2.) No Backlight
Check C811(+)=14.5V
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| NG |
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| Check adapter or MB |
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| OK |
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| Check ON/OFF signal |
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| NG |
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| Check Interface board |
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| OK |
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Check U801 PIN11,14 have the output of square wave at short time |
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| NG |
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| Change U801 |
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| OK |
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| Check Q803 PIN5, 6, 7, 8 have the output of square wave at short time. |
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| NG |
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| Check Q803 |
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| OK |
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| Check the output of T801 |
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| NG |
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| Change T801 |
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| OK |
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| Check connecter & lamp |
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