Toshiba Satellite A30 Series User Manual

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3  Test and Diagnostic Operation Handbook 
3.5  PIO Loopback Test 
3.5  PIO Loopback Test 
The PIO loopback test will check below items through PIO loopback connector. 
Š
 
External Interrupt 
Š
 
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 passed or failed when finished. 
 
 
 
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Satellite A30 Series Maintenance Manual