Toshiba TECRA A9 Series Maintenance Manual

2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures
TECRA A9(S5/P5/S200) Maintenance Manual (960-633)[CONFIDENTIAL] 2-11
 1R9-B1V output (P66:MUX- CH1)
Error code Meaning
E0h 1R9-B1V voltage is over 2.40V when the computer is powered on/off.
E1h 1R9-B1V voltage is 1.53V or less when the computer is powered on.
E2h 1R9-B1V voltage is 1.53V or less when the computer is booting up
E3h 1R9-B1V voltage is 1.53 or more when the computer is powered off.
E4h 1R9-B1V voltage is 1.53V or less when the computer is suspended.

Toshiba TECRA A9 Series Specifications

General

Processor	Intel Core 2 Duo
Display	15.4-inch
Display Resolution	1280 x 800 pixels
RAM	Up to 4 GB
Operating System	Windows Vista
Optical Drive	DVD-RW
Wireless	802.11a/g/n
Ports	USB 2.0, VGA, Ethernet, Headphone