Question about Denon AVR-1603 Receiver

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Denon AVR-1600 Power supply problem (115V)

I have a Denon AVR-1600 which I bought off eBay. The problem is different to what was described, but in summary, there is no pwr getting through from the primary pwr supply board (small board) onto the rest of the system.
On the fuse itself, there is pwr on one side but not the other, so I figure it could be a transformer problem, however it could be something simpler than that. I am about to start removing component and test them individually, bit a I am hoping there may be a common problem that I should look into first before anything else.

Any idea would be appreciated.
Also, as I am in Australia, Denon support isn't the best. As such, does anyone have a shematic of the small pwr supply board they may be willing to share?
Regards to all and thanks in advance for your help.

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  • doomchild Dec 04, 2008

    Thanks quang123. Unfortunately I have no lights or LED's when I switch pwr on, so I cannot tell you if there is a problem with the regulator etc.

    Are you able to split the file into smaller .zip o .rar files? I can be emailed on d o o m c h i l d @ o p t u s n e t d o t c o m d o t a u



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I have schematic in PDF file I convert to JPG still over 150KB I can not see properly with JPG format I do not know how to post it to you
Any way check in STBY PCB you must have 5.6V STBY that voltage supply to CPU or system control when you turn on the relay will switch AC line to the big transformer now if any thing wrong with the regulator or output or output drive it will shutdown automatic and the red LED will blinking indicated some thing wrong
Give me exactly location of the component in STBY PCB the small transformer TR?? C?? or R?? with voltage? connector number such as J ??
The service manual is about 20MB

Posted on Dec 04, 2008

  • Henry Jun 08, 2012

    Greetings! I am having a similar problem,though the transformer in mine is completely fried,i mean the main power transformer.I understand that you have the service manual and i was wondering if it would be possible to know what those AC voltages are,that are coming out from the main transformer or as you claimed to have the service manual,if possible send it to me to my mail,which is h e n z 5 @ h o t m a i l . c o m.It would really really help :)


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I have one Denon AVR-1600 too, it have piower problem too. Sometimes it can power on, sometime not, The relay at the power board there is functioning, but there are no display and sound. I am here to wish to ask for do anyone can sponsor me the service manual? If got, just email to and Thanks a lot for your kindness

Posted on Jan 30, 2012


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