Thank you, thank you, thank you! My Denon amp has had this problem for years. To the point it was unusable. It was a slightly different model so a bit different inside, but same input selector. I’ve just finished this clean up and it’s working perfectly. It is so great to have my old stereo back!
So I was looking for alternatives for this amp because I kept getting this issue, thanks for this video. I will do one last attempt my own contact cleaning attemps were always not lasting for very long, but I never went into this much depth. Fingers crossed this will work.
Denon The First Name In Digital Audio , I use to sell Denon when I was manager at Oakville Audio during the 90's and it was always the best of mass market audio products , Owned by Hitachi you just know you is getting quality Japanese as Hitachi is one of Japan's biggest companies, I notice those caps are Elna Silmic 2's on those boards ...if you wish to increase the sonic signature of that Denon replace all Silmic 2's with Audio Note Kaisi capacitors oh ya it will be expensive but we'll worth it as those Rubycon s are top notch and used in $10,000 amps maybe even throw a few Mundorf supreme s in there if you can fit them
The pliers things are forceps! they were designed to be used in the medical industry, the reason they have a locking part is so you would lock some cotton to mop up blood when doing surgery
Congratulations, clean workmanship my friend, I used Denon pma-2010 ae, 2020ae, 2500ne, Denon pma-sa1 models for about 10 years, changing them, the amplifiers did not cause the slightest problem, Denon is quality and solid as a tank.
This is exactly how they have finally changed the design of the input option on both the pma 2010 ae and the pma a 110 Anniversary Edition) without any problems. Especially the first one is now closing 14 years of life in general but a cleaning must be done from the dust.
Not sure if that WD40 branded cleaner should be used as spray all over the board ... I would use it to wet the q tip and than clean with just that q tip. As such spray may use too much greasy residue when dried on the board .... also should lithium grease be used at all?
WD40 Specialist electrical contact cleaner is not the WD40 we are all familiar with. It is a cleaner/degreaser for the electronics industry & is a low residue product. Caution should be used in spraying the whole board for a different reason. It (& many similar products in this category) is suspect in the premature failure of electrolytic capacitors. Another good, slightly lower cost & more easily available electrical contact/degreaser cleaner is CRC Mass Air Flow Sensor Cleaner found in many automobile parts shops (e.g. o’Rileys, etc.). This product is low residue & does not attack plastics. Another less common but effective product is DeoxIT D5 from Caeg Laboratories.
I’ve used most of them, the reason I use WD40 Contact Cleaner is it’s safe to use with plastics, most contact cleaners are designed to clean metal parts.
I have fixed at least 30 of this amps (2000r, 2000ae, 2010, 1500 etc. They all use the same inputselector). You ALWAYS desolder it. The amount of force you are exerting on those solder joints are way to much. At least you should reflowe them afterwards! But great video about a common problem, the same selector is also used i other brands, with same isues.
I lost audio on my left channel, I saw smoke coming out, then the left channel shut down I believe as a protection. I took in to have it looked at, just waiting for the answer.
I have the silver or champagne one. And yes, sometimes the input selector is jumping from one input to another. I'm glad that I finally know what is causing it but I'm not going to try and fix this myself. I thought the knob was made from metal/aluminum because it feels cold to the touch. Did they really use plastic knobs 20 years ago for a $2000 amp?! Jeez!
An amp that expensive shouldn't be developing faults like that. Lately Denon has had questionable reliability issues. Yamaha have much better reliability reputation. I no longer buy Denon for this reason.
Thanks for making this video. I bought this same amplifier on the used market about 4 years ago. I know I will eventually need to clean the contacts because it has on rare occasion switched inputs on its own before.
