I have an HK AVR 125 and I've had it for several years under normal use (4-5 hours per day). Two years ago I moved into a new house and relocated the receiver to my bedroom along with DVDplayer, VCR and Satellite box (all sitting on top of Receiver).
I have noticed that the Display window is now starting to dim to the point where it's almost totally out. What can be done to stop/ repair it so that I can see my display again?
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This is a documented problem with the Harmon/Kardon AVR-1700 and the Cox remote. Here's how I solved it. On the HK1700, go to System Settings and turn on HDMI Link. This will allow your TV (if it has the feature) to put the HK in standby mode when you power down the TV. Go to your setting on your TV and turn on HDMI link, or equivalent. I have a Sony TV and the setting is called "Control For HDMI." Then, use code 0110 for your Cox remote. This code will only turn on the HK, not turn it off. BUT, the HDMI Link should put the HK into standby.
I've had the exact problem. HK in the states is no help, you need to deal with a company in Montreal (Jan Industries). Regular techs are unable to fix it without schematics that only authorized dealers have and the manufacturer. This problem happened to me just after 2 years and outside warranty. I've bought a Yamaha today.
You seem have a problem with a component in that channel, the bad news is that it is hard to fix that type of problem (you would be better off if the channel died). All of the components in the final output section are part of the same audio loop (per channel), which makes it hard to find the faulty part.
Sounds to me like a bypass or coupling capacitor is faulty or need to be re-soldered, either way to fix this problem you should take it in to a repair shop.
Subject: Backup Memory on AVR/DPR/HK series receivers.
In the event of the complaint: “the receiver is losing its memory (any programmed system settings)
when the unit is turned off, or after the unit is unplugged (briefly*)”:
Check and replace:
Location: Front PCB
Description: 0.047 Farad 5.5v capacitor
Part number: # P10790-ND or # J3432147324X
I'm having the same problem and this is how far i got so far. I don't kwow how to get and replace this part.
hi it is an amp module failure inside £129.00 plus vat 4 hours to replace total strip out £380.00 total to do these are made by samsung and rebadged horrible things dump it thats my advice regards kirk