Haier 1407 Service Manual

To diagnose issues with your Haier 1407 Colour Television, you should carefully read the service manual provided. The manual contains detailed instructions and troubleshooting steps to help you identify and correct problems.

Replacement parts must be identical to those used in the original circuits. Service should be performed by qualified personnel only. Replacement parts which have special safety characteristics are identified in the parts list of the Service manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement part shown in the parts list of the Service manual may cause shock, fire, or other hazards.

The AGC speed and take-over settings can be adjusted using the bits 5 and 6 in the OP4 section. The AGC speed can be set to different values, and the AGC take-over can be enabled or disabled based on the settings.

The 'TUNER AGC' output is used for the tuner automatic gain control.

The 'Volume Control' on the Haier 1407 is used to adjust the volume of the output. It is connected to Ch 2 output (-) and Ch 2 output (+).

For dynamic convergence adjustment, move the deflection yoke up and down to overlap the lines in the periphery. Then, move the deflection yoke left to right to overlap the lines in the periphery. Repeat these steps to achieve the best convergence. After adjustment, fix the wedge at the original position, fasten the retainer screw of the deflection yoke, and fix the 6 magnets with glue.

The 'PROG+' and 'PROG-' keys are used for programming or navigating through different settings or channels on the device.

The 'VOL+' and 'VOL-' keys are used to adjust the volume of the device, increasing or decreasing it respectively.