This service manual pertains to the JVC AV-20420 Colour Television. While specific production years are not detailed, this model is characterized by its 20-inch CRT display, offering standard definition resolution. Its design likely incorporates features such as picture adjustments and various sound modes, alongside stereo audio output. Connectivity options are expected to include composite, S-Video, component, and RF inputs, with audio output ports for external devices. The television operates on AC mains power and features an analog tuner and infrared remote control, representing typical engineering for its class.

The purpose of this English-language service manual is to provide comprehensive maintenance and repair information for professional technicians. It covers essential areas including detailed troubleshooting guidance with diagnostic procedures and common fault analysis, circuit schematics, a parts list, and alignment procedures. This manual serves as a critical resource for understanding the internal workings of the JVC AV-20420, enabling accurate diagnosis, repair, and upkeep to ensure optimal performance and longevity of the unit.

This service manual pertains to the JVC AV-20420 Colour Television. While specific production years are not detailed, this model is characterized by its 20-inch CRT display, offering standard definition resolution. Its design likely incorporates features such as picture adjustments and various sound modes, alongside stereo audio output. Connectivity options are expected to include composite, S-Video, component, and RF inputs, with audio output ports for external devices. The television operates on AC mains power and features an analog tuner and infrared remote control, representing typical engineering for its class.

The purpose of this English-language service manual is to provide comprehensive maintenance and repair information for professional technicians. It covers essential areas including detailed troubleshooting guidance with diagnostic procedures and common fault analysis, circuit schematics, a parts list, and alignment procedures. This manual serves as a critical resource for understanding the internal workings of the JVC AV-20420, enabling accurate diagnosis, repair, and upkeep to ensure optimal performance and longevity of the unit.