SELECO svp310 320 350service free download

File name svp310_320_350service.pdf

SERVICE ADJUSTMENTS SVP310-320- 350 SERVICE ADJUSTMENTS 93 SERVICE ADJUSTMENTS SVP310-320- 350 94 SERVICE ADJUSTMENTS SVP310-320- 350 SERVICE ADJUSTMENTS These adjustments must be performed when particular components, as CRT, yoke, etc., have been replaced. MAGNET ADJUSTMENT Signal: video composite 15KHz connected to VIDEO 1. UPC ON (projector working at 32 KHz). non-pole 50 mm CENTERING MAGNETS ADJUSTMENT ? Adjust CONV/CENT H V to 50 ? UPC ON ? Rotating the centering magnets align the raster in the center of the tube screen. 2/4 POLE ADJUSTMENT 1. Select the HATCH COARSE test pattern, using the TEST button on the full function remote control. 2. Adjust the focus potentiometer of the corresponding CRT completely in anti-clockwise. 3. Adjust the 2 pole magnet till the flare is equal on both sides of the vertical and horizontal lines (see following figure). 95 SERVICE ADJUSTMENTS SVP310-320- 350 not correct correct 4. Select the DOTS test pattern, using the TEST button on the full function remote control. 5. Adjust the focus potentiometer of the replaced CRT slightly clockwise. 6. Adjust the 4-pole magnet till the dots have the best circular shape in the center of the screen (see following figure). not correct correct Note. Repeat the 2-pole and 4-pole magnets alignments if necessary, because they influence each other. 7. Select the HATCH COARSE test pattern, using the TEST button on the full function remote control. 8. Adjust the focus till the flare disappear from the lines. How to adjust the 2/4 pole X Y X: adjusts the power of magnetic force Y: adjusts the direction of the magnetic force 96 SERVICE ADJUSTMENTS SVP310-320- 350 SERVICE MODE Conditions: Signal generator: - 15 KHz, grey scale. Plug a jumper into JP1 position of the JP101 connector placed on the PC157 microboard. Switch-on the projector by the mains switch, on the screen will appear flashing: FACTORY SET Into this mode are possible to carry out the factory adjustments, as the following: G2 AND WHITE BALANCE ADJUSTMENT. Press OP