Motorola A3100 Troubleshooting Manual page 30

• Can't turn on:
• Check Camera damage or not
• Check camera module assembly
• I2C interface working normally (you could verify this by LCD
backlight level adjustment or turn on VGA camera)
• Check camera power when turn on ( R178_1.8V, R751_2.8V,
R752_2.6V )
• Check camera reset pin (R755) signal should pull high after turn on
camera
– AF no function:
• Check S7 SMT
• Check S7_pin3 signal from 2.6V to GND when you press the
capture key to the half.
• Check camera module AF pad short with shielding case or not.
– Capture key no function:
• Check S7 SMT
• Check S7_pin1 signal from 2.6V to GND when you press the
capture key.
Service Engineeing & Optimization
Level 3 , Rev.1.0
Can't Take Picture