No power Toshiba l505 laptop

[karolpl2004]

one of my clients brought me his toshiba, stating it does not turn on at all. I figured bad power jack or psu. got new jack installed it, also tried a different psu and still the same problem. I sent the board in for service (ebay) figuring the board was bad. yesterday the board came back, along with a note that the board has been repaired and works successfully. i plugged it into the laptop and still no power. i tested various parts of the board with a multimeter and there is power to the board, it just does not turn on or charge or do anything. upon testing though, there was one spot on the board that after plugging it in, it gets very hot even though the laptop is off.
question
1) did the guy on ebay ripped me off? (i figure he didnt even do anything with it)
2) is the board beyond repair?

below is a picture of the chip that gets very very hot instantly as i plug in the adapter:



Chip is labeled : s1125 ti 9aj p6de

 

[kiddagoat]

That chip looks to be something in relation to the card reader and/or the ports on the right side there. Texas Instruments controllers are used a lot in Toshiba laptops.

When you plug in the AC adapter, is there any lights on the front or side giving an indication as to say it is getting AC power?? Does the battery light appear to be on when the battery is attached?? Have you tried powering it on without the battery?? Are you sure you got the proper DC Jack for the unit?

I can verify your part number for you, I have Toshiba ASP access.

I would also check any of the ribbon cable connections going to and from the board for corrosion. I had a Dell in shop right now that doesn't power on because the keyboard ribbon has corroded some.

Although Toshiba typically uses the same screws throughout the assembly of the laptop, just double check that you aren't accidentally shorting the unit out using the wrong screw.

 

[karolpl2004]

tried all ribbons plugged and unplugged. no leds on the board. i verified some points on the board with a multimeter and they show voltage but other than that nothing.

 

[karolpl2004]

ok im coming back to this topic becuase i purchased another board (used). first, when i plugged all ribbons it would not turn on. found the webcam ribbon was culprit of the problem. with that unplugged, the laptop boots but as soon as i see the desktop, it locks up... is this board bad too?

 

[karolpl2004]

cpu burn in locks up, currently doing ram tests..

 

[bmaverick]

cpu burn in locks up, currently doing ram tests..

Does that mean the thermal paste needs to be re-applied to prevent the burn lock-up effect?

 

[karolpl2004]

i applied a nice coat of arctic silver upon installation of the board.. knoppix also locks up.. im gonna keep trying replacing hardware..

 

[de.das.dude]

dude, subbed. i have a similar problem with one of my "underling's" laptops. refuses to power up.

 

[karolpl2004]

dude, subbed. i have a similar problem with one of my "underling's" laptops. refuses to power up.

these laptops suck.. i still cant figure it out. maybe ill try a new processor from ebay.. but then again.. if the cpu was bad, it wouldnt even boot...

edit: ram tests passed fine. next up is the hard drive..

 

[Solaris17]

i have a l505D-GS6000 the pictures make it look similar. let me give you a bit of advice ABSOLUTELY make sure that you are not touching any of the metal tape or flexing the board out on any of the internal mounting posts. if need be use a penny wrapped in wiring tape to space gaps etc. try taking the original CPU and ram and putting it in the new board. honestly I dont understand what it could possibly be and it is probably just something stupid the boards in these systems are actually pretty tough haven taken mine apart probably mroe then 5 times I can tell you they are pretty hard to mutilate.

i would personally check the power brick if you havent voltage comming out of it means nothing. Alot of these newer models have failsafes and universal adapters and bricks from other models WILL NOT power the laptops even if voltage ratings are similar. both the brick and the jack contain eeproms that have to match up its a hardware version of POST

 

[OneMoar]

that chip you have Circled is part of the VRM its normal for it to get hot
check the hard drive
also check to see what the Disk controller mode is set to in the bios
if its set to ACHI set it to IDE-native < this will make windows crash on boot if the wrong option is selected

 

[karolpl2004]

i have a l505D-GS6000 the pictures make it look similar. let me give you a bit of advice ABSOLUTELY make sure that you are not touching any of the metal tape or flexing the board out on any of the internal mounting posts. if need be use a penny wrapped in wiring tape to space gaps etc. try taking the original CPU and ram and putting it in the new board. honestly I dont understand what it could possibly be and it is probably just something stupid the boards in these systems are actually pretty tough haven taken mine apart probably mroe then 5 times I can tell you they are pretty hard to mutilate.

i would personally check the power brick if you havent voltage comming out of it means nothing. Alot of these newer models have failsafes and universal adapters and bricks from other models WILL NOT power the laptops even if voltage ratings are similar. both the brick and the jack contain eeproms that have to match up its a hardware version of POST

strange, the jack doesnt seem to have anything special in it. i replaced it with a new one. the brick is good. i have even tried a original toshiba adapter with slightly higher amperage to see if power was an issue and the same thing happens. it boots to desktop and locks up. currently im running a sector check on the hard drive but its done half way and no errors. im going to check the bios again to make sure the disk is set properly.. but after that, im out of ideas. i feel bad for the guy because i have been working on this thing for 3 weeks now. the guy from ebay who "supposedly" fixed it the first time, and then the second time told me its unfixable was a pain in the ass also..


update: hard drive is ok. runs fine in safe mode, but normal mode is still screwed up.. im gonna proceed with reinstalling windows...

 

[Solaris17]

strange, the jack doesnt seem to have anything special in it. i replaced it with a new one. the brick is good. i have even tried a original toshiba adapter with slightly higher amperage to see if power was an issue and the same thing happens. it boots to desktop and locks up. currently im running a sector check on the hard drive but its done half way and no errors. im going to check the bios again to make sure the disk is set properly.. but after that, im out of ideas. i feel bad for the guy because i have been working on this thing for 3 weeks now. the guy from ebay who "supposedly" fixed it the first time, and then the second time told me its unfixable was a pain in the ass also..


update: hard drive is ok. runs fine in safe mode, but normal mode is still screwed up.. im gonna proceed with reinstalling windows...

i feel bad for you at this point. A random lock up and bad parts lead me to believe hardware straight away. I never even considered a windows corruption.

make sure to back up the customers data

 

[karolpl2004]

i think the board i bought is bad.. this is gotta be the most back luck i had fixing a laptop... sound doesnt work, and the usb ports dont work. which from what im seeing on google is a sign of a bridge needing reballing.

 

[kiddagoat]

Definitely a bad motherboard. If you give me your serial number I can see what Microcenter has the motherboard for. We always try to order straight from Toshiba so it will be a new board.

Either the serial or model number (PSK, PSU, etc... not the L505D or A505D number).

 

[karolpl2004]

V000185580

 

[kiddagoat]

Looks like the cost of that board, NEW, is $335.00.

I don't know what the used market is going for. That is the price for new. Generally if Microcenter goes 3rd party or refurbished, the price is less and they will tell you if they can't get it straight from the manufacturer.

 

[karolpl2004]

eh, we'll see if the second "used" one works this time..

 

[kiddagoat]

Fair enough. Toshiba is usually one of the more reasonable ones when it comes to part cost. Now Sony on the other hand..... yeah don't get me started on them.

 

[karolpl2004]

lol

 

[karolpl2004]

another board came in, same issue =( no usb and no sound. after researching a bit more i ran into http://forums.toshiba.com/t5/Audio-Sound/no-sound-usb-on-satellite-l505d-gs6000/td-p/172564/page/13. and it actually worked. just wanted to share this with anyone having a similar issue