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  1. J

    Acer VN7-592G Gaming Laptop- battery issue

    acer vn7-592g runs fine on wall charger. Windows shows battery charging. Purchased 2 new batteries and have same issue. If power cord is removed, system powers off... If trying to start system on battery only, system powers on, then off again in a few seconds. Then repeats until battery is fully...
  2. J

    HP AIO - 24-b223w - Won't power on, can't track issue.

    One thing i know pretty well is Ohms law. And what I was explaining is that by setting my CV at 1.1v, the system wanted more current than I had my bench supply set to. So in order to get the voltage to stay at 1.1 i had to up the current. Basically, on this power supply, if i set the current...
  3. J

    HP AIO - 24-b223w - Won't power on, can't track issue.

    Dead on the money. U34 gets warm / hot when I inject 1.1v @ 0.75 amps. Any less and the CC protection would kick on and drop the voltage causing the chip not to heat up. This would point to the SuperIO, but I wonder if that chip was bad all along, or I blew it when shorting the other...
  4. J

    HP AIO - 24-b223w - Won't power on, can't track issue.

    I went ahead and cut the trace. I verified to continuity through the cut. On the trace side, its a dead short to ground. On the side of PU21 pin3 I don't get short to ground.
  5. J

    HP AIO - 24-b223w - Won't power on, can't track issue.

    WOW!!! Thanks for all the extra info there. That really helped a lot. No resistor on PR324 so cutting the trace look like my option... Before I do that I just want to be very clear on evertything so i don't screw more up.. lol So I'm looking for a short to ground on +3v_ALW once PR324 is...
  6. J

    HP AIO - 24-b223w - Won't power on, can't track issue.

    ok... I'm sorry for this, but we need to start over. I broke something else when troubleshooting and fixed that issue, and then created another. I replaced the part i thought was heating up, but apparently the part heating was on the opposite side of the board and i didn't think to flip it...
  7. J

    ultrasonic cleaner way to use

    I've been looking. Can anyone recommend a good ultrasonic cleaning solution for PCB's? An Amazon link would be great if you have one handy, but I can look up whatever too.. Thanks
  8. J

    HP AIO - 24-b223w - Won't power on, can't track issue.

    I follow what you're saying now, and I understand the confusion. I got a little ahead of myself when I was writing out the numbers on CN19. Let me do this again.. Pin 1 - Ground - 0.0v 2 - Pwr ON LED - Bounching 0-3.29v 3 - PWRBTN# - 3.29v 4- +5V_S5 - 0.0v So i have 3.3 on PWRBTN# at both...
  9. J

    HP AIO - 24-b223w - Won't power on, can't track issue.

    I don't expect to find 5v at PWRBTN# However I would think I would find 5v on +5v_S5PWR correct? (IDK.. If I knew i wouldn't have paid for the help on this forum.. lol) I don't think running a wire will help because the path from SW1 to CN19 is fine. Correct me if i'm wrong, but on SW1 i...
  10. J

    HP AIO - 24-b223w - Won't power on, can't track issue.

    I've got the new chip soldered in, and I'm back to testing. On the board view, Looking at SW1 It has 4 pads. 2 are ground and 2 are PWRBTN#... Both PWRBTN# pads have 3.29v on them.. The actual connector with the ribbon cable for the power button is CN19 and has 4pins.. Pin1 = Ground, Pin2=...
  11. J

    HP AIO - 24-b223w - Won't power on, can't track issue.

    Well I just did it. In poking around i slipped and shorted 2pins on an 8pin chip (PU11), Which I think is a voltage converter, and let the smoke out of it. I just ordered another, so hopefully i can get it swapped and keep testing. I guess I'll be back in a few days... lol
  12. J

    HP AIO - 24-b223w - Won't power on, can't track issue.

    I will check if I have 3v at power button, but Please answer me this? When i look at the schematic / boardview at the power button connector, they only show 5v_S5 PWR.. I don't see any of the 4 pins labeled as 3v.. So should i be looking for 5v or 3v? (Im not trying to be a wiseass, I'm just...
  13. J

    HP AIO - 24-b223w - Won't power on, can't track issue.

    I'[m working on an HP AIO. board number DAON83MB6G0 rev3. I have the baordview and schematics. The board won't turn on. At the power button, i don't have 5v. The schematics shows bot S0-S5 states and A G3 State.. The only power rails i have with the power adapter hooked up, are those listed...
  14. J

    820-3787 - Green Light - No Fan Spin - Pulls 28ma

    I have some 32 and 40ga jumper wire i use on phones. I use that.
  15. J

    820-3787 - Green Light - No Fan Spin - Pulls 28ma

    No continuity. Upon closer inspection I found a bad trace at R4810. So I'll run a jumper wire. Thank you... Any recommendations on what gauge?
  16. J

    820-3787 - Green Light - No Fan Spin - Pulls 28ma

    LOL why is that strange? Side question.. To test just the keyboard itself, should i be able to check pin 5 on the connector (SMC_ONOFF_L) and see 0 ohms between that and ground? Also, I can turn it on/off using R5116 pads to Ground, but not C/R4810 pin 1, which I think i should, correct?
  17. J

    LA-B753P CPU error, 7 beeps. Alienware 17 R2

    Sorry for jumping in here, but i do have the boardview for this board if interested. I'm also looking for which chip is the bios chip. It has 2 chips. 1 is 8m and is other is 64m... Also, I've tried extracting the dell bios from their .exe file from the website.. Does anyone know if that works?
  18. J

    How to make SUPER accurate Needle Point Test Leads.

    This is my secrete for making really accurate test probes for my multimeter. Yes, you can buy them. Or you can make them yourself. What I've done is take some cheap Black/Red leads with a standard probe point, and 2 Med Safety pins. Cut the pins off, and solder them to the test leads with...
  19. J

    820-3787 - Green Light - No Fan Spin - Pulls 28ma

    Yes i read the thread, but didn't fully understand it. With the R designation I assumed there was a resistor there, and it looks like there should be a 1/10th watt resistor on the Schematic. Anyways, Yes, it turns on/off correctly from the pads without disconnecting the power. As its located...
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