TC electronic SDN BHD D22 Key test, Delay + Control wheel test, LED test, Display test, GPI test

APPENDIX - Self test

Press the BYPASS key while powering up to access the self-test and select “ RUN TEST PROGRAM” using the CURSOR keys.

Use the CONTROL ADJUST wheel to scroll through the different self tests.

Key test

Select Keys test by pressing OK.

The keys must be pressed in the order they are requested by the D22 to pass the test.

Power off to exit test.

DELAY + CONTROL wheel test

Select ADJUST wheel test by pressing OK.

Turn the ADJUST wheels to 30 and back to 0 to pass test. Power off to exit test.

LED test

Select LED test by pressing OK.

Turn the CONTROL ADJUST wheel to test the LEDs one by one. The test is “ok” when all LEDs are lit.

Power off to exit test.

Display test

Select Display test by pressing OK.

Press OK to check that all pixels are lit. Press any key to leave the pixel test.

Power off to exit test.

Analog I/O test

Select analog I/O test by pressing OK

Connect a D22 analog Output to a D22 analog Input and press OK. Use a balanced cable.

PPM must show -12 dB to pass test. Power off to exit test.

Digital I/O test

Select digital I/O test by pressing OK.

Connect the D22’s AES/EBU Output to the D22’s AES/EBU Input and press OK.

PPM must show 0dB to pass test.

Connect the D22’s S/PDIF Output to the D22’s S/PDIF Input and press OK.

PPM must show 0dB to pass test. Power off to exit test.

RS485 test

Select RS485 test by pressing OK.

Confirm that result is ok

Power off to exit test.

GPI test

Select GPI test by pressing OK.

Connect a momentary switch to the GPI socket. When pressing the switch, the result should be OK. When released, the result should be NOT OK. Power off to exit test.

PCMCIA Card test

Select PC Card test by pressing OK.

Insert PC Card.

Note that all data on the PC Card will be destroyed. Press OK to test.

Result reads:

-Low battery - Time to change battery in your PC Card.

-Not Ok - Try the test using another PCMCIA card. Power off to exit test.

Battery test

Select Battery test by pressing OK.

Confirm that result is OK.

Power off to exit test.

System test

Select System test by pressing OK.

Confirm that result is OK.

Result reads:

-EEPROM Not OK - The unit will most likely work ok, the message is for service matters only.

-DSP Not OK - Contact your local dealer.

Power off to exit test.

Power Off - On to start standard software.

Buit In test v. 3.09

Service note

In case of the unlikely event that the unit needs to be send in for service, please use the original box AND an outer box.

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