Denon 1612 shutting down!!!!

[fusebulb]

cant see clearly in the pic, but have u kept it inverted ... it might kill the looks a little bit dont you think

 

[Santy]

I don't have any laptop cooling What you see in the pic is a USB light I used to check if the USB port on my avr can power it up....

Sent from my GT-I9001 using Tapatalk

 

[rishiguru]

@RishiG can u post some pictures of your PC fans attached to ur amp ... and i am wondering how will the fans be powered ... if at all even i have managed to place them on top of the AVR grill...

You can look into my A2070 thread : Yamaha DSP A-2070

I used a PC's SMPS to power up the fans. Mind you there are six fans running in tandem and not one, so a USB port will not suffice. Also I had a spare SMPS lying around so used it to power the cooling fans of both my Yammy & Norge 1000.

You can also look at my Norge 1000 DIY : Norge 1000 Review

Amps like Yamaha DSP-A2070 produce a lot of heat coz they are capable to produce some real and 'true' power. So much so that you are worried more about your speakers than your amp. Also IMHO i believe the Norge 1000 heatsinks are two small.

Avidarthy had pointed out the exact problem of your AVR and adding a self powered sub will be of great help. Anything below 150Hz is a killer for your amp, and if you are not going to replace it you better cool it. Santy have shown you the right path regarding the use of laptop fans from USB. Using them will provide a partial solution but lets face it your Denon 1612 is weak provided the KEF's are not shorted.

 

[fusebulb]

Thanks rishiguru for the links ...

the system is working fine for last few days ... from all the talk it seems it was the thick cloth that was kept on top which had caused the heating issue, nothing was shorted or anything, the AVR just went into a "safety mode"...

yes i would try cooling the AVR with a laptop cooler, and adding a subwoofer should help in smooth functioning....

BTW thank u all for the help ... without which i would not know what to do...??

 

[rishiguru]

from all the talk it seems it was the thick cloth that was kept on top which had caused the heating issue, nothing was shorted or anything, the AVR just went into a "safety mode"...

Never ever wrap amp & AVR's with thick cloth and always provide proper ventilation when they are powered on. Your AVR faced a near death experence with your cloth wrap, make sure they never happen again.

 

[cmsajith]

You dont have to buy a sub to check whether the load on the amp will get reduced, change the front speakers crossover setting in your AVR from Full Range to 80 or 70Hz and try with the same volume.

Also the USB port may not handle the current requirement of multiple fans as the port is probably for the firmwire update or something similar, it can fry the usb board if there is a current draw more than the expected. Its better power them with an external adapter.

Check whether your AVR is having inbuilt fans. I have seen onkyo avrs (606) with small fans.

 

[darshanjoshi]

Also ensure you are using thick cables atleast 14/16AWG.

I had similar issues of my old AVR tripping with thin wires connected to the speakers. Then I replaced them with 14AWG and AVR never tripped again.

 

[anuragn]

Also the USB port may not handle the current requirement of multiple fans as the port is probably for the firmwire update or something similar, it can fry the usb board if there is a current draw more than the expected. Its better power them with an external adapter.

The USB port is for multimedia use.
It will be safe to assume that it is a standard USB port, I mean as per std USB specs. Hence, the output current should be limited to 500mA and extra current draw cannot happen.
I do occasionally use my Oppo DVD player's USB port as well as the USB port in the JVC all in one system to charge my mobile phones.

 

[fusebulb]

i would also like to add a stereo amp to my setup ... i have a pre-out surr back/front height jacks at the back of the AVR can i connect this with a stereo amp ... if not then what is the best way to connect a stereo amp to my AVR.....

 

[saj2001ind]

Thanks rishiguru for the links ...

the system is working fine for last few days ... from all the talk it seems it was the thick cloth that was kept on top which had caused the heating issue, nothing was shorted or anything, the AVR just went into a "safety mode"...

yes i would try cooling the AVR with a laptop cooler, and adding a subwoofer should help in smooth functioning....

BTW thank u all for the help ... without which i would not know what to do...??

"THINK CLOTH" dude you almost choked ur AVR to death, its good that the denon has this protection circuit else ...

never ever cover the AVR with anything

 

[jaudere]

I think the OP Must have heard this advice so many times that he wont cover his avr even in his dreams.

By the way it is a good practice to keep the avr and other electronic equipment covered with a cloth when not in use. One must remember to take the cloth off before switching it on.

 

[cpt blood]

This is exactly what I was wondering. Does any device having a usb port, power up the connected device such as a cooling fan? I was thinking it can work only for data transfer. I am going to check it tonight with a usb light tonight.

If that works, the laptop cooling pad will be a fantastic option for fusebulb to manage the thermal issues. Lot of sexy designs are available.

HEY Santy, yes, any usb port has a minimum of 500mA power and can definately power a single fan.BE CAREFUL usb power overloads damage the motherboard very severely.Really be very careful.The power from usb is very limited.Don't even attatch two fans,unless each is less than 250mA.