960L Multi-Channel Digital Effects System Service Manual
6-30
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TEST 8: Keystuck & Fader Touch Test
This test checks for keys stuck (closed) on the LARC2 Main Board, or if any of the Faders were being
touched during the Power On Diagnostic tests.
• PCMCIA Card Detection:
During this operation, the Power On Diagnostics checks for presence of a PCMCIA Card installed on the
Option Board, if a PCMCIA card has been detected a flag is set.
• Voltage Test:
During this operation, a voltage test is performed to verify the +12V Power Supply is operating between 10-
13 volts by reading the A/D Converter value of the 12VSENSE signal.
NOTE: If a PCMCIA Card was detected during the PCMCIA Card Detection routine (above), the card is now
initialized, and the card type is also detected.
⇒ If the Option Board and PCMCIA Card were present, the LARC2 will now enter the 'Option Board Menu'
as shown in the example below: (Refer to the Option Board Menu section of this document for more
information.)
NOTE: The top line of the 'Interactive Diagnostics' menu displays the date and time of the Boot ROM
build, and line 2 displays the Boot ROM version (the actual text may vary).
⇒ If the 'PROGRAM' + 'MACHINE' keys were pressed during the Power On Diagnostics, the LARC2 will
now request the Menu mode from the 960L Mainframe (when the LARC2 is connected to a 960L). The
LCD display on the LARC2 will indicate the following:
Requesting Menu Mode from 960L...
⇒ If the 'PROGRAM' + 'MACHINE' keys were not pressed during the Power On Diagnostics, the LARC2
will now perform a normal boot process, and attempt to establish communications with the 960L
Mainframe (when the LARC2 is connected to a 960L). The LCD display on the LARC2 will indicate the
following:
Looking for 960L...
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