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  1. daylite

    Animation of the Fisher 500C selector switch function - w/ seven drawings

    I was facing a job involving rewiring of the 500C’s 7-position 5-section selector switch and realized I did not have near the understanding I needed to feel good starting. To help myself get there I put together 7 drawings to show the state of the network and signal path for each switch...
  2. O

    Weak Right Channel, Only Aux and Tape Inputs

    Hey everyone, I have a Kenwood KR-4070 that I've used for about two years now with no problems but recently I noticed that the right channel is very quiet, but only while running through either the Aux or Tape inputs. The Phono input works flawlessly and has great sound through both L/R...
  3. kryten79

    Pioneer HPM Speaker Manuals

    Just discovered this Pioneer HPM Service Manual PDF on another site, TVCAUDIO. Can download the big PDF from the provided link. I am posting them here in pieces as the file was too large to upload to AK as one file It contains three service manuals The HPM-100 2nd gen. manual is from 1978 and...
  4. F

    Pioneer SA-5500II Type S

    Hi, No need to ask, yes I'm a beginner so I am asking the professionals for help. I am trying to repair this Pioneer but I cannot find anyware the correct diagrams for the Pioneer SA-5500 Type S. The diagrams for Type KU I have but apparently there are a lot of differences between the type S and...
  5. X

    Cloning JBL L7 speakers

    ISO JBL L7 speaker cabinet info to build a set of clones.
  6. dlbraly

    Circuit Diagram

    Looking for a simple free circuit drawing program. Ive seen a few, but wanted to see if anyone has any comments. Any sugestions?
  7. G

    Circuit Sansui ES200 (improved)

    As the title sais, i am looking for the circuit diagram of the ES200 crossover (improved version), or even a picture of the inside. (Sansui N200-03 it sais on the bottom) It seems that the crossovers in my speakers were busted (years ago) and I am certainly missing one capacitor (in both...
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