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3. Tests and Diagnostics 3.5 PIO Loopback Test
3-8 [CONFIDENTIAL] Satellite M40X/M45X/Satellite Pro M40X/EQUIUM M40X Series Maintenance
Manual
3.5 PIO Loopback Test
The PIO loopback test will check below items through PIO loopback connector.
? External Interrupt
? External Loopback
- including Pattern test, Data Pin test, Control register test & Control pin/ Status pin test.
NOTE: Remember to connect a PIO loopback connector to the computer's printer port
before test begins.
The screen should display as below, indicating whether the test is passed or failed when finished.