AU-9500 Indicator lamp wiring

Discussion in 'Exclusively Sansui' started by Mico, Jul 13, 2018.

  1. Mico

    Mico Active Member

    Messages:
    345
    Location:
    Montreal
    Got AU-9500 in which someone was messing up with indicator light. LED was installed and wiring done on PS board, one wire soldered directly on the rectifier (!) The best part, same genius had cut off all original wires and threw away lens assembly. Is there any way to trace down where originals wires were attached, except looking at the schematics :) ?
     

    Attached Files:

     

    Please register to disable this ad.

  2. petehall347

    petehall347 the brandy coffee man Subscriber

    Messages:
    27,281
    Location:
    uk.. the middle bit
    not sure about this but maybe someone was trying to change the light to a speaker protect light indicator .. who knows ? needs putting back right anyway .
     
  3. Hyperion

    Hyperion Roobarb & Custard Subscriber

    Messages:
    46,667
    Location:
    Hertfordshire, UK
    It looks like the original 'power on' panel lamp was a 6.3V incandescent bulb connected to a 5V transformer winding and protected by a 1A fuse (F004). The lamp itself is just a straightforward power on lamp, lit when unit is on and not lit when it isn't. ;)
     
    Last edited: Jul 14, 2018
  4. Mico

    Mico Active Member

    Messages:
    345
    Location:
    Montreal
    Thanks, will try to trace it down. This setup looks like a land mine, who in his right mind would connect LED like that?
     
  5. kevzep

    kevzep Its all about the Music Subscriber

    Yep, totally rubbish solution especially when you can buy a drop in replacement LED which works off the AC and doesn't need the unit modified in any way.....
    Hilarious!! Until guys like us have to put it right....
     

Share This Page