I'm having an issue with this motherboard where it will turn on but the debug card says 00, with a red light on motherboard.
I've checked the voltage rails and they all appear to be there. I'm getting 12V at Drain on the top row of MOSFETs. The gates all are 0V, so the Source is 0V.
[url=https://ibb.co/QNBY4m7][/url]
To the left there is a gate driver [URL="https://www.renesas.com/us/en/document/dst/isl6208-isl6208b-datasheet"]ISL6208BCRZ[/URL], marked as PU2 on the motherboard - this is getting 5V in on VCC. This driver is connected to the three...
decayed.cell
Member
Last Activity: 04-19-2022, 01:04 AM
Joined: 09-10-2018
Location: Melbourne
-
Biostar Hi-Fi A88S3E MOSFETs Not Turning On
Last edited by decayed.cell; 06-10-2021, 09:24 AM. -
Re: Mackie CR4 monitors
I replaced the diodes and all the caps on the board, so I figure its probably something else... -
Re: Mackie CR4 monitors
So I'm getting 0V instead of -12V on one of the diodes, just wondering if anyone know whats the problem could be now?
The 0.6V line leads from the TL074CD VCC- pin...Leave a comment:
-
Re: Seasonic X-560 and Corsair AX650 - fail to power on after a week of use
How many degrees and how long should I heat it for?...Leave a comment:
-
Re: Mackie CR4 monitors
Do you mind taking some photos of what you did?...Leave a comment:
-
Re: Seasonic X-560 and Corsair AX650 - fail to power on after a week of use
I think I'll just try replacing the ICs instead. ICE2QR4765Z and APW7159A...Leave a comment:
-
Re: Seasonic X-560 and Corsair AX650 - fail to power on after a week of use
At a quick glance nothing appears to be burned, and no bulging capacitors...Leave a comment:
-
Seasonic X-560 and Corsair AX650 - fail to power on after a week of use
I have a Seasonic X-Series 560W and a Corsair AX650 here which suffer the same symptoms (they are based off the same platform, so I guess its not surprising).
They will power on a computer fine for a few days. But after a few days, they refuse to power on unless the switch at the back is flicked off and back on again. Eventually, the power supplies will stop working. However, if left alone for approximately a week or so, they will power on again properly and the cycle begins again.
What could be the cause of this issue? -
Re: Mackie CR4 monitors
So I have no sound out my CR4's and I went ahead and replaced all the diodes and the resistors, as well as all the electrolytic capacitors except the big 4700uF ones. However now I'm getting approximately 16V, -16V, +6V, +16V on the four measurement points rather than -20V, -12V, +12V and +20V. Anyone know what to do now?Leave a comment:
-
Re: Samsung 60" plasma power supply issue - BN44-00514A
I had a look on Taobao, and it appears to be that part number for BAV70 A4 are LBAV70LT1G...Leave a comment:
-
Re: Asus U31SD BIOS Dump
Thanks. Worked for me when (in hindsight a bad idea) Winflash crashed during a BIOS update...Leave a comment:
No activity results to display
Leave a comment: