yes amazing!! thank you like alwas mon! you don't know what you are for me...like a legend, a god....a myth! i hope i can meet you one day just to say "thank you"
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hi to all, i dont know the history of this notebook
it has black screen.
i have power led and battery led when i connect the charger.
i've tried an external screen and a different ram module. no luck
fan start spin and nothing else. black screen
i've tried to flash another bios same thing. now when i connect the power supply, it auto power on, but alway with black screen and nothing else
it stays on 0,220a03-18-2025, 03:30 AM -
Hi everyone
I have a problem with this laptop that won't turn on.
The +VCORE is not present and doing some measurements on the ISL95859 I notice this:
VIN present 19.5V
VCC present 5V
VR_ENABLE present 3.3V
PWM_A present 2.5V
FCCM_A not present
PWM1_B present 2.5V
PWM2_B present 2.5V
FCCM_B not present
PWM_C present 0.32V
FCCM_C present 5V
In these conditions should the ISL95859 works and therefore enable the FCCM_A and FCCM_B pins or do I have to check other lines for it to be enabled?
Maybe the... -
hello guys,
i need help to repair a edm-033 ps2
history : as always hdmi port and usb ports destroyed after unplugged
after change them, ps5 dead too : 1 beep, no blue light. after inspection 1.8v power was shorted, and because of dead panasonic chip. after remove it : no short anymore
so i changed it
now i have got 5v stby,, 3.3v stby, 3.3v power, 1.8v power and no short on them
but the ps5 is dead again : 1 beep, near 10 seconds with power lines and then off, no blue light ...
i don't see any projection of liquid metal on pcb.
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Hi guys!
I searched for the term "dead short" in the forum but no specific thread came up however if I'm just blind and couldn't see the thread talking about this please forward me to that direction.
So my problem is I don't know how to find the source of a dead shorted voltage rail. Dead short = ~0 ohm resistance.
I have two VGAs (HD 4850 and HD 4870), both dead shorted to ground on the memory rail. I have the boardview file for the 4870 and the memory rail consists around ~7892346 capacitors...
I have a bench PSU and if I try to inject voltage the voltage... -
Hello everyone hope all doing well!
I have this PSU (GPS450-AA delta oem) around for like 4-5 years and I had it recapped early 2020 or 2021 with mostly UCC KY and Nichicon PW's. The bulk was and still is fine, the original Ltec's were bloated and empty. The previous issue was some major coil whine noise and at times random shutdowns when going idle. Today it started tripping the mains breaker and I think I have dead APFC mosfets (20N60C3). Right now upon checking I have the Q1 and Q3 FETs dead so far and I guess those are responsible for the PFC circuit. The only thing I care is If there...
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