The **OFFICIAL** DENON AVR-4520CI thread - Page 448 - AVS Forum | Home Theater Discussions And Reviews
Baselworld is only a few weeks away. Getting the latest news is easy, Click Here for info on how to join the Watchuseek.com newsletter list. Follow our team for updates featuring event coverage, new product unveilings, watch industry news & more!



Forum Jump: 
 834Likes
Reply
 
Thread Tools
post #13411 of 13419 Old 08-15-2016, 05:53 PM
AVS Special Member
 
Matt2026's Avatar
 
Join Date: Jul 2014
Location: Silicon Valley
Posts: 3,078
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 288 Post(s)
Liked: 11038
Quote:
Originally Posted by Dreamliner View Post
It's just a fan. I have my receiver in a rack and fans in the back that draw cool air from the front over all of my electronics. Everything is cool to the touch. Some people have used this cooler. Its pretty, but expensive.

I am a very firm believer that heat kills components. I like fans and use them a lot.

I'd look at the upcoming Denon 6300, thats what I'm getting next. I've not yet had a AVR failure, but I'd imagine the repair process will suck regardless of brand.
I worked in the electronics industry here in Silicon Valley for 40 years. Some of that time was related to the military. Silicon components typically have two failure humps. The first hump occurs in the first 1,000 hours. For every 10*C rise in junction temperature the time is cut in half, so 10*C higher the hump come in to 500 hours and going to a still safe higher temp the burn in time can be reduced considerably which the IC manufacturers did on a qualified line so they greatly reduced early failures which you don't want happening on a mission.

One might choose to run new audio/video equipment at an elevated temp to see if it will break early in the warranty period...

Once past what is called infant mortality hump, that first hump, the next cluster of failures occur around 10,000 hours and we don't want to pull that one in but keep it as far out as possible. There are also random failures which we can't do much about but maybe hotter temperatures increase those events also. For units that do not experience either of those two failure humps can have a very long life.

Knowing what I do I put active cooling in place from day one on my 4520: http://www.ebay.com/itm/Receiver-Amp...kAAOSw7ThUpJJJ I like this unit as it is thermostatically controlled and if the unit is above the temperature setting the fans continue to run even after I shut the AVR down. I see no reason to let it continue to "bake" any longer than it has to.

As a side note I had to pull plenty of printed circuit boards and clean the contacts with an eraser and reinsert them to fix various problems... All those circuit boards had gold plated contacts to avoid corrosion and there were still problems at times. In some applications mechanical contacts, such as plug in circuit boards or ICs in sockets, were not allowed. Mechanical connections are a weak link.
Alan P, batpig and bmcn like this.

Regards, Ken (Retired)
9.1) Denon 4520CI; Samsung 55H8000 & BD-F7500; L/R SVS Ultra BS, Ultra Center;
RS Celestion 5; FH & SS Polk; Klipsch R-12SW; CyberPower CP1500PFCLCD (x2)
2.1 Ch.) Nakamichi RE-2, CDC-4A, CR7A, Denon 300F/Ortofon 2M Bronze;
ADS L1290(x2); PINNACLE BABYBOOMER SUB, PANAMAX MR4300
Matt2026 is online now  
Sponsored Links
Advertisement
 
post #13412 of 13419 Old 08-16-2016, 10:41 AM
Member
 
Michaeldef's Avatar
 
Join Date: Sep 2004
Posts: 82
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 32 Post(s)
Liked: 15
4520 red blinking

Does anyone know where to get a svc manual for the 4520, or know whats involved after lightning damage ? Since wa hit the red light just blinks at the power switch

Last edited by Michaeldef; 08-16-2016 at 11:03 AM.
Michaeldef is offline  
post #13413 of 13419 Old 08-16-2016, 10:45 AM
AVS Addicted Member
 
lovinthehd's Avatar
 
Join Date: Dec 2007
Location: OROR
Posts: 15,641
Mentioned: 44 Post(s)
Tagged: 0 Thread(s)
Quoted: 4282 Post(s)
Liked: 4245
Not sure what power sw is particularly (abbreviation for switch?). Try a soft reset and if that doesn't work then try a microprocessor reset. It may have been damaged more seriously, though, if lightning is involved....

ps Never saw a service manual for the unit myself....
lovinthehd is online now  
post #13414 of 13419 Old 08-16-2016, 11:01 AM
Member
 
Michaeldef's Avatar
 
Join Date: Sep 2004
Posts: 82
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 32 Post(s)
Liked: 15
Quote:
Originally Posted by lovinthehd View Post
Not sure what power sw is particularly (abbreviation for switch?). Try a soft reset and if that doesn't work then try a microprocessor reset. It may have been damaged more seriously, though, if lightning is involved....

ps Never saw a service manual for the unit myself....
It had dozens of resets ! All the other gear had fried power supplies, which I replaced and fixed. Just no info for the 4520, thank you
Michaeldef is offline  
post #13415 of 13419 Old 08-16-2016, 11:04 AM
Senior Member
 
hltr's Avatar
 
Join Date: Jun 2006
Location: Chicago area
Posts: 400
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Liked: 25
See first post of the thread for manual link.


Sent from my iPad using Tapatalk
hltr is offline  
post #13416 of 13419 Old 08-16-2016, 11:43 AM
AVS Special Member
 
Schwa's Avatar
 
Join Date: Nov 2000
Location: Ohio
Posts: 2,702
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 776 Post(s)
Liked: 879
Quote:
Originally Posted by hltr View Post
See first post of the thread for manual link.


Sent from my iPad using Tapatalk
There's no service manual link.
Schwa is offline  
post #13417 of 13419 Old 08-16-2016, 01:36 PM
585-645-1006
 
jdsmoothie's Avatar
 
Join Date: Sep 2007
Location: Orlando, FL
Posts: 62,395
Mentioned: 186 Post(s)
Tagged: 1 Thread(s)
Quoted: 9822 Post(s)
Liked: 4568
Quote:
Originally Posted by Michaeldef View Post
Does anyone know where to get a svc manual for the 4520, or know whats involved after lightning damage ? Since wa hit the red light just blinks at the power switch
You may be able to obtain one directly from the Denon Parts division or one of their authorized Parts distributors.

http://denon.custhelp.com/app/answer...ng-denon-parts

------------
"JD" - Call 585-645-1006 or email jd@avscience.com for AVR selection and pricing discussion 8am - 8pm EST daily (incl Sat/Sun)
AV Science - Dealer for Denon, Marantz, Yamaha, Onkyo, Def Tech, Atl Tech, SVS, Oppo

Think you have a defective AVR? Owner's manual - Factory reset 4-5 times in a row.
jdsmoothie is online now  
post #13418 of 13419 Old 08-16-2016, 01:36 PM
Senior Member
 
hltr's Avatar
 
Join Date: Jun 2006
Location: Chicago area
Posts: 400
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Liked: 25
Quote:
Originally Posted by Schwa View Post
There's no service manual link.


Ah, sorry


Sent from my iPad using Tapatalk
hltr is offline  
post #13419 of 13419 Old Today, 02:50 PM
Senior Member
 
Join Date: Aug 2014
Posts: 341
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 228 Post(s)
Liked: 24
Quote:
Originally Posted by lovinthehd View Post
Using something like this is active cooling

What changes to Audyssey do you typically make? Shouldn't be an issue to tweak to your liking.

For your Dish pass thru do you have picture mode (under video/picture adjust in the video menu) set to off?

Hard to imagine a 10-12 dB boost by raising sub level doesn't have an effect. How did you choose the placement of your subs? BTW if set to -12 then your avr is telling you the gain on your sub amp is set a bit too high, anything above -12 should be okay, tho.

I agree @LOVE inthehd. It should have an effect but the effect is minimal. It does not add more ooph but add more muddiness and echo that is not pleasant to the ears. Also seems to create more pressure on the ears if you know what I mean.

When I start the Audyssey, I do the sub level matching and set them each as close to 75db as possible. The noise from the two Amps for the subs creates an issue with pinning it to 75. I put the Inukes at 50% where the dot is at the 12 O'Clock position and then increase it from there to get to 75 db on each sub as suggested on the 4520. Then I run the Audyssey for all 8 positions where all of them are on my 3 seat couch in front.

The subs are on the Front Left (When I am sitting the couch) and the Rear Right.

I will check on the picture mode on the Dish, I am not sure it has one. I have it off on the 4520. The dish is connected to the 4520 via HDMI and then the HDMI out on the 4520 goes to the Sharp LC-80LE857.

My 5 speakers are from Ascend. The Towers with RAAL, the Center with RAAL and two rears are their Sierra-1's. I have made them mad here talking about how I dont think their speakers are as great as everyone thinks at least in my setup. My room acoustics are bad and that is the cause of a lot of my issues but I still think the sound should not be as bad as I think it is or as muted.

For sound the only options on the dish are Dolby Digital or PCM and I have it on PCM. The Dolby Digital sounds worse.

I still did not get it, should i turn Audyssey off once I mess with what audyssey has set up or keep audyssey turned on and at that point it is working with the changed settings?

Thanks for trying to help me.
AVSF458 is online now  
Sponsored Links
Advertisement
 
Reply Receivers, Amps, and Processors

Tags
Denon Avr 4520ci Receiver
Gear in this thread

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off