Async Test - Toshiba PORTEGE A600 Maintenance Manual

3.12 Async Test

3.12 Async Test
CAUTION: Printer Test is not supported for this model.
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.
Subtests 01 and 02 require the following data format:
Subtest 01
NOTE: To execute subtests 01 and 02, each computer must have access to the other
Subtest 02
Subtest 03
NOTE: To execute this subtest, a RS-232C wraparound connector must be connected to
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Method: Asynchronous
Speed: 38400BPS
Data: 8 bits and one parity bit (EVEN)
Data pattern: 20h to 7Eh
FIR/SIR Point to point (send)
computer's infrared port.
This subtest sends 20h through 7Eh data to the receive side, then receives the
sent data and compares it to the original data through the FIR/SIR port.
FIR/SIR Point to point (receive)
This subtest is used with subtest 01 described above. This subtest receives the
data from the send side, then sends the received data through the FIR/SIR
port.
Wraparound (board)
the RS-232C port.
This subtest checks the data send/receive function through the wraparound
connector.
3 Tests and Diagnostics
[CONFIDENTIAL] 3-25