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Re: Compaq620 no 5v 3v in coil.
pin13 is 4.2vComment
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Re: Compaq620 no 5v 3v in coil.
so EN PIN13
Master Enable Input. The REF/VREG5/VREG3 are
enabled if it is within logic high level and disable if it is
less than the logic low level.
easy! low its disable and high enable!
EN Threshold Voltage
Logic-High Min Voltage shows only with 1V
and
Logic-Low Max Voltage shows only with 0.4V
Conclusion i think its ok right?Just cook it! It's already broken.Comment
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Re: Compaq620 no 5v 3v in coil.
if EN pin is HIGH, then REF, VREG5 and VREG3 should give their respective voltages - 2v, 5v and 3.3v.
Also check pin 23 PGOOD if it is giving you 3.3v.Comment
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I have old game console which have connected to 220v outlet by previous owner and It is not able to turn on.
I checked continuity of fuse in PSU unit with a multimeter which is shown in the below picture with a orange circle around it, and It seems that fuse became open circuit.
I also found that as well as bulging capacitor, there is unidentified coil which has residue all over its surface
unidentified coil which has residue all over its surface
I want to replace this round black fuse and unidentified coil if it got broken.
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Hi everyone
I'm struggling to point out what part is this? It is a coil, but the parameters say: 10OHM - 50% - 1A - 0.05Ohm
So it is a coil with 0201 dimensions, 1A max current, 0.05ohm resistance but what is 10ohm? For a coil we need specs like 1uH or so.
IAny ideas? It is from a MacBook A2681
Thank you... -
Hi all, the PSU originally had a no 12v issue where as soon as I bridged the 5v standby to the ACDC_stby the psu would switch itself off completely. I monitored the voltage on the main filter caps while doing this and saw that the PFC was bringing the voltage up to around 360vdc before shutting down. Given that I saw that as a little low I replaced the PFC feedback resistors from a donor PSU and that got it to power on, without a load no coil whine is present and there is a stable 12v however as soon as I put it in the PS4 it starts whining really badly, however 12v remains stable but after a... -
I have a CD unit which is came from saturn game console.
It always perceived Any retail CD or CD-R as Audio-CD.
Of course I changed laser head and adjust pot of laser head nearby, but It always failed to perceive as saturn game CD.
I think that this problem probably begins When I tighten IFT coil too hard with small screw driver and suddenly I heard some kind of snap or cracking sound
I desoldered this IFT coil and It is 7pin IFT coil and written "4120 009 62VK" on the surface.
Is there any way to identify its frequency in order...11-11-2022, 05:31 AM -
Hello,
can anyone measure the resistance on coil L12 3.3V (near USB, EMMC chip) and coil L46 1V near CPU1 ?
thanks....03-23-2025, 02:21 AM
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