The Sencore CG159 Deluxe Color Generator manual provides detailed instructions for setting up and operating the device, including the use of controls such as the TV channel selector, pattern switch, and color output control. It also offers troubleshooting guidance for color TV issues, including checking and adjusting purity, static and dynamic convergence, and demodulator phasing, along with maintenance procedures and a trouble chart for diagnosing problems.
Manual Overview
The Sencore CG159 Deluxe Color Generator service manual provides detailed guidance for technicians on operating, troubleshooting, and maintaining the device. The manual emphasizes safety precautions, advising the use of isolation transformers and proper handling of high voltage points to prevent electrical shock. For troubleshooting, the manual includes a comprehensive trouble chart that assists in diagnosing common issues with the generator. Calibration and adjustments are facilitated through various controls, including the TV channel selector, pattern switch, and color output control, with additional sub-controls for fine-tuning the dot size and timer settings. The manual also provides board-level guidance, including disassembly instructions and a schematic with a parts list for in-depth repairs. The generator supports seven standard patterns, such as color bars and crosshatch, which are essential for testing and adjusting color TV circuits. The manual ensures technicians can effectively use the generator for tasks like checking purity, static and dynamic convergence, and demodulator phasing.
Quick Issues Covered
- Diagnose color TV issues using standard color bar patterns.
- Perform static and dynamic convergence adjustments with crosshatch patterns.
- Trace circuits using detailed schematics and parts list.
Overview
The CG159 Color King III Deluxe Color Generator is designed for electronic maintenance, offering stable circuits and ease of use. It features adjustable dot sizes and RF channel selection from channel 2 to 6. The generator provides seven standard patterns, including color bars, dots, crosshatch, vertical and horizontal bars, single crosshatch, and single dot patterns. It is equipped with various controls for pattern selection and adjustments, making it suitable for tasks like static and dynamic convergence, overscan, and linearity adjustments.
Specifications
- RF Output: Front panel switching of any low band channel 2 – 6.
- Modulation: Any one of seven patterns: Color Bars, Dots, Crosshatch, Vertical Bars, Horizontal Bars, Single Crosshatch, Single Dot.
- Crystal Complement: 1 – 189 KHz + .005% for timers and 1 – 3563.795 KHz +.001% for color bars, 1 – 4.5 MHz for sound carrier.
- Semiconductor Complement: 14 – 2N5172, 4- 2N4248, 1 – 2NS5227, 5- 1IN34A, 2 – 1M695, 1 – 12 Volt zener diode and 1 – 8 volt zener diode.
- Power: 105 – 125 VAC 50/60 Hertz, 30 watts
- Size: 10-1/4 x 9-1/2 x 4 inches
- Net Weight: 9 pounds
Controls & Indicators
The Color King has three main controls: the TV CHANNEL selector switch, the PATTERN switch, and the COLOR OUTPUT control. There are three subcontrols: the 4.5 MHz sound carrier switch and the VERT CTR and HORIZ CTR controls for the single line and dot patterns. The dot size adjustment and the timer adjustments are available as secondary controls near the bottom of the panel. The TEMP CONTROL light is a heating element automatically controlled with a thermostat for cold weather operation.
Installation / Setup
Refer to the PDF for details.
Operation
The operation of the Sencore CG159 Color King Deluxe Color Generator involves using its main controls: the TV CHANNEL selector switch, the PATTERN switch, and the COLOR OUTPUT control. There are also subcontrols, including the 4.5 MHz sound carrier switch and the VERT CTR and HORIZ CTR controls for single line and dot patterns. The dot size and timer adjustments are secondary controls located near the bottom of the panel. The TEMP CONTROL light is a heating element controlled by a thermostat for cold weather operation.
The Pattern switch allows selection of one of seven available patterns, with composite sync fed to the modulator to maintain sync when switching patterns. The available patterns are:
1. Dots: 117 small size dots, adjustable for DC convergence, with white dots indicating proper convergence.
2. Single Dot: A single dot with adjustable position for easy DC convergence.
3. Crosshatch: 9 vertical and 13 horizontal lines for dynamic convergence, over scan, and linearity adjustments.
4. Single Crosshatch: A single adjustable line for dynamic convergence and centering purity ring magnets.
5. Vertical Bars: 9 vertical bars for adjusting dynamic vertical convergence.
6. Horizontal Bars: 13 horizontal bars for horizontal adjustments.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
When testing electronic equipment, there is always a danger present. Unexpected high voltages can be present at unusual locations in defective equipment. The technician should become familiar with the device that they are working on and observe the following precautions:
1. An isolation transformer should always be used on equipment having the chassis tied to one side of the AC power line.
2. When making test lead connections to high voltage points, remove the power. If this cannot be done, be sure to avoid contact with other equipment or metal objects. Place one hand in your pocket as a safety precaution and stand on an insulated floor to reduce the possibility of shock.
3. Discharge filter capacitors before connecting test leads to them. Capacitors can store a charge that could be dangerous to the technician.
4. Be sure your equipment is in good order. Broken or frayed test leads can be extremely dangerous and can expose the technician to dangerous potentials.
5. Remove the test leads immediately after the test has been completed to reduce the possibility of shock.
6. Do not work alone when working on hazardous circuits. Always have another person close by in case of an accident. Remember, even a minor shock can be the cause of a more serious accident, such as falling against the equipment or coming in contact with higher voltages.
Download MANUAL Service manual (PDF – 2.2 MB)
Sencore CG159 Deluxe Color Generator Manual: Troubleshoot and calibrate color generator systems. PDF size: 2.2 MB.
- Brand: Sencore-cg159-deluxe-color-generator-instruction-service
- Model: MANUAL
- Type: Service manual
- File size: 2.2 MB
Overview
Brief overview of the product.
Specifications
- Key spec 1
- Key spec 2
Controls & Indicators
Control panel/button layout.
Installation / Setup
- Step 1…
- Step 2…
Operation
Basic usage, modes, cycles.
Troubleshooting & Error Codes
| Issue / Code | Fix |
|---|---|
| Example | How to fix… |
Safety & Warnings
- Important warning…
Downloads
Download MANUAL service manual (PDF)
Sencore CG159 Deluxe Color Generator Overview
The Sencore CG159 Deluxe Color Generator is a versatile test instrument designed to produce precise color video signals for calibrating and troubleshooting television and video equipment. Widely used by broadcast engineers, technicians, and service professionals, this device generates a variety of standardized color bars and test patterns to ensure accurate color reproduction and signal integrity in video systems.
Main Features and Specifications
- Generates multiple standard color bar patterns including SMPTE, EBU, and custom test signals
- Adjustable color saturation, hue, and brightness controls for fine-tuning output
- Composite video output compatible with NTSC and PAL systems
- Stable and low-noise signal generation for precise calibration
- Compact, durable chassis designed for field and bench use
- Easy-to-read front panel with clearly labeled controls
Basic Usage and Operation Tips
To operate the Sencore CG159 Deluxe, connect the composite video output to the video input of the device under test. Power on the generator and select the desired color bar pattern using the front panel switches. Adjust the saturation, hue, and brightness controls to match the calibration requirements of your equipment. Always allow the generator a warm-up period of a few minutes to stabilize the output signal before making critical adjustments.
Troubleshooting and Maintenance
If the output signal appears distorted or unstable, verify all cable connections and ensure the device is powered correctly. Regularly inspect and clean the output connectors to prevent signal degradation. In case of persistent issues, consult the service manual for detailed diagnostic procedures and component-level troubleshooting. Avoid opening the unit unless qualified to do so, as internal adjustments require specialized knowledge.
Safety Reminder
Always operate the Sencore CG159 Deluxe Color Generator in a dry, well-ventilated area. Avoid exposure to moisture and extreme temperatures. Disconnect the device from power before performing any maintenance or service. Follow all safety guidelines outlined in the manual to prevent electrical shock or equipment damage.