LG -T300 Service Manual page 86

CHECKING FLOW
START
Is the connection of
CN302 with Camera ok ?
YES
Check the each voltage
Level of C337(2.8V), C331/C330
(1.8V) is right?(LCD_BL_PWM
signal is high Level)
YES
Check the Waveform of
I2C CLK(TP03),I2C DATA(TP04),
CAM_MCLK(TP05, 26MHz) ?
YES
Check the Waveform of
Data pins on CN302 ?
YES
Does Camera work
properly ?
YES
Camera working well !
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Only for training and service purposes
NO
Reassemble camera connector
NO
Resoldering or Replace U302
C337 (TP01), C311 (TP02),C330 (TP06)
NO
Replace U102or Change the board
NO
Replace Camera Module.
NO
Replace U100 or Change the board
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4. TROUBLE SHOOTING
4. TROUBLE SHOOTING
with camera.
LGE Internal Use Only