LG CT815 Service Manual page 187

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11. TEST MODE
Item
(3) Backlight Test
Item
MP3 Bell Test Start
(4) MP3 Bell Test
LGE Internal Use Only
Order
Backlight Test
Start
IF OK, tab "YES"
button
Order
IF OK, tab "YES"
button
- 188 -
Description
1) Dark -> Little Dark -> Bright
This operation is executed at two times
2) Put a finger over the sensor and Wait for
about 10 sec
Description
Ringtone (MP3) is played
regularly
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes

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