Image 1 — Can anyone tell me how this part of a Playstation power supply works?
Image 2 — Can anyone tell me how this part of a Playstation power supply works?

Can anyone tell me how this part of a Playstation power supply works?

edit

https://ibb.co/Z1RCLNgQ

i have corrected the mistake and now it's all good. Diode Inc.'s GCE marking in SOT-23-5 is a mosfet, Diode Inc's GCE marking in SOT-23-3 is a precision shunt regulator.

in short, the circuit creates a steady voltage and a switchable ground from a 120v-240v AC source to power an optoisolator to inform the power supply controller of whether there's mains voltage or not.

Original: I'm trying to draw up the schematic for the Lite-on versions of the Playstation 5 PSU and for the life of me I don't understand what's going on with this section of the PSU.

At a High level I get what's going on. When the 12v is applied, the AC from the bridge rectifier is turned into DC, knocked down by a series of resistors, then used to power (somehow) the sending side of an optoisolator (the other side of the opto sends a signal to the main PSU microcontroller)

More low-level, I can't make heads or tails of it. I'd also like to try and identify the component marked FC.

u/PublicPolicyAdvocate — 5 days ago

BDJB on phat disk edition on12.70?

I put my phat disk edition on 12.70 away because the hour-long Y2JB entry point + p2jb kernel exploit was inconvenient.

MR. Mario2011's podcast just mentioned that bdjb now works up to 12.70... maybe using the blu-ray disk entry point + net control kernel exploit?

Apparently you just run P2JB once to jailbreak the console, send over the bdunpatch.elf, then you can use an updated blu-ray disk to jailbreak in seconds?

Can anyone confirm that? Thanks!

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u/PublicPolicyAdvocate — 3 months ago

Does LC's enamel wear out? Why does it take so much effort to get my Flame pan clean?

edit: the concensus seems to be that once a LC pot can't be cleaned with warm water and dish soap, or boiling with some baking soda, that the enamel has failed and the pan is irreparably damaged.

Does the enamel wear out? Seems like everytime i use this smaller Flame i have to clean it in this order:

  1. LC's cleaner/protectant

  2. Hot soapy water

  3. Barkeepers friend

  4. 2 cups hydrogen peroxide boiled, mixed with baking soda, then boiled for 5 minutes, then srubbed while boiling with a blue scotch-brite pad at the end of a bamboo scraper.

  5. Repeat peroxide/baking soda until clean.

  6. Wash with soap and treat with LC cleaner/protectant before putting away.

As you can imagine, that's a lot i have to do to keep my Flame DO looking the way my Caribbean Blue DO does. Has the enamel failed on this pan, allowing bits of carbon to get stuck in the pits of the enamel? Is it warranty-able?

u/PublicPolicyAdvocate — 3 months ago

P2JB + Y2JB really buggy? Anyone else?

Anybody else with issues? Here's just a few that i've seen so far.

  1. Jailbreak completes but autoloader fails to run.

  2. Pop-ups that are supposed to be disabled clearly aren't.

  3. Any other combo besides y2jb 1.5 + p2jb 2.3 pretty much never works (the 5/26/2026 build).

I just wonder if im doing something wrong here. I get it its not gonna be perfect so its not a complaint. But the 7.61 jailbreak was sooo much smoother.

u/PublicPolicyAdvocate — 4 months ago

Samsung QN65Q80A, boot loop, backlight test passes ONLY when ribbon cable disconnected.

hey all, i have a QN65Q80A that im trying to get fixed. I followed the information floating around the internet, which revolves mostly around process of elimination. its generally understood that if you disconnect power from the Power Supply Board to the mainboard that the TV will power on its backlights and they'll stay on.

i've noticed that:

if the mainboard is powered and the backlight ribbon and the backlight ribbon cable is plugged in, i'll get no response from the backlights.

If the mainboard is powered and the ribbon cable is disconnected, the backlights will blink around 10 times and stay running until the TV clicks back off. (perhaps an indication of a signal failure?) If the mainboard is not powered and the backlight ribbon cable is disconnected, the backlights will blink around 10 times and stay on indefinately.

so my question:

what's the next test to determine whether to replace the mainboard or the backlight controller board? can we assume that the backlight controller board is working OK if the backlights will blink and stay on indefinately?

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u/PublicPolicyAdvocate — 5 months ago