Service Manual
Chapter 3. | Troubleshooting Guide |
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| Problems |
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| Condition | Probable Reasons |
| Solutions | |
1. | Blank Screen |
| 1. | Sound only, no picture. | 1. | Parts failure. | Change all the parts | |
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| 1. | X2 |
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| 2. | REG5 |
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| 3. | U1 |
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2. | Buttons don’t |
| 1. | Buttons malfunction. | 1. | Micro SW NG | 1.Change Micro SW | |
| work |
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3. | incorrect color |
| 1. | VGA output malfunction. | 1. | Parts failure. | 1.Change U15 | |
| display |
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4. | LED no lit |
| 1. no power. | 1.LED failure | 1.Change LED | |||
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5. | Remote not |
| 1. | Remote control | 1.IR1 failure | 1. .Change IR1 | ||
| functions |
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| malfunction. |
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6. | No TV image |
| 1. | Display malfunction. | 1.TDA8275 NG | 1.Change Y301 | ||
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7. | Black & white |
| 1. | Only black and white | 1.X’TAL NG | 1.Change X2 | ||
| image only |
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| color in TV,AV,SVHS |
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| modes. |
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8. | No display in |
| 1. | No display in AV,SVHS | 1.SAA 7135 NG | 1.Change U5 | ||
| AV,SVHS |
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| modes. |
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| modes |
| 2. | display correctly in TV |
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| mode. |
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9. | PIP MODE |
| 1. | The desktop can not | 1.X’TAL NG | 1.Change X1 | ||
| malfunction |
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| work in PIP MODE |
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Version 1.0
Page 15
