Service Manual - AMS Neve

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SynchroNet ES/2 Service Manual CIRCUIT DESCRIPTION PROGRAM MODULE Hex switch & links fpga : SUPPORT switches Hex_en fpga : MCN Kernel microprocessor Front panel switches SW_en latch SWITCH BOARDS Figure 14 : Switch inputs The switches are polled approximately every 20ms by the KERNEL microprocessor, the keys are debounced in software. Issue 1 1:19
CIRCUIT DESCRIPTION SynchroNet ES/2 Service Manual References The ES/2 has 7 sources of reference to which the unit can reference and is capable of generating 2 reference signals. There are 3 68B40 timer counter chips ( CTCs) which measure/generate these reference signals. Figure 15 shows a block diagram of the reference signals. !itach CTC 2 tlrate ESBus interface Machine interface (tach) Itach pl1b fpga : MCN SF5 CTC 3 tlsync tcgref Timecode interface (reader) fsync itcr5f latch sframe CTC 1 TL5 Timecode interface (generator) fpga : SPLIT vframe SSU_A video in Pulse comparator pulse SSU_B Video sync seperator vsync blackhole : exp latch Kernel microprocessor field fpga : SUPPORT Figure 15 : Reference signals within the ES/2 The reference signals can be split up into 3 groups : Machine reference signals : Tach signal. LTC signal. The signal SFRAME is used when the ‘MACH’ reference is selected for the timeline or generator reference. The FPGA MCN switches between the frame rate ITACH signal and the LTC frame signal FSYNC depending on whether the machine is a tach or code locked machine. Similarly PL1B is a 5x tach rate signal and LTCR5F is a 5x LTC signal and is switched to generate SF5. This signal is used for servoing the machine. 1:20 Issue 1
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Page 3 and 4: Contents SynchroNet ES/2 Service Ma
Page 5 and 6: CIRCUIT DESCRIPTION SynchroNet ES/2
Page 21: CIRCUIT DESCRIPTION SynchroNet ES/2
Page 33 and 34: ES/2 TEST SOFTWARE SynchroNet ES/2
Page 53 and 54: MACHINE PARAMETERS SynchroNet ES/2
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MACHINE PARAMETERS SynchroNet ES/2
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APPENDIX A SynchroNet ES/2 Service
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APPENDIX A SynchroNet ES/2 Service
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APPENDIX B SynchroNet ES/2 Service
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APPENDIX C SynchroNet ES/2 Service
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Index SynchroNet ES/2 Service Manua
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Service Manual - AMS Neve

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