SERVICE MANUAL - Nexo

NXAMP4x4Switch the GPI jig to the GPO [5:7] position. Press the [B]button to continue the test.The test executes automatically. If the test result isOK, the display automatically returns to the test menuscreen. (If an error occurs, “ERROR” appears and thetest program is stopped.)Disconnect the GPI jig from the GPIO port.4-7. PORT testTest for factory inspection only.4-8. DSP testPress the [B] button to start the test. The following displayappears.Press the [B] button to continue the test. The test executesautomatically.If normal, the following display appears.Press the [B] button to continue the test. The test executesautomatically.If the test result is OK, the display automatically returnsto the test menu screen.(If an error occurs, “ERROR” appears and the test programis stopped.)4-9. WORD CLOCK testPress the [B] button to start the test. The following displayappears.Press the [B] button to continue the test. The test executesautomatically.If normal, the following display appears.Press the [B] button to continue the test. The test executesautomatically.If the test result is OK, the display automatically returnsto the test menu screen.(If an error occurs, “ERROR” appears and the test programis stopped.)4-10. 12C testPress the [B] button to start the test. The following displayappears.Press the [B] button to continue the test. The test executesautomatically.If the test result is OK, the display automatically returnsto the test menu screen.(If an error occurs, “ERROR” appears and the test programis stopped.)67