Chapter
Problem and | Possible Solution | Service | Operator | |
Symptom to |
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| Manual | Manual |
Check |
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Image out of focus |
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Spacer balls not | Set projection lens focus so ILA® |
| 4.5 | |
visible. | spacer balls are visible. |
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ILA® Spacer balls | Adjust CRT Mechanical Focus. | 3.7 | 4.7.2 | |
visible but |
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image fuzzy. |
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CRT focus range is | Adjust electronic focus. | 3.8 | 4.7.3 | |
limited and |
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image is fuzzy. |
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CRT focus not | Set Relay Lens against back stop. |
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effective. |
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CRT focus not | Ensure ILA® assembly is installed | 4.12 |
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effective. | correctly and clamps are snug. |
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CRT focus limited | Readjust fixed rod at upper left of | 3.7 |
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due to focus rod | CRT mounting bracket. |
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range. |
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Image blurry with | Replace ILA® | Assembly. | 4.12 |
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shadow on right |
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edge. |
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Characters do not | Replace ILA® | Assembly. | 4.12 |
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appear legible. |
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CRT focus problem | Replace CRT. |
| 4.7 |
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limited to single |
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color. |
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G2 | Reset G2. |
| 3.10 |
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Sensitivity offset set | Reset sensitivity offset. |
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too high. |
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Picture geometry |
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Picture not | Adjust using PHASE and POSITION. |
| 4.8 | |
centered. |
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Picture size | Adjust using SIZE and BLANKING. |
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incorrect. |
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Picture wrap around | Reset left or right BLANKING. |
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left or right |
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edge. |
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Retrace lines on | Reset TOP BLANKING. |
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raster. |
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Model 330, 340SC, and 370SC Service Manual |
