BII Fault !! Seeking help Options  Watch this topic  Print this topic  Atom Feed  RSS Feed View » Normal Threaded

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DKL		#1 Posted : Tuesday, September 13, 2011 2:51:38 AM(UTC)
Rank: Member Groups: Member Joined: 5/4/2010(UTC) Posts: 16		Hi All I own 2 x BII in Dual Mono mode. Today,Suddenly out of work and Auto-Mute LED and Lock LED all light-on. Try solve problem like-- 1.Use SPDIF input direct from TOSLINK module 2.Use I2S-GND/D1 input also from TOSLINK module 3.Reset the BII on board But same as before - out of sound Thanks
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Russ White		#2 Posted : Tuesday, September 13, 2011 2:52:37 PM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		Both DACs have the same behavior? Can you post images of your setup?
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DKL		#3 Posted : Wednesday, September 14, 2011 9:57:12 PM(UTC)
Rank: Member Groups: Member Joined: 5/4/2010(UTC) Posts: 16		Thanks Russ I break down and switch to stereo mode to try but still same behavior. DKL attached the following image(s): L1020353S.jpg (26kb) downloaded 170 time(s). L1020347S.jpg (25kb) downloaded 167 time(s). You cannot view/download attachments. Try to login or register.
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pinnocchio		#4 Posted : Thursday, September 15, 2011 6:56:07 AM(UTC)
Rank: Member Groups: Member Joined: 11/3/2010(UTC) Posts: 169 Location: Quebec		How much voltage are you supplying to your DACs? 5.25 volts should be the most. Are you shunting enough current on your PSU?
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DKL		#5 Posted : Thursday, September 15, 2011 8:34:48 AM(UTC)
Rank: Member Groups: Member Joined: 5/4/2010(UTC) Posts: 16		Yes -Placid supply 5.45V and Shunt 70ma/0.070VDC Thank you
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LeonvB		#6 Posted : Thursday, September 15, 2011 10:06:52 AM(UTC)
Rank: Member Groups: Member Joined: 5/23/2010(UTC) Posts: 708 Location: Netherlands Thanks: 2 times Was thanked: 48 time(s) in 45 post(s)		How is that measured? On a hot Placid or on a cold one? 5.25V when it's hot is a good measurement for a Placid. 5.45 when it's hot means you're likely going too high for the Tridents when the Placid is still cold. Also, please note you're powering shunt PSUs. A shunt of 50mA is enough, more just generates extra heat.
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DKL		#7 Posted : Thursday, September 15, 2011 5:34:46 PM(UTC)
Rank: Member Groups: Member Joined: 5/4/2010(UTC) Posts: 16		Measure Plcid ON after 10 min. Try adjust to 5.25V/50ma,same behavoir. Looks like DAC chip gone,Trident 3.28V/3.25V/1.18V and AVCC goes to 3.45V and 3.48V Thnaks Pinnocchio,Thanks LeonvB Edited by user Saturday, September 17, 2011 2:32:29 AM(UTC)  | Reason: Not specified
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DKL		#8 Posted : Saturday, September 17, 2011 2:37:33 AM(UTC)
Rank: Member Groups: Member Joined: 5/4/2010(UTC) Posts: 16		Hi Russ,Pinnocchio,LeonvB Where and how to replace DAC chips?? Thanks All
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glt		#9 Posted : Saturday, September 17, 2011 4:52:20 PM(UTC)
Rank: Member Groups: Member Joined: 11/9/2007(UTC) Posts: 453 Location: usa		There is no reason for the DAC chips to be "gone". The tridents should go first, but they are working fine.
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DKL		#10 Posted : Saturday, September 17, 2011 6:39:23 PM(UTC)
Rank: Member Groups: Member Joined: 5/4/2010(UTC) Posts: 16		Trident and AVCC and Power supply all fine but can't play,by the way the SW1 in all ON. Thanks glt Problem founded. My 2 sets Trident 3.3V x 2, 1.2V x 2 are fault only 2 x 3.3V in normal and replace but same behavoir Appearance of Trident all LED light like normal Thank you glt Edited by user Sunday, September 18, 2011 1:40:08 AM(UTC)  | Reason: Not specified
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