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Now downloading free:Pass Labs D-1 DAC  [report bad file]  

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File information:
File name:Pass Labs D-1 DAC.pdf
[preview D-1 DAC] new window
Size:238 kB
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MD5 Checksum:ff14343d083e018d0814f14b67188a01
Mfg:

Pass Labs

Model:

D-1 DAC

Original Chassis:
Descr:Pass Labs D-1 DAC digital to analog converter
Group:Electronics > Automobile > Electrical diagram >
Uploaded:2012-11-10 07:08:42
User:georgesco
Multipart:No multipart

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Pass Labs D-1 DAC.pdfTHIS IS NOT INTENDED AS A PROJECT AND WILL NOT BE SUPPORTED AS SUCH. DO NOT CALL US. Service manual for D-1 DAC The D-1 Dac contains 3 separate printed circuit boards in it's chassis. They are the motherboard, receiver board and front panel display and control board. The motherboard has test points for all the on board power supply voltages. These points are located by the heat sinks and labeled on the silk screen. The plus and minus 20 digital are unregulated and are approximate voltages. There are separate 5-volt regulators on the motherboard for VCO and PLL circuits. The receiver board and front panel boards have their own 5-volt regulators. The receiver-input selection is controlled by the front panel microprocessor via Mosfets. These switch one of four relays on the receiver board. The signal is routed to a Crystal 8412 receiver chip. The output of the Crystal chip is feed to the NPC digital filter and also to U7 PLL on the motherboard for the PLL reference. The master clock from

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