onkyo tx-nr1007 strange behavior? - AVS Forum
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post #1 of 2 Old 07-07-2013, 11:49 AM - Thread Starter
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I picked up an tx-nr1007 that has a strange malfunction, it will not output sub signals in digital dsp modes and right -height -wide -zone 2 pre-outs don't output either.
but when I check the speaker terminals for r-wide-height-zone2 I get idle voltage when I select those channels.
I can get the sub outputs to function when I select direct and then toggle the sub in setup.
I've been searching for the full service manual but all I can find is the schematic and parts list listed as a service manual.
I need the complete repair guide hopefully I find it soon I have bought this file three times .

I think it may be a dsp problem because control of sub 1-2 r height r wide and r zone 2 according to the schematic come from a single chip.
it could be noise from bad caps or over/under voltage coming from a bad v regulator but without a complete service manual I flying blind.
if any of you have experienced similar problems and have found a solution please drop me a line
Thanks
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post #2 of 2 Old 07-12-2013, 04:37 PM - Thread Starter
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Quote:
Originally Posted by sambou812 View Post

I picked up an tx-nr1007 that has a strange malfunction, it will not output sub signals in digital dsp modes and right -height -wide -zone 2 pre-outs don't output either.
but when I check the speaker terminals for r-wide-height-zone2 I get idle voltage when I select those channels.
I can get the sub outputs to function when I select direct and then toggle the sub in setup.
I've been searching for the full service manual but all I can find is the schematic and parts list listed as a service manual.
I need the complete repair guide hopefully I find it soon I have bought this file three times .

I think it may be a dsp problem because control of sub 1-2 r height r wide and r zone 2 according to the schematic come from a single chip.
it could be noise from bad caps or over/under voltage coming from a bad v regulator but without a complete service manual I flying blind.
if any of you have experienced similar problems and have found a solution please drop me a line
Thanks




Disregard this post I have repaired this unit.biggrin.gif
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