ViewSonic VS15197 Service Manual page 79

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LED Check
1.
Check the Infar-Red LED is working by a web cam of a cell
phone.
2.
If the LED is working normal, it looks like a bright purple spot.
3.
If the LED is off, focus the inspection on that camera module
and the connection of it.
ViewSonic Corporation
78
Confidential - Do Not Copy
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VSD241/SD-A245/CDS245

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