Rank: Member
Groups: Member
Joined: 11/27/2011(UTC)
Posts: 18
Location: Philadelphia, PA
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I have been unsuccessful at getting input to DAC module via 4 input SPDIF board. When my TOSLINK module is directly connected to D1 input on DAC, no issues and lock. Using the same TOSLINK module to the 4 input SPDIF board, no lock. The resistor values are correct (10K - Rz) (0 - Rs). Looking at input and output via scope, the input is ~3.5 Volts and solid up/down edges. Output is not symmetrical with input and has 'bi-level' values and the high is around 4.5 volts. I have checked input voltage (5.25V) and for solder bridges. I have scope pictures, but can't find a converter for wfm to jpg. Any suggestions are welcomed.
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Rank: Member
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Joined: 10/22/2011(UTC)
Posts: 135
Location: Prague
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how long is your cable between spdif level converter and buffalo dac?
also check output with scope after transformer and after the IC.
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Rank: Member
Groups: Member
Joined: 11/27/2011(UTC)
Posts: 18
Location: Philadelphia, PA
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OK. Found issue. It was that the ground connection between GND and - on the input of the 4-channel SPDIF board was broken! Edited by user Sunday, February 26, 2012 9:23:10 AM(UTC)
| Reason: Not specified
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