TC Electronic DB2, Руководство пользователя

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SELF TEST
Accessing the Self-Test Routines
• Press and hold the OK key while powering
up the DB2 to access the self-test.
• Press UTILITY to select “T”.
• Press OK to enter.
• Press UTILITY to select test-number and
press OK to start the test.
Test 0 – LED test
Turns all LEDs on.
Test 1 – Analog In/Out Test
Connect a balanced cable between ONE
analog Output and ONE analog Input.
The Input meter for the used Input should show
-12 dB.
The symbol “+” will indicate that the test for the
currently used input and output combination is
positive.
The symbol “-” will indicate that there is a
problem with the input or the output. In this
case, try the test with the other analog input/
output to narrow down the problem.
Connect the cable to the other output and input
in order to test these.
Test 2 – AES/EBU In/Out Test
Connect AES/EBU Input and Output using a
balanced cable.
The INPUT meters should show 0 dB. The
symbol “+” will indicate that the test is positive.
The symbol “-” will indicate that there is a
problem with the input or the output.
Test 3 – S/PDIF In/Out Test
Connect S/PDIF Output and Input using an
RCA cable.
The Input meters will show 0 dB.
The symbol “+” will indicate that the test is
positive.
The symbol “-” will indicate that there is a
problem with the input or the output.
Test 4 – RS232 remote I/O Test
Connect Rx and Tx on the RS-232 connector
(pin no. 2 to pin no. 3).
The symbol “+” will indicate that the test has
been completed successfully.
The symbol “-” will indicate that there is a
problem.
Test 5 – GPI Input Test
Connect the tip and sleeve of the GPI Input
jack using a switch.
When the switch is closed (tip is connected
to ground) the symbol “+” should be shown,
otherwise the symbol “-” is shown.
Test 6 – Battery Test
The battery voltage is tested. If it is within limits,
the symbol “+” is shown, otherwise the symbol
“-” is shown.
Test 7 – System Test
The ASIC, DSP, DSP RAM and EEPROM are
tested while the digit “7” is flashing.
The symbol “+” will indicate that the test results
are positive.
The symbol “-” will indicate that there are
problems.
Test 8 – Ex.RAM Test
The Ex.RAM memory board is tested for one
minute while the digit “8” is flashing.
The symbol “+” will indicate that the test results
are positive.
The symbol “-” will indicate that there are
problems.
Service Note
In case of the unlikely event that the unit needs
to be sent in for service, please pack it in the
original box AND an outer box before sending
it.
DB2 PRESETS