960L Multi-Channel Digital Effects System Service Manual
Chapter 6 Troubleshooting ......................................................................... 6-1
Diagnostics...............................................................................................................................................6-1
Overview...............................................................................................................................................6-1
960L Diagnostics: .................................................................................................................................6-1
960L Diagnostic User Interface: ...........................................................................................................6-2
Audio I/O Algorithm (8 In - 8 Out): ........................................................................................................6-3
Functional Diagnostic Test Scripts .......................................................................................................6-3
960L Setup for Functional Diagnostic Tests .........................................................................................6-4
960L Power On Diagnostic Descriptions: .............................................................................................6-4
960L Functional Diagnostic Descriptions:.............................................................................................6-5
960L Troubleshooting Tools: ..............................................................................................................6-16
Global Commands: .............................................................................................................................6-17
LISTING of RESIDENT SCRIPTS ......................................................................................................6-18
LARC2 DIAGNOSTICS ..........................................................................................................................6-24
Debug Port:.........................................................................................................................................6-25
POWER ON DIAGNOSTICS:.................................................................................................................6-26
Power On Diagnostics Sequence: ......................................................................................................6-26
Power On Self Tests:..........................................................................................................................6-28
INTERACTIVE DIAGNOSTICS:.............................................................................................................6-33
Self Test:.............................................................................................................................................6-34
LCD Test:............................................................................................................................................6-35
Key Test:.............................................................................................................................................6-35
LED Test:............................................................................................................................................6-36
Joystick Test: ......................................................................................................................................6-38
Fader/Motor Test: ...............................................................................................................................6-39
Lexicon Test: ......................................................................................................................................6-39
Memory Test:......................................................................................................................................6-40
Repetitive Test:...................................................................................................................................6-40
Diagnostics Suite: ...............................................................................................................................6-41
OPTION BOARD Menu:.........................................................................................................................6-42
MISCELLANEOUS TESTS:................................................................................................................6-44
Program Flash Data Checking:...........................................................................................................6-46
Chapter 7 Theory of Operation ................................................................... 7-1
NLX Backplane.........................................................................................................................................7-1
Overview...............................................................................................................................................7-1
Circuit Description.................................................................................................................................7-1
NLX Interface (Sheet1) .........................................................................................................................7-2
PCI Interface (Sheets 2, 3, 4) ...............................................................................................................7-2
IO Connectors (Sheet 5).......................................................................................................................7-2
Miscellaneous Connectors (Sheet 6)....................................................................................................7-2
IOBUS & Power Connectors (Sheet 7).................................................................................................7-2
DSPBUS Connectors (Sheet 8, 9)........................................................................................................7-3
I/O Backplane...........................................................................................................................................7-4
Introduction ...........................................................................................................................................7-4
Overview...............................................................................................................................................7-4
Circuit Description.................................................................................................................................7-5
I/O Clock card - Input/Output and Clock Generator card..........................................................................7-7
Midi Interface ........................................................................................................................................7-7
Ttl Wordclock Interface .........................................................................................................................7-7
Larc2 Interface......................................................................................................................................7-8
CPLD Logic...........................................................................................................................................7-8
Control Interface .................................................................................................................................7-10
Register Descriptions..........................................................................................................................7-10
Access ................................................................................................................................................7-10
Description .............................................................................................................................................7-10
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