Table 2-3 Error Code - dynabook PORTEGE X40-J Series Maintenance Manual

Check 2
Check 3
Check 4
■
Use a supplied AC adapter G71C000LR210 (2pin) or G71C000LS210
(3pin).
■
Use only the Type-C adapter comes with the PC or authorized adapter.
2.3.2 Procedure 2 Error Code Check
If the power supply microprocessor detects a malfunction, the DC
IN/battery indicator flashes white. The blink pattern indicates an error as
shown below.
■
Start
■
Error code (8 bit)
"1"
"0"
Interval between data bits
The error code begins with the least significant digit.
Example: Error code 11h (Error codes are given in hexadecimal format.)
Check 1 Convert the DC IN/battery indicator blink pattern into the
hexadecimal error code and compare it to the tables below.
Abnormal definition Error code Conditions
E power output error
during power on process
Maintenance Manual (960-942)
If any other devices except to the AC adapter are not
connected to the USB Type-C adapter, go to Check 3. If any
devices are connected, remove all the devices except to the
AC adapter and check the DC IN/Battery indicator again. If
the indicator lights, there is no problem. If not, go to Check 3.
Remove the USB Type-C adapter and connect the AC
adapter to the computer directly. Then check the DC
IN/Battery indicator again. If the indicator doesn't light, go to
Procedure 3. If it lights, go to Check 4.
The USB Type-C adapter may be faulty or the battery pack
may be exhausted. Connect the AC adapter to the computer
via a new USB Type-C adapter. If the DC IN/Battery indicator
lights, it shows that the original USB Type-C adapter has any
trouble. If the indicator still does not light, the battery pack
may have any trouble. So go to Procedure 4.
Off for 2 seconds
On for one second
On for half second
Off for half second

Table 2-3 Error code

20h During power on process, PCNFEV signal still de-
assertion timeout more than 1s after EVON signal
assertion.
Troubleshooting Procedures
2-7