I have this lg projector dlp and it has 3 RGB lcd modules when I switch on the unit I see only green screen no OSD nothing.just the green light remains on .can someone tell me what to look as most of the voltages are normal no shorts anywhere .is it the DMD chip bad or is it the leg engine bad
Thanks...
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Lg hs201 projector DLP
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You right. This is the worst machine they have built as there is always corrosion on the ssd side so the dust accumulates that area and 90% of the time takes away the ssd and what makes it worse is they have glued the ssd with epoxy.
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please check the ssd power section this board has only the ssd getting short check the impedance of the inductors of the ssd supply.
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iMac 27" A1419 820-3299 usb disabled at login page
hello
I have this weird machine that came with power issue fixed the power supply now the machine boots up but the USB ports don't work.For some strange reason if I press Option and boot from pen drive I can use the usb all ports work.there is something that disables the usb when comes to login page. I reprogrammed the bios same problem.the ssd in this machine has Catalina and when I go to boot with high Serria usb bootable it gives me a cross that os not compatible with the machine.only Yosemite usb bootable works.So is there some terminal command that disables the USB ports.is it that...
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Mbp A2289 no video only backlight
Hey
i got this laptop mbp A2289 2020yr some strange problem I see only backlight come on which means the voltage to the panel is there. The laptop works very well on the external monitor.I have replaced another screen still blank display, also change lvds connector same issue.
then I remove the lvds connector from logic board clean it I saw display once after that same thing only backlight is on.anyone faced this issue
thanks...
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dell la-C361p no video power okay
hello
so i got this dell xps 15-9550 la-c361p board and the power IC for vccgt was burnt AOZ5019, Replaced it i get all voltages cpu and also gpu voltage 0.9v and vccgt 0.7v.Now i believe this machine has common issues.it power on and then i can see keyboard backlight ok.Also when i take off the ram it gives me ram led error.another thing when i press D and power on my lcd gives a test RGB pattern.I have changed the bios, also i see activity on the oscilloscope the data input and output try to say the cpu wants to fire up.The intel me flash tool used is 11.0.0.1178 which i cant find .i...
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a1278 820-3115 sleep led on continuously
hey all,
i have this board earlier it was dead no power i changed the smc and all worked fine.Then after 5 days the customer gave back with it stuck on sleep mode.
so i checked the rams then checked all voltages they are all fine.Put another smc and also programmed the bios.Still same issue.the funny part is when i remove the rams i get long beeps indicating no ram, but still the sleep led is on continuously.I get plt_rst 3.3V ok.also LPC_ad0 ,ad1 ad2 ad3 all communicating. also i see bios communicating.
I just narrow it to 2 issues now pch or cpu has anyone faced this problem...
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Re: Hp Bios Need DAG7ALM8C0 Rev C
hey all
i have this same laptop no display but cpu has all the voltages somehow i go to clean the ME with system tools v13.0 i get too many errors.can someone pls clean my bios thanks....
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Re: Looking for Lenovo c200 bios
Hey anyone have the schematics for this machine
Thanks
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Re: A2251 (820-01949 board) PMU IC U7800 CALPE-PMU
I have checked the battery cable all good as the battery charges well.generally this happens when some sensor is not reporting as the fans are too fast and cpu is really too hot without any process.I downgraded to Bigsur worked for 15mins without safe boot and again back to the same boot and shutdown.is there a way to disable the gpu.
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Re: A2251 (820-01949 board) PMU IC U7800 CALPE-PMU
further i changed the battery same issue.I also changed the pmic again thinking that is bad. But this is soo stranged in safe mode the laptop works fine all devices work well wifi touchbar everything. it has to do something with the T2 rom.I put a blank T2 rom and went in dfu in apple configurator it updated /restore the the machine but the same thing happens.is there a virgin rom repository file i can use.
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Re: A2251 (820-01949 board) PMU IC U7800 CALPE-PMU
hey
i have the similar model a2251 with the pmic blow.I replaced it and the machine started but macos boots and i login in and it hangs. and restarts again,this loop goes on. But when you go in safe mode everything seems to be fine the touch bar wifi all work but the machine is a little sluggish.
My question is , is this pmic programmable 338S00267-a0,I have tried to do recovery cmd option + R same thing happens it install but when comes to the page for user account restarts.can it be the T2 rom corrupted.
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a1989 820-00850 pp5v_g3s error
hello,
I have this machine a1989 it has 20V ,also battery charges but does no come on.
I have the following
12.6v ok
3.3v ok
pmu 1.8v ok
pmu 0.6v okay
pmu 1.1v okay
pmu 0.8v okay
pp5V_G3H fluctuatin 2.1v to 4.8v not stable ,but also loaded with ext dc voltage.No shorts of anything wrong.
also trakpad does not click.
so in short my pp5_g3sh is not correct.
any idea thanks.
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MacBook Air A1932
hey all,
I got this machine for repair A1932 the t2 rom missing U4770 i have a blank one and trying to revive/restore failing to do so.Does anyone have a rom dump i can use will it work.
what are my options.
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Re: i need bios for intel NUC NUC7I7BNH
i have this nuc 7i7bnb and the power led blinks 3 times and a pause is says ram module. I have changed the ram also change the bios and cleared the intel ME, still same problem just blinking 3 times.i have all the voltages i see the cpu get warm.Just wondering if it has ec bios in the IT8987VG.anyone have schematics for this model
thanks
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Re: Please help: Asus fx506l no power
check the spi resistor to hold 7pin should be 3.3k
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