5. Troubleshooting (continued)
5.4 Abnormal Screen:
ACER G24 |
| 23 |
Go to cover page
Check R.G.B video signals
output from PC host
to
OK
Check the R.G.B signals
on I314 pin40, pin42, and pin45 which should have voltage level at 0.7Vpp max.
OK
Check all LVDS signal pins
of I314 whether if
output correct signals.
Failure Point
NG
1. Check connected PC host if there’s no R.G.B signals output.
2. Video signal cable disconnected.
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| Failure Point |
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| Green, Blue, Red signals are flow in the same | |
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| path. In the case, the Red signal is example. | |
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| 1. | Printed wire is broken between |
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| I314 pin45. |
NG |
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| 2. | R391 is short. | |
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| 3. | C356 is open. |
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| 4. | R390 is open. |
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| Failure Point |
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| 1. | The I314 is defected. |
NG |
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| 2. | Printed wire is broken between I314 and P306. | |
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OK
Proceed to “5.8 Checking the resolution change
IC movement” section.
