Power Up

I am trying to repair my Yamaha RX-V657 amp which does not power up anymore. The repairman needs the wiring diagram as where I am now, there is no dealer. Please help

Good Morning. When I try to turn on my laptop, it will power up, but it won't display. I have cooling fans hooked up and they power up, but nothing at all on the screen.

i have a gateway laptop model #Q5WTC . it shut down and won't turn back on . what do i do

I changed the DC power jack on my laptop because the original was bad. After replacement I plugged the charger in and the orange power light came on so I powered up the computer and it worked fine. The battery charged up and after I used it for an hour I shut down the computer. Later the same...

I must have nothing plugged in the USB slots when I power up the PC otherwise it just freezes after a few minutes. It is no problem if I plug something in after the PC has booted into Windows but this is annoying because both my mouse and my keyboard are using USB connectors. My motherboard is...

I bought a new Toshiba - Radius 2-in-1 approx. 2 months ago. I was watching a video and felt the bottom of the laptop getting hot. It then died because of low battery so I plugged it in and it came back on. I have never turned off the laptop before so I decided to use the shut down option and...

My toshiba laptop won't power up. I bought a new battery. It powered up for about an hour and now it won't power up again. I removed the battery, unplugged it, held the power button in for 30 seconds and it still won't power up. I took the battery out and tried to run it off the ac adapter...

I have the Toshiba C55t-A5218. I couldnt get windows to come up, but later did. However when the laptop was doing a restart, it died and now it wont power up at all (with adapter or battery. Any suggestions. The adapter is producing 19 volts. I have also completed an ohm test on the power...

my toshiba l875 wont power up no lights no nothing i recenctly formatted the hard drive but it was starting up. I let the battery go completely dead now it wont do any thing

My laptop powers up but won't stay on the screen stays black an it turns off again after 15 seconds

Samsung 50 inch tv doesn't turn on and has no sound and no nothing. Made a weird noise then shut off none know what's wrong with it thanks

My macbook air cant power up, when i press power button it stays back and starts beeping without stopping... What hardware issue should be this one?

i have a sony vaio vgn-fs640/w and when i power it up i hear the power up sound but then i cant get sound through head phones jack or speaker for anything else i only her sound when i turn the computer on I'm completely stumped ive went to the advanced sound settings and when i click test i hear...

RCA 10" tablet RCT6203W46. Recently added employer's Outlook server account, employer required enabling the "remote delete" option in admin. With some trepidation, I did. Email and contacts sync'd fine. The next morning when I turned the tablet on, I got the factory reboot screen, but all my...

Hi everyone, I have a Toshiba Satellite l755-s5214 (2009 model) that I bought a few years back. Recently, I decided to replace the CPU from its original i3 2310m to a i5 560m. When I first disabled the laptop and tried to turn it back on, the battery and AC lights came on. The power light comes...

I have asus q500a laptop with windows8.. It does not turn on. I used to removed battery , unplug it, press power button 30 sec/60 sec and start again. this trick was working... but now this trick is not working at all... I plugged in other monitor but same things. I see power light, flashes...

Hi, So I had just logged into my laptop (hadn't even opened any applications yet) when there was a beep and the laptop went completely dead. I try presssing the power button and the power light comes on, but the laptop doesn't actually power up. There is no sound coming from anywhere (eg, the...