Async Test - Toshiba Portege M100 Maintenance Manual

3 Tests and Diagnostics
3.10

Async Test

To execute the Async Test, select 7 from the DIAGNOSTIC TEST MENU, press Enter and
follow the directions displayed on the screen. Move the highlight bar to the subtest you want to
execute and press Enter.
NOTE: A Port Replicator and an IBM compatible printer must be connected to the system
to execute this test.
Subtests 01 through 07 require the following data format:
Method:
Speed:
Data:
Data pattern: 20h to 7Eh
The following message will appear at the bottom of the screen when the subtests 01, 02, and 03 are
selected:
Channel#1 = XXXXh
Channel#2 = XXXXh
Channel#3 = XXXXh
Select the Channel number (1/2/3)
The serial I/O port address is specified by the XXXXh number. Select the serial port channel
number and press Enter to start the subtest.
Subtest 01 Wraparound (board)
NOTE: To execute this subtest, connecting a RS-232C wraparound connector is
neccesary. The connector wiring diagram is described in Appendix F.
This subtest checks the data send/receive function through the wraparound
connector (34M741621G01).
3-24
Asynchronous
9600BPS (Subtests 01 to 04)
38400BPS (Subtests 06, 07)
8 bits and one parity bit (EVEN)
PORTEGE M100 Maintenance Manual (960-452)
3.10 Async Test