Question about Onkyo TX-DS777

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Tx-ds777 power light comes on,nothing Else power light on but nothing else. the internal power fuse is good (250v-12A), bothside of the trasformer has no valtage (<1v).

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Dear Dapeng Wang

This could be one reason due to poor soldering of transformer on the PCB, so u need to check for continuity. Else another option could be the transformer might have been fused, hence u will have to check the transformer seperately by soldering it and removing it. These transformers have customed windings and so if the transformer requires replacement the old transformers winding ratios need to be checked to wind the new one. Final, last check is to see all connections and the boards strength for any crack or chipped of copper on top of the board.

Thankyou

Posted on Feb 10, 2008

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Bad transformers try radio shop hi end shops for parts ok

Posted on Feb 10, 2008

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Can i connect an ipod to my Onkyo tx-ds777?


You should be able to do it with the right adapter cable.

Jul 21, 2014 | Onkyo TX-DS777

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No internal battery, a large "SuperCap" on the main board acts as one. Look for C8007, 0.1 F, 5.5V.

Apr 26, 2010 | Onkyo TX-DS777

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My Onkyo TX-DS777 lost power. I believe this to be a blown fust, but am uncertain, any thoughts?


It seems like the internal fuse to me, too. But you could check to make sure that the receptacle works (maybe you've got a tripped breaker).
The manual also suggests unplugging and re-plugging the unit to clear "external noise" from the "computer circuits," but something tells me that you've already tried that.

Sep 20, 2009 | Onkyo TX-DS777

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Onkyo TX-SV525 A/V Receiver The fuse by the power supply(internal) is a 6.3A 125 V. Is it a 3 phase fuse? Will a 6.3A 250V fuse(not 3 phase)work?


The same rating fuse will work as long as the "Ampere" side is the same. The "Voltage" of the fuse determines the input Voltage that will be allowed. As long as you are sure that the input will only be 120V the fuse will work properly but I would recommend using the same Voltage and Amperage of the original fuse since it may fail again. Given that information if it does blow again I would recommend taking it to a specialist. A 3 Phase fuse is only available to 3 Phase inputs (480V). Unless you live in a large compound your house doesn't have that type of capability.

Sep 17, 2009 | Onkyo TX-SV525 Receiver

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Power problem


Danny,

It may only need to be reset, unplug it for a min. plug it back in and try it.
Check your owners manual some will tell you how to reset them.

Also check for a jammed switch, press every switch one by one if one doesn't move that is the problem, you can possibly unjam it with a small screwdriver.

But it could need servicing.

Jan 23, 2009 | Onkyo TX-DS777

1 Answer

Remote problem on onkyo TX-DS777


ya thats the universal remotes having list of codes .
first you set up with the code that should match for your revelent make and model of your dvd player.
so you just go through with codeing list that accompany with purchaseing of universal remote.
and set up with code particularly for your make and model of your dvd player.
and finaly try with your dvd player.
ok all the best.

Oct 08, 2008 | Onkyo TX-DS777

1 Answer

Onkyo TX-DS777 Problem


man I think i have the same problem....
i push the power button but immediatly the LED turns off. I cheked the fuse but thats not the problem. Please if you solve your problem let me know...
my e.mail adress soy_robertog01@hotmail.com
sorry if you dont undersatnd me in some parts..im not very good writting english haha sorry..

Jun 22, 2008 | Onkyo TX-DS777

1 Answer

CONSTANT HIGH VOLUME LEVEL


Hello stizaliz,

Click on this link and you'll be at Onkyo's website. On the top right corner there's a search box. Type in your receiver model and enter. You'll be taken to the page where the owner's manual can be downloaded and all your connection questions will be answered.
Hope this helps. Let me know.

cancerags

Dec 29, 2007 | Onkyo TX-DS777

1 Answer

Tx-ds777


Same thing happened to our TX-DS777.

Took it to a locate electronic comany and they told us it was the

DSP board gone bad. Est 425.00 to 450.00 to fix.

 

Aug 16, 2007 | Onkyo TX-DS777

1 Answer

Power light on, unit will not turn on with push button


When power was intermittant, were there any other discrepencies or audible power deprivation to the speakers? Your problem has many possibilites from fuses to major amplifier problems to common power supply failures. Being intermittant then dead may still be a simple fix, but not without some physical intervention of test gear. Sorry, Jaszy

May 30, 2007 | Onkyo TX-DS777

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