1. Konka "E"-type substitution of the main chip machine TB1240N/TB1238AN are 56 feet, but the different functions of individual pins, so TB1240N and ep1c6t144c8n datasheet and TB1238AN chips are not interchangeable. TB1240N chip is based on an increase in the TB1238AN following functions: (1) things, "pillow school", keystone correction and ep1c6t144c8n price and angle correction; vertical and ep1c6t144c8n suppliers and horizontal EHT EHT compensation; (2) increase the separation of carrier-carrier and two ways in the video sound isolation capabilities; (3) increase the U / V interfaces at the same time abolished the AV SW (switch) and Audio ATT (attenuation audio) circuit. 2. Konka "A" substitution of the main chip machines LA76820 LA76810 chip is based on an increase in the quality improvement circuit. LA76810 LA76820 of 34,37 feet with changes in th...