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Revision to Toshiba Satellite L655D-S5095 Troubleshooting

Jerry Wakai

[flag|student owned]
== Screen won't turn on, even when power is on ==
=== Brightness Setting ===
Before tearing apart your laptop, make sure that you haven't accidentally turned the screen brightness setting all the way down.
=== System Reset ===
As with many cases, the problem could be fixed by a simple a system reset. Power off your computer, unplug everything from the unit including the AC, remove the battery, press and hold down the power button for 30 seconds, replace the battery and then AC, power on. Assuming the display begins to work, at the Toshiba logo screen press 'F2' to enter the BIOS Setup, in setup press 'F9' to load setup defaults, press 'F10' to save and exit.
=== Broken LCD ===
Hold the laptop next to a lamp or shine a flashlight on the screen.
Is anything visible? If you can see a very faint display of what the screen should be displaying, there is a problem with the LCD's screen backlight not working.
This warrants LCD screen replacement.
To replace your LCD, check out this youtube video.
=== Faulty Graphics Card ===
Can you hook up an external monitor to confirm the laptop's graphics subsystem is working? Check the owners guide to find the Fn+key combo that activates an external monitor. If you get a display, that will rule out bad graphics chip.
If there is no display, you have a problem with your graphics card.
=== Insufficient Power ===
If your battery and/or AC adapter is broken, your computer won't get sufficient power to its display systems. Try powering the laptop on battery, then connected to AC with and without battery. If display still does not change from black screen, try a brand new adapter.
If this still doesn't work, look for a short or a poor connection around the power switch. The cable/hinge may be shot. The cable is seated into the motherboard and into the LCD panel. It can come loose and cause the problem you are having. Since the cable runs through the hinge, it is possible that it has frayed and/or gotten cut. Try to reposition or reconnect the cable, or maybe buy a more reliable cable.
Also, try changing the BIOS settings; specifically: "Dynamic CPU Frequency Mode." Change the setting from "Dynamically Switchable" to "Always Low."
=== Defective BIOS ===
If you are not seeing lights flashing, or hearing any hard drive action, and the reset did not work, your BIOS has probably become corrupted.
BIOS Recovery procedures
You may need to dismantle your unit partially to check what make of BIOS you have, before using the above recovery procedures.
Disassembly Instructions
Identify and replace your BIOS. If you are not comfortable or not able to try these things on your own, then it's time for some professional help.
=== Too much? ===
If you are not comfortable or not able to try these things on your own, then it's time for some professional help.
To locate a Service Center, go to:
For additional self-repair troubleshooting guides, check out Toshiba's website:
== Sound isn't working ==
Sound is not coming out of your laptop. You already checked to make sure that your volume is not muted or on a low setting and the sound is still not working.
=== Sound Driver Is Disabled ===
After making sure that your volume is not muted, check to make sure that your sound driver is enabled. In "Control Panel" under the Device Manager there will be a sound option. After opening the sound option, find your sound driver and check to make sure it is not disabled. To check this, right click on your sound driver and choose to enable.
=== Sound Driver Was Uninstalled ===
Did you install something new or do an update on your laptop recently? If so, there is the possibility that this new install hasn't been updated yet and restarting your laptop could be an easy fix.
If restarting your computer doesn't fix the sound and the sound driver is no where to be found, try going to Toshiba's manufacturer website. Go to the "Support" section and there should be links for drivers. After entering Toshiba Satellite L655D S5095, find the sound driver and re-install it.
=== Headphone Jack Still Works ===
Try plugging headphones into laptop and see if they work. If your headphones still emit sound, but the speakers themselves do not work, it is possible that a prong is bent back so that the laptop speakers are disconnected once the headphones are removed.
When you un-plug the headphones the the prong springs back and reestablishes the speaker connection, but your connection may be disconnected. An unorthodox solution to this common problem is to insert the headphones and wiggle them within the jack. Oftentimes this reestablishes the connection.
=== Speakers Are Broken ===
Assuming sound is still not coming out of your speakers after checking the sound driver and the headphone jack, you likely have a hardware issue as opposed to a software issue. Perhaps your speakers are blown and need to be replaced.
== CD Drive doesn't open ==
=== Drive Not Recognized ===
If the DVD/CD drive is unresponsive, first check to see if your system is recognizing it. In '''My Computer''', under '''Devices with Removable Storage''', there should be a drive named something similar to '''DVD/CD RW Drive'''.
If it's not there, and you have Windows Vista or XP, this Toshiba fix should do the trick:
If you have Windows 7, Microsoft has an extensive troubleshooting forum here:
=== Will Not Open ===
If everything seems like it should be working and the drive still won't open, your drive may be dead or dying. Straighten a paper clip and (gently!) push it into the hole in next to the drive's eject button. This will open the drive and allow you test its functionality.
=== Does Not Read ===
Once you've opened the CD drive, try inserting a CD you don't care much for. Check '''My Computer''' for any recognition of your disc. If the CD operates properly and you are comfortable with using a paper clip to open your drive, then more power to you.
Otherwise, here's an easy, step-by-step guide for replacing it: (GUIDE HERE)
== Laptop Won't hold a charge ==
While not connected to the charger, your laptop won't stay powered for more than a couple minutes, or won't charge at all.
=== Bad Battery ===
Oftentimes when a laptop will not hold a charge when disconnected from its power source, the problem is a dead battery. Lithium-ion batteries have a sort of half-life, which means after time, the battery will not be able to hold a charge for a very long time. In order to test to see if this is the case, disconnect the battery from the laptop, and try to turn the device on while the AC adapter is connected. If the laptop turns on and stays on, then your battery is bad and needs to be replaced.
=== Bad AC Adapter ===
When your laptop seemingly won't hold a charge and it is determined that it is not the fault of the battery, it is probably the fault of your AC adapter. In order to determine if this is the problem, disconnect the battery from the laptop, and try to tun the device on while the AC adapter is connected. If the laptop will not turn on at all, then your AC adapter needs replacing.
== Microphone Doesn't work ==
You're trying to Skype, but your friend can't hear you. You're microphone isn't a registered device on your Window's Control Panel. Often, a faulty microphone is caused by buggy software. Luckily, buggy software can be fixed painlessly by a quick reinstall.
=== Installed New Windows Driver, Microphone Stopped Working ===
It's possible that Toshiba's software has bugs and has caused your computer to stop talking to the mic. No worries, try uninstalling the microphone driver via the "Control Panel". A common malfunctioning driver is the "Conexant" microphone driver. Once uninstalled, install the ORIGINAL microphone driver. Remember, the newer driver broke your machine, you should eliminate factors that are potentially causing your machine to malfunction. [|Toshiba Sound Drivers] Click on the '+' icon next to "Conexant Audio Driver" to reveal older software versions.
=== Microphone Works Sometimes, Control Panel Doesn't Detect It ===
Again, this could be a software Issue, uninstall and reinstall an updated microphone driver from Toshiba. [|Newest Sound Driver]
=== Last Resort ===
Without resorting to anything drastic, like replacing your mic (IFIXIT GUIDE HERE), try seeing if your computer is in fast-boot mode. Reboot your computer into its BIOS (you hold down a function key when the computer is starting up) and browse (with you arrow keys!) to see if your computer is in fast boot mode. If so, turn it off. Save your settings, reboot. If all else fails, try replacing your microphone. Here's a helpful guide: (IFIXIT GUIDE HERE).

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