Sony Ericsson P990i Working Instruction, Mechanical page 54

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Working Instruction, Mechanical

Touch Panel asm + Frame continued

Do these seven tests when the phone is reassembled to

check that the LCD unit works properly.

(

Test instruction mechanical):

2_00021-1_FEA209544_97

• Touch screen test

• Backlight brightness uniformity

• Contrast

• Display position to check correctly aligned

• Dust inspection

• Dot inspection

• Color check

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Sony Ericsson Mobile Communications AB

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