Cap values not on zxw and can’t find schematic Help

Hi,

zxw doesn’t have the cap values i’m looking for, need to replace them but all I know from zxw are the names:

C631_k

B848

B851

can find the schematics either to look up the values myself. In zxw it’s the iPhone 8 block model I believe.

if someone could help me out with values for each would be great

cheers

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You will be lucky find these Intel values on here. Unless you have a donor board I wouldn’t worry about those components. The board will function normal without them.

von

Hi Chris,

I'm sorry was sick had the flu (not korona)

I'm having an issue with iphone 8, back light but no display. I have a few questions I hope its ok.

Can you tell me what readings I'm supposed to be getting at test points TPO533, TPO534 and TPO535? With just battery connected and phone on in voltage mode I'm getting (TPO533) 0.05v, (TPO534) 0.05V, (TPO535) 4.14v.

But when I switch over to diode mode I get (TPO533) 0.629v, (TPO534) 0.629v, (TPO535) OL. Does this tell me I have an issue on the TPO535 line?

On J5700 I measured pin 5 supposed to be OL and got 1.5v instead. Then measured C5710 and also got 1.5v. measured caps next to them with same value and got 0.713v (C5715) and 0.672v (C5701) which both are similar readings. All measurements where taken in diode mode red on ground black on caps. Am i right to say that by this cap C5710 is bad?

von

Also Pin 6 is showing 2.8v (supposed to be OL, maybe its close enough to OL?) and Pin 8 is showing also 2.8v and meant to be around 1.5v.

All other pins are fine.

From your experience where else could I look and what do you think the issue could be? ZXW does not show me any of these values for iphone 8 that is why I am asking

I thought maybe to start a new question but though to get your input, you seem to have a lot of experience. I am very grateful for you advise and your feedback Chris. I hope you and your family are healthy. Again thank you.

von

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