Question about Harman Kardon HK 3480 Receiver
I have a HK3480 with no display.
Unit comes on, power LED changes from red to blue, relay clicks, but no other lights come on.
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Posted on Jan 02, 2017
SOURCE: harman kardon
Wow, general problem here, but the most near your problem could be, power failure, or the Power adapter is bad, or a energy failure at home, time to buy a new adapter.
Posted on Dec 30, 2007
SOURCE: shutdown; red LED blinks 4x
The Error 4 is refering to a I2C4 communication error between SSB (small signal board), and the Logic board ( located underneath the SSB (under the bracket). Very high probability the SSB is bad. current replacement SSB 12nc is 313926809052
Posted on May 01, 2008
It will only display via component. Your HDMI firmware is either 1.1 or 1.2 and has HDCP issues (High Definition Copyright Protection) it's a firmware problem that has been fixed on all new receivers, not just a HK issue, all receivers! the new version 1.3a and 1.3b have fixed the issue. Unfortunately you cannot update the firmware on the receiver. Hope this explains it for you, sorry! Lot's of angry people out there!!! myself included.
Posted on Jul 01, 2009
You cant. Unit needs to be calibrated at the dealer with their digital tech or at Iron Cross Audio. www.ironcrossaudio.com
Posted on Aug 21, 2009
turn the sub upsidedown, carefully remove the clear rubber feet (these are a dome fitted over a mushroom top), using the toothed gripper cutout of a pair of pliers (when closed it is the eye shaped opening visible on one side), grip the mushroom firmly but not so hard as to crush the mushroom and gently ease clockwise and anticlockwise (the mushroom is at one end of a clear plug blocking access to the four screws that hold the two parts together.
Be carefull to use the correct size screwdriver so as not to damage the screw heads as they are tight.
On reassembly, you may need to use glue to replace the rubber feet if the mushroom becames damages during removal.
Posted on Dec 11, 2009
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