REFERENCE IPHONE 7 PLUS DISPLAY PROBLEM

wafo1015

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Share ko lng po gawa ko noong nakaraan, at sana makatulong po.

Model : IPHONE 7 PLUS
Problem : Striped Display (Horizontal Lines)
326107217_1907848422893521_1053299452814935148_n.jpg


Nakailang testing na din ng bagong LCD,
NO LUCK, No Display na sa bagong LCD.

Ginawa ko, bukas unit then DIODE READING sa LCD TERMINAL.
PP5V7_MESON_AVDDH_CONN abnormal reading, which is responsible for display
326050932_1134161787220935_436308273240639373_n.jpg

Akala ko U3703 (chestnut) na my salarin, pero hindi pala,
upon deeply checking Resistors and Capsitors na connected,
nakita ko na ang C3713 Caps ang may kasalan, (shorted caps)
325970982_2986158675024778_5446281982932138612_n.jpg

Pull-out Caps, Diode Read sa PP5V7_MESON_AVDDH_CONN balik normal ang value.
Assemble ang unit and testing.
326774097_884744022855258_2037535469491172111_n.jpg
325879528_747244916612072_8849438487482903877_n.jpg


Ayun at gumana.
Normal na ulit ang display.



MARAMING SALAMAT PO SA PAGVIEW.
Baka makaencounter po kayu ng ganyan at makatulong.;););)
 
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