Antenna jacks Screw at lowerRight corner Left corner ScrewChassis Service Adjustment Procedures Source Voltage Chart140.0V B+ Voltage Confirmation High Voltage CheckWhen the CRT or the Yoke is Replaced Purity and Convergence ProcedureVertical Raster Shift Adjustment Only for Purity Adjustment Final Convergence Procedure see FigDynamic Corvergence Adjustment Service Adjustments Electronic Controls procedureXV Adjustmentprecise adjustment DAF AdjustmentYH Adjustment VR2 for Vertical dynamic convergence Permalloy Convergence Corrector Strip Part No FMK014ZZConvergence Magnets and Wedges Location Serviceman Mode Electronic Controls Quick Entry to Serviceman ModeTo toggle between Aging and Serviceman modes Exiting the Serviceman ModeFor Adjustments Press Volume Up/Down onRemote Control to adjust Press Channel Up/Down onGeometry Adjustments Default Level MTS Adjustment 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 Instructional Flow Chart for Serviceman Mode Press Action + Volume Up Simultaneously on ReceiverCUT-OFF Adjustments PIP Adjustments Service Adjustments Electronic Controls Sub-Contrast AdjustmentTint/Color Adjustment PIP Sub-Contrast Adjustment P03Color Temperature Adjustment B/W Tracking Complete Adjustment±0.05V DC 170±2V DCService Adjustments Electronic Controls, Correction Adjustment D02 MTS Circuit AdjustmentsInput 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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