Pioneer AVIC-D3/XU/UC Service Manual page 245

5
2. Data Communication (Short Circuit) check (Not for service)
2. Data Communication (Short Circuit) check
Serial I/O #6
Serial I/O #7(for Debug)
[ 8 ] It progresses to the next inspection.
• Short circuit in SIO connection is checked.
• Loopback in 6CH and 7 CH is checked.
• A "wait" screen is displayed until the check is completed.
• While the test result screen is being displayed, press the [ 0 ] key to perform retesting.
• Only when "OK" is displayed, you can go on to the next test with the [ 8 ] key.
3. Data Communication (Open Circuit) check (Not for service)
3. Data Communication (Open Circuit) check
Serial I/O #6
Serial I/O #7(for Debug)
[ 8 ] It progresses to the next inspection.
• Open circuit in SIO connection is checked.
• 6CH and 7CH are checked.
• Do not connect anything to the terminal. In the released state, "OK" will be displayed.
• A "wait" screen is displayed until the check is completed.
• While the test result screen is being displayed, press the [ 0 ] key to perform retesting.
• Only when "OK" is displayed, go on to the next test with the [ 8 ] key.
5
6
OK
OK
OK
OK
AVIC-D3/XU/UC
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