Friday, October 13, 2023

Denon AVR-3808ci no video, no digital anything


  • No video out
  • No OSD
  • No surround sound


  • Try to determine what all these have in common
  • Self-test confirms suspicions
  • Check voltages
  • Determine area of failure
  • Test suspect components
  • Pull components that seem suspect for out-of-circuit testing
  • Dig for a suitable relacement and test

Link to the service manual here (free, but you need an account. I find this site very useful, but the manual is available elsewhere if you care to look.)

Link to a replacement KSA1281 transistor from Mouser here.

Friday, November 21, 2014

Play Base Firmware Updated

Jump over to and get the latest firmware.