Toshiba Satellite 110 Series Maintenance Manual page 70

3.10 Async Test
To execute the Async Test, select 7 from the Diagnostic Test Menu, press Enter, and follow
the directions on the screen. The Async Test contains five subtests that test the computer's
asynchronous communication functions. Move the highlight bar to the subtest you want to
execute and press Enter.
Subtests 01 through 04 require the following data format:
Method:
Speed:
Data:
Data pattern:
The following message appears at the bottom of the screen when Subtests 01, 03, 04, or 05
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. Press Enter to start the subtest.
Subtest 01 Wraparound (Board)
NOTE: To execute this subtest, an RS-232-C wraparound connector
(34M741621G01) must be connected to the RS-232-C port. The
RS-232-C wraparound connector wiring diagram is described in
Appendix F.
Checks the data send/receive function through the wraparound connector.
Subtest 02 Board (#1) <=> board (#2)
Not used.
3-24
Asynchronous
9600bps (Subtests 01 to 05)
8 bits and one parity bit (EVEN)
20h to 7Eh
110 Series