Lexicon 960L Service Manual page 45

TMIX Ping Pong RAM Test:
The syntax for the TMIX Ping Pong RAM Test is :TMixPingPongRamTest CardId TMixID [NumRepeats].
This tests a TMix's Ping Pong RAM In addition to testing the TMIX memory itself, this test also checks the
56301's ability to access the Ping Pong RAM in a TMIX chip. The test begins by filling the memory space
under test with a specific data value then reading back the contents of each memory location, confirming
the data contained therein is correct. Values of 0, 0xFFFFFF, 0xAAAAAA and 0x555555 are tested. An
address test is also run that writes each address value into its associated memory location (address 29 has
the value 29 written into it, address 30 has the value 30 written into it, etc...).
Parameters:
CardID:
This number selects which reverb card to test. Legal values are 0 and 1, since only two reverb cards will be
supported. If only one card is present use the number 0.
TMixId:
This specifies which TMIX on the card to test. Legal Values are 0, 1, and 2.
NumRepeats:
This optional parameter specifies how many times to run the test. A value of 0 runs the test indefinitely (until
a key is pressed). Dots are shown on the display to indicate that the test is still running.
Serial Audio Tests:
The syntax for the Serial Audio Test is: SerialAudioTest CardID [NumRepeats].
This tests serial audio paths in the system. The number 555555 hex is written to each channel on each
octal serial line between devices in the system. The following lines are tested:
- - TMIX 3 to Lexichip3 1
- - TMIX 3 to Lexichip3 2
- - TMIX 3 to Lexichip3 3
- - TMIX 3 to Lexichip3 4
- - Lexichip3 1 to TMIX 3
- - Lexichip3 2 to TMIX 3
- - Lexichip3 3 to TMIX 3
- - Lexichip3 4 to TMIX 3
- - Lexichip3 1 to Lexichip3 2 and Lexichip3 2 to Lexichip3 1
- - Lexichip3 3 to Lexichip3 4 and Lexichip3 4 to Lexichip3 3
- - TMIX 2 port 8 to TMIX 1 port 2 through the AES card
- - TMIX 2 port 9 to TMIX 1 port 3 through the AES card
- - TMIX 2 port 2 to TMIX 1 port 10 through the AES card
- - TMIX 2 port 3 to TMIX 1 port 0 through the AES card
- - TMIX 2 port 10 to TMIX 1 port 11 through the AES card
- - TMIX 2 port 11 to TMIX 1 port 1 through the AES card
Note that the data is shifted 1 bit to the right when it passes through the AES card (in its loopback mode) so
data is reported as 2AAAAA for tests, which use it.
Parameters:
CardID:
This number selects which reverb card to test. Legal values are 0 and 1, since only two reverb cards will be
supported. If only one card is present use the number 0.
NumRepeats:
This optional parameter specifies how many times to run the test. A value of 0 runs the test indefinitely (until
a key is pressed). Dots are shown on the display to indicate that the test is still running.
Devices:
0 - TMIX 1
Lexicon
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