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|2nd April 2004, 03:47 AM||#1|
Join Date: Apr 2003
Location: Sarnia, Ontario, Canada
Audio Alchemy DAC-in-the-Box Repair
Audio Alchemy DAC-in-the-Box Repair - Questions on my Voltage Measurements- Has my Digital Filter Failed?
Pending Post by dtm1962 (A) on April 01, 2004 at 20:42:16
I am repairing my Audio Alchemy Dac-in the Box and I have +3 VDC at both outputs. I have the following measurements:
At output of OP275 opamp - Pin 1 : 3VDC Right
Pin 7 : 3VDC Left
At output of AD1864 Dac - Pin 10 (DR) -3VDC
Pin 15 (DL) -3VDC
At output of Yamaha YM3434 Dig. Filter - Pin 10 (DRO) +5VDC
- Pin 9 (DLO) +5VDC
All of the analog & digital +/-5VDC are correct at all of the above
power supply pins where applicable. And all grounds measure 0V
The input Signal indication LED is lit when there ia a digital source
and will go out if I disconnect/turn off the CD Transport.
Question: Has the Yamaha Digital Filter YM3434 failed?
Thanks in advance.
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