Member Avatar for dlpca1

Hi All,
First time post greetings to all.
I have a sony PCG-7Y1L laptop which hungs up on the SONY logo with all LED's going can anyone assist in helping to fix the problem.

Thanks

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Thread context: a Sony PCG-7Y1L that halts at the VAIO splash with the internal keyboard and optical drive unresponsive. looked at software-level fixes and correctly pointed toward early POST/hardware causes. Below are additional, model‑agnostic diagnostics and practical checks that are not just reboots or reinstall attempts.

Start with power and basic bus checks. Remove AC and the main battery, then press and hold the power button for 30–60 seconds to discharge caps and reset the embedded controller. Reconnect AC (leave battery out) and try a cold power‑on. Verify the AC adaptor output with a multimeter if available (set to DC, measure barrel vs. center). A weak/failing adaptor or bad power rail often produces odd POST behavior.

Try an external USB keyboard plugged in before power‑on to see whether any keystrokes are accepted; if an external works, the internal keyboard or its ribbon may be at fault — reseating or temporarily disconnecting the internal keyboard is a noninvasive test. Watch and listen on power‑on: do fans spin, does the drive spin, are there beeps or LED blink patterns? No fans/no beeps usually points to a power or board issue; fans but no POST points to chipset/firmware/CPU problems.

Verify storage and optical hardware without relying on the Vaio to boot. Remove the HDD and attach it to another PC via a USB adapter/enclosure to run SMART tests and file checks. Inspect the optical drive connector and try powering with that device removed. Open the case for a careful visual inspection (bulging capacitors, burn marks, loose sockets) only if comfortable and static precautions are observed.

If the machine still never advances past the splash and minimal tests show multi‑component failure, the likely paths are a BIOS/firmware corruption or a motherboard-level fault. BIOS reflashes and board repairs are model‑specific and risky; a professional shop can confirm EEPROM reflashing or component level repair. Given the laptop age, compare repair costs to replacement before authorizing major board work.

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Member Avatar for caperjack

try safe mode ,hitting f8 on boot up .try last known good configuration if that don't work ,try safe mode ,see if you can get in .thats the first you cant get in use your recovery cd and reinstall windows

Member Avatar for dlpca1

try safe mode ,hitting f8 on boot up .try last known good configuration if that don't work ,try safe mode ,see if you can get in .thats the first you cant get in use your recovery cd and reinstall windows

Nothing works still hangs up on the vaio screen keys don't work or any cd that you put in the tray.

Member Avatar for comlor

I assume you are referring to the BIOS splash screen when you first turn on your laptop.
Can you access the bios by hitting the F2 key. Maybe a different key for your computer as it is different for a lot of vendors. I am pretty sure sony is F2 though.

If you cannot access the bios this mean your computer is not posting and is most likely hardware related.

The most common issue for this is memory but i have been seeing a lot of hard drives causing this.

Try reseating your memory modules and if you have more than one memory module try swapping the modules one at a time and in different slots and see if you get any results.

also try booting with out the hdd installed. If your computer posts w/out the hard drive then your hdd is most likely bad

How old is your computer?

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