Test Items - Sony Vaio PCG-505F Service Manual

• PASSWORD BYPASS
If the BIOS is locked with a password and you don't know the password, use this function.
To use this function, another machine is necessary.
PASSWORD BYPASS is selected from the Start menu, the following screen appears.
Password Bypass Program 1.0
(C)1997 Sony Corporation All rights reserved.
Input last 7 digits of Serial number
(If serial xxxxxxxx-ooooooo,input serial number
Input serial number
Enter the last seven digits of the serial number and a temporary password will appear.
Bypassed pass word
• QUIT MAIN MENU
Self-Diagnostics ends.

2-6. Test Items

• Machine Configuration
Select which PCG-505-series main unit you are using.
As some test items operate based on this configuration, this should be the first selection made.
• Audio test Group . . .
For audio testing.
No details are defined. You listens to the sound and evaluates the results.
• Battery test . . .
Test for charging and discharging of the battery.
If the battery is almost fully discharged or overcharged, an error may occur.
• Check System BIOS Revision . . .
The BIOS version will appear.
This test always ends in normal status. It's up to you to evaluate the results.
• FDD test . . .
Test to find defects in a floppy disk drive.
Be sure to insert a floppy disk without a write-protect tab for self-Diagnostics.
If some defect is detected, the data may be lost. The data should always be backed up.
• HDD test . . .
Test for the hard-disk drive.
The recognition test is done in the start-up process with the BIOS.
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2-3 PCG-505F/505FX (U/C)