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Essential guidelines for safe operation and servicing, including handling high-voltage circuits and CRT.
Explains the properties and handling of lead-free solder used in manufacturing.
Recommends suitable types and wire sizes for lead-free solder for service work.
Details how to identify PCBs manufactured using lead-free solder.
Illustrates and labels the buttons and functions of the remote control for easy operation.
Identifies and labels the external controls and connectors on the front and rear of the TV.
Provides additional pinout details for IC601, continuing from the previous page.
Provides voltage measurements for various ICs under specific test conditions for diagnostics.
Summarizes key features and technical specifications of the GP31 chassis.
Details test points and expected voltage values for calibration and verification.
Procedure to reset the television unit using button combinations for self-check.
Step-by-step guide on how to access the television's service mode for adjustments.
Details options and standard values available for adjustment within CHK1 service mode.
Instructions for adjusting VCJ parameters in CHK2 service mode.
Guidance on performing pincushion adjustments in CHK3 service mode.
Steps for adjusting white balance settings in CHK4 service mode.
Method to safely exit the service mode and return the TV to normal operation.
Lists essential equipment needed for performing electrical adjustments and tests.
Procedure to adjust the RF AGC signal level for optimal reception.
Confirms the output level of the VIF detector using specific test points and patterns.
Verifies audio circuit performance by checking for buzzing during playback.
Checks and confirms anode and heater voltages for the CRT.
Adjusts the PAL color output signal for accurate color reproduction.
Calibrates the NTSC sub-tint signal for proper color hue.
Verifies the operation of the protection circuit against voltage variations.
Adjusts the sub-brightness and sub-contrast levels for image quality.
Adjusts the picture focus for sharp image clarity.
Calibrates the purity of colors on the screen by adjusting magnets.
Adjusts white balance and purity for accurate color rendering.
Aligns color convergence for a sharp, undistorted image.
Adjusts CRT cut-off levels for proper picture display.
Calibrates vertical deflection parameters like slope and shift for correct image height.
Fine-tunes white balance in low and high light conditions for color accuracy.
Provides the schematic diagram for the Cathode Ray Tube (CRT) printed circuit board.
Displays measured waveforms at various pins of IC451 for diagnostic purposes.
Shows measured waveforms at different pins of IC601 for troubleshooting and analysis.
Displays waveforms for various components like IC801, Q551, Q501, Q601, Q602 for diagnostic checks.
General