Konka TV part of the main chip of the substitution method models

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 the external circuit is shown in Figure 1.

Figure 1 LA76810 LA76820 circuit with changes in Figure

Several changes in addition to the above, other control functions are identical. LA76820 LA76810 substitution is required for the appropriate changes.

LA76832 for large screen color TV, on the basis of the LA76810 made the following changes (the two are not interchangeable):

(1) LA76810 identification of 22 feet for the SD signal output; and LA76832 of 34,37 feet to 22 feet external pincushion correction (E / W) output.

(2) Konka T258SA such as big screen in "A" system for machine SECAM decoding is not applied, so the original set LA76832 SECAMB-Y and SECAM RY input canceled, will LA76832 34 feet to "X-ray "Enter, LA76832 35 feet to identify the color standard output.