iPhone 6S half backlight need solution

Question

iPhone 6s

Repair information and guides for the iPhone 6S released by Apple on September 25, 2015. Models: A1688, A1633

2687 Vragen Bekijk alle

Ajit Sable @doctorgadget

Rep: 35

2

1

Gepost: 18 mrt. 2019

Opties

iPhone 6S half backlight need solution

I got device which was having no backlight at all , after diagnosis I found the filter capacitor was Burnt instead of changing the capacitor with new one , I did direct jumper , this cause backlight came but the half side of lcd , how to get other half backlight of iPhone 6S

should I put the capacitor on , or change the backlight ic ?

Please share the solution I and Save the phone , as this is my first quation to the forum , please guide me, thank you .

Beantwoord! Bekijk het antwoord Dit probleem heb ik ook

Is dit een goede vraag?

Ja Nee

Score 2

Voeg een opmerking toe

2 Antwoorden

Gekozen oplossing

arbaman @arbaman

Rep: 102,6k

10

54

291

Gepost: 18 mrt. 2019

Opties

There is no way to tell for sure without testing where the problem is. Backlight is brought to screen with one anode and two cathods. Each line protects the board with one filter, which is there to shield the backlight driver and components. Sometimes damage is limited to the filter, other times it goes further. Bridging a filter is a bad idea as any injury to the screen next time will likely directly destroy the backlight driver, capacitors, inductors and so on.

You can try replace all filters, if backlight is still half faulty you’ll have to dig deeper in the circuit.

Was dit antwoord nuttig?

Ja Nee

Score 1

2 opmerkingen:

i change one capacitor , could you tell us which is another filter capacitor of backlight

18 mrt. 2019 door Ajit Sable

@doctorgadget You'll have to replace FL4211, FL4212, FL4213 or make jumpers for testing purposes. They're not capacitors though, they're ferrite beads. If you were to bridge a capacitor all you would get would be a shorted to ground line.

19 mrt. 2019 door arbaman

Voeg een opmerking toe

i change one capacitor , could you tell us which is another filter capacitor of backlight — Ajit Sable
@doctorgadget You'll have to replace FL4211, FL4212, FL4213 or make jumpers for testing purposes. They're not capacitors though, they're ferrite beads. If you were to bridge a capacitor all you would get would be a shorted to ground line. — arbaman