Re: DA0ZAWMB8E0 schematic

Any recommended free viewer for that boardview file?

Re: PS4 HDMI Issue

Welp I've gone ahead and replaced the chip. Ive checked against the pinout and everything seems like it should be fine, no shorts anywhere, and yet still no image.

Im kinda stumped now. By every account I can think of I should have a working board and yet I dont.

So I have a PS4 sitting on my bench this time. The jack was definitely damaged almost beyond recognition so I swapped it out with a new one. The joints didnt come out terribly great but after following some of Andrew Paul's videos I was able to test each and every pin and had continuity without issue.

Problem is that I still get a black image and no sound when the device is powered on. Im using a monitor that auto cycles through inputs if it reads no signal but it will stay on the HDMI input so I know its getting at least that far.

I've checked for missing components...

Re: iPad Mini low voltage on VCC_MAIN

Cool that just the kind of assumption break I was looking for. I had assumed that since I knew boost converters were a thing that if the schematic said 4.8V that it was being upped to that voltage but yeah now that I think about it if you wanted your main power rail to be 4.8V itd be easier and more cost effective to simply have your power source as 4.8V

And yeah I pretty much stopped checking rails as soon as I thought something was off with PPVCC_MAIN so Ill continue with checking other power rails.


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Hi there, Im a tech working at a repair shop and I've volunteered myself into the position of learning board level repairs. We have an iPad Mini that was sold to us and the plan was to refurb it for resale. Unfortunately while another tech was attempting to replace the LCD he KIA'd it. So now I've taken it as my pet project to practice diagnosing the board and fixing it, at this point the knowledge gain is more valuable than harvesting it for parts. I should note that the board looks super clean, no obviously missing components, no clearly burnt out ones, etc.

I started measuring...

Re: New Members - please post your introductions here

Hello, repair tech and security enthusiast. I've become the intrepid designated board level repair guy by volunteering myself because it's interesting.

Still have a lot to learn and basically self teaching myself. I have to pretty much prove myself in order to convince the owners to get better equipment and to start accepting more complicated board level repairs so here I am