Haier NS-13CTV Service Manual

To perform a service adjustment on the Haier NS-13CTV, refer to the instructions provided in section 4 of the service manual.

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.

To adjust the horizontal shift, you can use the '5/6HSH' item with the direct access key '1'. This will allow you to modify the horizontal position of the display.

To enable the DVD input, you need to set the OP1 Bit 6 to 1. This will activate the DVD function as per the manual.

Enabling the 'OP_CHILDLOCK' function allows you to lock the menu or certain features to prevent unauthorized access, which is useful for child safety or restricting access to certain settings.

To enable the 'OP_SOUND_M' function, you need to set the corresponding bit (Bit 4) to 1. This will enable the function as per the manual's description.

To adjust the purity of the screen, follow these steps: 1. Demagnetize the CRT. 2. Loosen the retainer screw of the deflection yoke. 3. Remove the wedges. 4. Input a green raster signal and turn the screen to green raster. 5. Move the deflection yoke backward. 6. Position the long lug of the purity magnets on the short lug horizontally. 7. Adjust the gap between the two lugs so that the green raster comes to the center of the screen. 8. Move the deflection yoke forward and fix its position so that the whole screen becomes green. 9. Insert the wedge to the top side of the deflection yoke so that it will not move. 10. Input a crosshatch signal and verify that the screen is horizontal. 11. Input red and blue raster signals to ensure that purity is properly adjusted.

The purity magnets in the Haier NS-13CTV are used to adjust the purity of the screen. They are positioned on the deflection yoke and are adjusted to ensure that the green, red, and blue raster signals are properly aligned and centered on the screen. The long lug of the purity magnets is brought over the short lug and positioned horizontally to achieve this alignment.

To perform a static convergence adjustment, input a crosshatch signal. Use the 4-pole convergence magnets to overlap the red and blue lines in the center of the screen and turn them to magenta. Then, use the 6-pole convergence magnets to overlap the magenta (red/blue) and green lines in the center of the screen and turn them to white. Repeat these steps to achieve the best convergence.

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.